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Andersen ML, Lavigne G, Dal Fabbro C, Tufik S. Erectile dysfunction and sleep related bruxism: An exploratory review of an improbable association. Sleep Med Rev 2024; 77:101970. [PMID: 38964237 DOI: 10.1016/j.smrv.2024.101970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/26/2024] [Accepted: 06/14/2024] [Indexed: 07/06/2024]
Abstract
The World Health Organization recognizes sexual health as not merely the absence of disease, but a state of physical, mental, and social well-being in relation to one's sexuality. Achieving sexual satisfaction is pivotal for many individuals, as it significantly contributes to their quality of life. Among various sexual disorders, erectile dysfunction (ED) is notably prevalent, affecting an estimated 10-20 million men in the United States alone. This condition impacts not just the person experiencing it but also significantly influences their intimate connections with partners. Although the causes of ED are multifactorial, recent research highlights a compelling association between sleep disorders, such as sleep deprivation, obstructive sleep apnea (OSA), and insomnia, and the incidence of ED. Furthermore, engaging in night work has been observed to exacerbate the risk of developing ED. One common sleep disorder, sleep related bruxism (SRB), despite its prevalence, has not generally been associated with ED. However, there is some interesting evidence hinting at a potential relationship, including a few studies reporting a high prevalence of ED in individuals with SRB. This review delves into the epidemiological, etiological, and mechanistic links between ED and SRB, aiming to uncover potential intersections between these two conditions. These insights could pave the way for innovative research avenues, possibly exploring treatments like vasodilation medication, that might concurrently address both ED and SRB.
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Affiliation(s)
- Monica Levy Andersen
- Departamento de Psicobiologia - Universidade Federal de São Paulo - São Paulo, Brazil; Sleep Institute - São Paulo, Brazil.
| | - Gilles Lavigne
- Faculté de Médecine Dentaire, Université de Montréal, Canada; Center for Advanced Research in Sleep Medicine, CIUSS Nord Lle de Montreal and Stomatology, CHUM, Montreal, Canada
| | - Cibele Dal Fabbro
- Sleep Institute - São Paulo, Brazil; Faculté de Médecine Dentaire, Université de Montréal, Canada; Center for Advanced Research in Sleep Medicine, CIUSS Nord Lle de Montreal and Stomatology, CHUM, Montreal, Canada
| | - Sergio Tufik
- Departamento de Psicobiologia - Universidade Federal de São Paulo - São Paulo, Brazil; Sleep Institute - São Paulo, Brazil
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Robbins R, Quan SF. Sleep Disorders. NEJM EVIDENCE 2024; 3:EVIDra2400096. [PMID: 39315865 DOI: 10.1056/evidra2400096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
AbstractThere are more than 90 recognized sleep disorders, many of which impair sleep and daytime function and adversely impact heath, well-being, and chronic disease risk. Unfortunately, many sleep disorders are undiagnosed or not managed effectively. This review describes how to identify, evaluate, and treat common sleep disorders.
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Affiliation(s)
- Rebecca Robbins
- Division of Sleep Medicine, Harvard Medical School and Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston
| | - Stuart F Quan
- Division of Sleep Medicine, Harvard Medical School and Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston
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Ishiyama H, Liu S, Nishiyama A, Fueki K. Morning headache caused by obstructive sleep apnea misdiagnosed as temporomandibular disorders-related headache: A case report. J Prosthodont Res 2024:JPR_D_24_00050. [PMID: 39198201 DOI: 10.2186/jpr.jpr_d_24_00050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2024]
Abstract
PATIENT A 67-year-old woman presented to our clinic with chief complaints of headache and mandibular heaviness. Physical examination revealed bilateral tenderness in the temporalis and masseter muscles, corresponding to the patient's chief complaint. Thus, a diagnosis of temporomandibular disorders (TMDs)-related headache was made. However, sleep disorders were identified after further consultation. Hence, sleep apnea-related headache was suspected due to a snoring habit with a Mallampati classification of Class IV. Out-of-center sleep testing (OCST) revealed a respiratory event index (REI) of 10.1/h and a low peripheral oxygen saturation (SpO2) of 76%. Consequently, a diagnosis of obstructive sleep apnea (OSA) was made, and treatment using the mandibular advancement device (MAD) was recommended. Following MAD treatment, the patient's sleep quality improved, and morning headaches ceased. Subsequent OCST performed while wearing the MAD showed a significant reduction in the REI to 1.6/h and an increase in the SpO2 to 86%, indicating the therapeutic efficacy of the MAD in treating OSA. DISCUSSION MAD treatment effectively alleviated the patient's morning headaches, suggesting that sleep bruxism should not be considered the only cause of headaches. OSA should also be considered and addressed when investigating the potential causes of morning headaches in patients. CONCLUSIONS In patients experiencing TMDs symptoms and morning headaches, TMDs should not be presumed as the sole cause. Dentists should discuss the likelihood of sleep disorders during consultations. If sleep disorders are suspected, the possibility of OSA should be considered, and sleep tests should be conducted when necessary.
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Affiliation(s)
- Hiroyuki Ishiyama
- Department of Masticatory Function and Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shaoyuan Liu
- Department of Masticatory Function and Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akira Nishiyama
- Department of General Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kenji Fueki
- Department of Masticatory Function and Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Li D, Lobbezoo F, Hilgevoord AAJ, de Vries N, Aarab G. Prevalence and risk factors of sleep bruxism in adults with primary snoring: a large-scale polysomnographic study. J Clin Sleep Med 2024; 20:1331-1337. [PMID: 38607243 PMCID: PMC11294144 DOI: 10.5664/jcsm.11142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/13/2024]
Abstract
STUDY OBJECTIVES To determine the prevalence and risk factors of sleep bruxism (SB) in adults with primary snoring (PS). METHODS This study included 292 adults with PS (140 males, 152 females; mean age ± standard deviation = 42.8 ± 12.2 years; mean body mass index ± standard deviation = 26.7 ± 4.7 kg/m2) without previous treatment for snoring. SB was diagnosed based on the frequency of the biomarker of SB: rhythmic masticatory muscle activity (SB when rhythmic masticatory muscle activity ≥ 2 episodes/h). Logistic regression was performed, with SB as the dependent variable and with age, sex, body mass index, and sleep- and respiratory-related polysomnographic parameters as the independent variables to identify the risk factors for SB. RESULTS The prevalence of SB was 44.6% in adults with PS. Younger age (odds ratio = 0.965 [0.944, 0.987]) and shorter total sleep time (odds ratio = 0.760 [0.609, 0.948]) significantly increased the risk of SB (P < .05). CONCLUSIONS SB is highly prevalent in adults with PS. Younger age and shorter sleep time are significant risk factors for SB in adults with PS. CLINICAL TRIAL REGISTRATION Registry: onderzoekmetmensen.nl; Name: A Large Sample Polysomnographic Study on Sleep Bruxism; URL: https://trialsearch.who.int/Trial2.aspx?TrialID=NL-OMON19947; Identifier: NL8516. CITATION Li D, Lobbezoo F, Hilgevoord AAJ, de Vries N, Aarab G. Prevalence and risk factors of sleep bruxism in adults with primary snoring: a large-scale polysomnographic study. J Clin Sleep Med. 2024;20(8):1331-1337.
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Affiliation(s)
- Deshui Li
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Clinical Neurophysiology, OLVG West, Amsterdam, The Netherlands
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University, Jinan, China
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | | | - Nico de Vries
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Otorhinolaryngology, OLVG West, Amsterdam, The Netherlands
- Faculty of Medicine and Health Sciences, Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital (UZA), Edegem, Belgium
| | - Ghizlane Aarab
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Valenti C, Federici MI, Coniglio M, Betti P, Pancrazi GP, Tulli O, Masciotti F, Nanussi A, Pagano S. Mechanical and biological properties of polymer materials for oral appliances produced with additive 3D printing and subtractive CAD-CAM techniques compared to conventional methods: a systematic review and meta-analysis. Clin Oral Investig 2024; 28:396. [PMID: 38916682 DOI: 10.1007/s00784-024-05772-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 06/11/2024] [Indexed: 06/26/2024]
Abstract
OBJECTIVES The aim of this review was to analyze mechanical and biological properties of resin materials used with subtractive or additive techniques for oral appliances fabrication and compare them to those conventionally manufactured. MATERIALS AND METHODS The protocol was registered online at Open Science Framework (OSF) registries ( https://osf.io/h5es3 ) and the study was based on the preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P). An electronic search was conducted on MEDLINE (via PubMed), Scopus, and Web of Science from 1 February 2022 to 1 May 2022. INCLUSION CRITERIA in vitro and in vivo studies published in the last 10 years, with CAD-CAM or 3D printed resins for occlusal splints. Data considered homogenous were subjected to meta-analysis (95% confidence interval [CI]; α = 0.05) with Stata17 statistical software. Since all variables were continuous, the Hedge g measure was calculated. A fixed-effects model was used for I2 = 0%, while statistical analysis was conducted using a random-effects model with I2 > 0%. RESULTS 13 studies were included after full-text reading. The mechanical properties most studied were wear, flexural strength, surface hardness and surface roughness, while only 1 study investigated biological properties, performing the XTT viability assay. For the meta-analysis, only surface roughness, volume loss, and flexural strength were selected. Considering surface roughness, the subtractive specimen had a lower average value compared to traditional ones (Hedge's g with 95% CI = -1.25[ -1.84, - 0.66]). No significant difference was detected in terms of volume loss (P > 0.05) between the groups (Hedge's g with 95% CI = -0.01 [-2.71, - 2.68]). While flexural strength was higher in the control group (Hedge's g with 95% CI = 2.32 [0.10-4.53]). CONCLUSION 3D printed materials showed properties comparable to conventional resins, while milled splint materials have not shown better mechanical performance compared with conventional heat-cured acrylic resin. Polyetheretherketone (PEEK) have great potential and needs to be further investigated. Biological tests on oral cell populations are needed to confirm the long-term biocompatibility of these materials. CLINICAL RELEVANCE The use of "mixed splints" combining different materials needs to be improved and evaluated in future research to take full advantage of different characteristics and properties.
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Affiliation(s)
- Chiara Valenti
- CISAS "Giuseppe Colombo", University of Padua, Via Venezia, 15, Padua, 35131, Italy
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, Perugia, 06156, Italy
| | - Maria Isabella Federici
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, Perugia, 06156, Italy
| | - Maddalena Coniglio
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, Perugia, 06156, Italy.
- Strada vicinale Via delle Corse, S. Andrea delle Fratte, Perugia, 06132, Italy.
| | - Paolo Betti
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, Perugia, 06156, Italy
| | - Gian Piero Pancrazi
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, Perugia, 06156, Italy
| | - Ornella Tulli
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, Perugia, 06156, Italy
| | - Francesca Masciotti
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, Perugia, 06156, Italy
| | | | - Stefano Pagano
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, Perugia, 06156, Italy
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Dadphan N, Chalidapongse P, Muntham D, Chirakalwasan N. Prevalence and predictors of sleep bruxism in patients with obstructive sleep apnea and the effect of positive airway pressure treatment. Sleep Breath 2024; 28:1119-1125. [PMID: 38172271 DOI: 10.1007/s11325-023-02985-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 12/03/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Sleep bruxism (SB) is often found to co-exist with obstructive sleep apnea (OSA). However, there are no data on prevalence and risk factors of SB in patients with OSA patients regarding the effect of optimal positive airway pressure (PAP). OBJECTIVE This study aimed to study prevalence and risk factors of SB in OSA and to compare SB episodes during pre-treatment versus during optimal PAP therapy. METHODS This investigation was a retrospective study including randomly selected patients with OSA who underwent split-night polysomnography. Data were collected from August 2021 to October 2022. Clinical demographic data and SB data were analyzed. The association between SB episodes and obstructive respiratory events were manually reviewed. If most of the SB episodes were observed within 5 s following obstructive respiratory events, SB was defined as SB associated with OSA. Comparison of SB index (SBI) was made between baseline portion of the study versus during optimal PAP. RESULTS Among 100 patients enrolled, mean age was 50.8 ± 16.7 years and 73 subject (73%) were male. Mean respiratory disturbance index (RDI) and mean nadir oxygen saturation were 52.4 ± 33.4 and 79.3 ± 11.2% respectively. During the baseline portion of the study, 49 patients (49%) had SB and 31 patients (31%) had severe SB (SBI ≥ 4). Sleep bruxism associated with OSA was observed in 73.5% of all SB. The risk factor for SB was endorsement of nocturnal tooth grinding (odds ratio (OR) 5.69, 95%CI 1.74-18.58). Risk factors for severe bruxism were male sex (OR 4.01, 95%CI 1.02-15.88) and endorsement of nocturnal tooth grinding (OR 9.63, 95%CI 2.54-36.42). Risk factors for SB associated with OSA were non-supine RDI (OR 1.02, 95%CI 1.001-1.034) and endorsement of nocturnal tooth grinding (OR 5.4, 95%CI 1.22-23.93). In SB group, when comparison was made between baseline portion and during optimal PAP, significant reduction of SBI was observed (5.5 (3.2, 9.3) vs. 0 (0, 2.1), p < 0.001). Median difference of SBI between baseline portion and during optimal PAP was 4.4 (2.0, 8.3) (p < 0.001). CONCLUSIONS In this group of patients with OSA, almost half was observed to have SB in which the majority were associated with OSA. Optimal PAP resulted in a significant reduction in SB episodes. In addition to endorsement of nocturnal tooth grinding, non-supine RDI was observed to be a potential risk factor for SB associated with OSA.
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Affiliation(s)
- Nattapot Dadphan
- Excellence Center for Sleep Disorders, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
- Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Premthip Chalidapongse
- Dental Sleep Medicine Clinic, Dental Hospital and Department of Oral Diagnostic Science, Faculty of Dentistry, Prince of Songkla University, Hat-Yai, Songkhla, Thailand
| | - Dittapol Muntham
- Excellence Center for Sleep Disorders, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
- Section for Mathematics, Faculty of Science and Technology, Rajamangala University of Technology Suvarnabhumi, Phranakhon Si Ayutthaya, Thailand
| | - Naricha Chirakalwasan
- Excellence Center for Sleep Disorders, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand.
- Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
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Wakita R, Kusumoto Y, Shinozuka O, Fukayama H, Maeda S. Dental findings and intravenous sedation in a patient with Potocki-Lupski syndrome: A case report. SPECIAL CARE IN DENTISTRY 2024. [PMID: 38698537 DOI: 10.1111/scd.13008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/24/2023] [Accepted: 04/17/2024] [Indexed: 05/05/2024]
Abstract
AIMS Potocki-Lupski syndrome (PTLS), which is caused by the partial duplication of the short arm of autosome 17, is characterized by feeding difficulties associated with muscle hypotonia and dysphagia in infancy, followed by growth retardation and low body weight in later stages. Speech and motor developmental disorders are observed in childhood, accompanied by autism spectrum disorders in several cases. Other disorders include dental and skeletal abnormalities, and associated sleep apnea. Herein, we describe the first case of dental evaluation and treatment under intravenous sedation in a patient with PTLS. METHODS A 13-year-old boy with PTLS and intellectual disability was referred for the treatment of dental caries. Routine intraoral examination and dental treatment were not feasible. As the patient had no muscle hypotonia, dysphagia, or severe growth delay, intraoral examination and dental treatment were successfully performed under intravenous sedation. No incidence of intraoral airway obstruction or aspiration was reported. The patient was followed-up post-operatively. CONCLUSION PTLS, a newly identified syndrome, is associated with cardiovascular abnormalities, dysphagia, failure to thrive, and sleep apnea, which are potential risk factors for sedation. This case report highlights the importance of facial and oral findings in determining the risks of difficulties in airway management.
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Affiliation(s)
- Ryo Wakita
- Department of Dental Anesthesiology and Orofacial Pain Management, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Yasuka Kusumoto
- Department of Pediatric Dentistry and Special Needs Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Osamu Shinozuka
- Department of Pediatric Dentistry and Special Needs Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Haruhisa Fukayama
- Department of Dental Anesthesiology and Orofacial Pain Management, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Shigeru Maeda
- Department of Dental Anesthesiology and Orofacial Pain Management, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
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De Pieri M, Bueltemann L, Tedone F, Riccardi S, Castelnovo A, Miano S, Manconi M. Clinical and instrumental features in 82 patients with insufficient sleep syndrome. J Sleep Res 2024; 33:e14076. [PMID: 37909272 DOI: 10.1111/jsr.14076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/18/2023] [Accepted: 10/09/2023] [Indexed: 11/03/2023]
Abstract
Insufficient sleep syndrome possibly represents the worldwide leading cause of daytime sleepiness, but remains poorly recognised and studied. The aim of this case series is to comprehensively describe a cohort of patients with insufficient sleep syndrome. Eighty-two patients were studied concerning demographic and socio-economic features, medical, psychiatric and sleep comorbidities, substance use, sleep symptoms, actigraphy, video-polysomnography, multiple sleep latency tests and treatment. The typical patient with insufficient sleep syndrome is a middle-aged adult (with no difference of gender), employed, who has a family, often carrying psychiatric and neurological comorbidities, in particular headache, anxiety and depression. Other sleep disorders, especially mild sleep apnea and bruxism, were common as well. Actigraphy was a valuable tool in the characterisation of insufficient sleep syndrome, showing a sleep restriction during weekdays, associated with a recovery rebound of night sleep during weekends and a high amount of daytime sleep. An over- or underestimation of sleeping was common, concerning both the duration of night sleep and daytime napping. The average daily sleep considering both daytime and night-time, weekdays and weekends corresponds to the recommended minimal normal duration, meaning that the burden of insufficient sleep syndrome could mainly depend on sleep fragmentation and low quality. Sleep efficiency was elevated both in actigraphy and video-polysomnography. Multiple sleep latency tests evidenced a tendency toward sleep-onset rapid eye movement periods. Our study offers a comprehensive characterisation of patients with insufficient sleep syndrome, and clarifies their sleeping pattern, opening avenues for management and treatment of the disorder. Current options seem not adapted, and in our opinion a cognitive-behavioural psychotherapy protocol should be developed.
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Affiliation(s)
- Marco De Pieri
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Service de psychiatrie adulte, Département de psychiatrie, Hôpitaux universitaires de Genève, Genève, Switzerland
| | - Linda Bueltemann
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Francesco Tedone
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Silvia Riccardi
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
| | - Anna Castelnovo
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Silvia Miano
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Mauro Manconi
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
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Thomas DC, Manfredini D, Patel J, George A, Chanamolu B, Pitchumani PK, Sangalli L. Sleep bruxism: The past, the present, and the future-evolution of a concept. J Am Dent Assoc 2024; 155:329-343. [PMID: 38363252 DOI: 10.1016/j.adaj.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/26/2023] [Accepted: 12/26/2023] [Indexed: 02/17/2024]
Abstract
BACKGROUND The concept of sleep bruxism (SB) has evolved exponentially over the past several decades. Many theories and hypotheses have been proposed as to the definition, pathophysiology, and management of SB, from the early 1960s through the present. The role of peripheral factors, such as dental occlusion, in the pathogenesis of SB has been discarded. TYPES OF STUDIES REVIEWED The authors searched several electronic databases (ie, PubMed, Google Scholar, Web of Science, Embase, and Ovid MEDLINE) for studies on bruxism. The search was conducted from January 1961 through May 2023 and yielded 4,612 articles, of which 312 were selected for comprehensive review after eliminating duplicates and nonfocused articles. RESULTS There has been an evident progressive shift from the role of peripheral factors, such as dental occlusion, to more central factors, such as the involvement of a central pattern generator as well as the autonomic nervous system, in the genesis of bruxing movements. There is continued robust interest in the dental community to elucidate the contributing factors involved in SB. CONCLUSIONS AND PRACTICAL IMPLICATIONS The neurophysiology of SB appears to be leaning more toward central rather than peripheral factors. There is increasing evidence of the role of the autonomic nervous system, genetics, and comorbidities in the genesis of SB. The scientific literature seems to refute the role of dental occlusion in the causation of bruxing movements. As per the literature, there has been a paradigm shift in the definition and genesis of SB and its possible dental implications and management, which also highlights the need for succinct scientific studies in this regard.
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Cid-Verdejo R, Domínguez Gordillo AA, Hallal-Peche F, Ardizone García I, Martínez Orozco FJ. Is there an association between sleep bruxism and obstructive sleep apnea? A case-control polysomnographic investigation. Sleep Med 2024; 114:1-7. [PMID: 38141521 DOI: 10.1016/j.sleep.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/30/2023] [Accepted: 12/10/2023] [Indexed: 12/25/2023]
Abstract
OBJECTIVES To estimate the statistical and epidemiological association between Sleep bruxism (SB) and Obstructive sleep apnea (OSA) based on OSA severity, and to describe sleep data findings within the analyzed population. METHODS A case-control study (N = 37) was conducted on subjects with and without OSA. All subjects underwent a full-night polysomnographic recording at the Sleep Unit (Clinical Neurophysiology Department) of San Carlos University Hospital. The diagnosis and severity of OSA were determined using ICSD-3 and AASM-2.6 scoring. The definitive SB diagnosis was obtained through a self-report test, physical examination, and PSG recordings. Variables used to study the association between both conditions included the apnea and hypopnea episodes, the Apnea-hypopnea index (AHI), the number of SB episodes per night, and the bruxism index. Chi2, correlations, and ANOVA were calculated. The epidemiological association was calculated using the OR. RESULTS SB showed an epidemiological association with OSA, with an OR of 0.15 (0.036-0.68), suggesting it could be considered a protective factor (p < 0.05). OSA patients presented fewer average SB episodes (6.8 ± 12.31) than non-OSA patients (25.08 ± 31.68). SB episodes correlated negatively (p < 0.05) with the AHI and the number of hypopneas (p < 0.05). The average number of SB episodes was significantly higher in patients with mild OSA compared to those with severe OSA. CONCLUSIONS In this sample of patients with subclinical and mild OSA, SB may act as a protective factor. However, confirmation of these results with a larger sample size is necessary.
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Affiliation(s)
- Rosana Cid-Verdejo
- Faculty of Dentistry, Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n, 28040, Madrid, Spain; Department of Clinical Dentistry, Faculty of Biomedical Sciences, Universidad Europea de Madrid, 28005, Madrid, Spain.
| | | | - Fadi Hallal-Peche
- Clinical Neurophysiology Department, Hospital Central de la Defensa Gómez Ulla, 28028, Madrid, Spain
| | - Ignacio Ardizone García
- Faculty of Dentistry, Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n, 28040, Madrid, Spain
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Ahlberg J, Lobbezoo F, Hublin C, Piirtola M, Kaprio J. Self-reported sleep bruxism in 1990 and 2011 in a nationwide twin cohort: Evidence of trait persistence and genetic liability. J Oral Rehabil 2024; 51:119-124. [PMID: 36062358 DOI: 10.1111/joor.13368] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 07/17/2022] [Accepted: 08/09/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Due to different assessment modes employed, a clear picture of the prevalence of sleep bruxism across time cannot be formed. Moreover, studies on the persistent or fluctuating nature of sleep bruxism have yielded divergent and even contradictory results. The aim of the present study was to evaluate in a nationwide twin cohort whether self-reported sleep bruxism was correlated longitudinally, pairwise and cross-twin over a 20-year period. OBJECTIVES Self-reported bruxism was assessed in 1990 and 2011 by mailed questionnaires in the Finnish Twin Cohort study of same-sex twins born 1945-1957. METHODS We assessed the phenotypic stability over time for all participating individuals (n = 4992). Among zygosity verified pairs (n = 516 MZ and n = 837 DZ), we estimated the cross-sectional zygosity correlations and the zygosity-specific cross-twin cross-time correlations. RESULTS Reported bruxism appeared rather persistent over time without significant difference regarding zygosity. The overall phenotypic longitudinal correlation was 0.540 and somewhat higher in men (0.596) than in women (0.507). Pairwise trait correlations in 1990 and 2011 were higher in MZ than in DZ pairs. The cross-twin cross-time correlations were higher in MZ twins than in DZ twins, but less than the cross-sectional MZ and DZ pairwise correlations. CONCLUSIONS The higher correlation of reported sleep bruxism in the cross-twin cross-time analyses in MZ than in DZ pairs implies a genetic background for bruxism persistence. Also, bruxism over time in individual twins appears to be fairly persistent and somewhat higher in men than women.
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Affiliation(s)
- Jari Ahlberg
- Department of Oral and Maxillofacial Diseases, University of Helsinki, and Helsinki University Hospital, Helsinki, Finland
| | - Frank Lobbezoo
- Department of Orofacial pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | | | - Maarit Piirtola
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
- UKK Institute for Health Promotion Research, Tampere, Finland
| | - Jaakko Kaprio
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
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12
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Tinastepe N, Iscan I. Relationship between bruxism and smartphone overuse in young adults. Cranio 2024; 42:55-62. [PMID: 33787472 DOI: 10.1080/08869634.2021.1909456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To evaluate the possible relationship between bruxism and smartphone overuse and assess the potential role of anxiety and depression in this relationship. The null hypothesis was that there was no significant difference between sleep bruxism (SB) and/or awake bruxism (AB) and non-bruxers in the level of smartphone overuse, anxiety, and depression. METHODS In total, 167 dental students were included in this study. They were evaluated using the American Academy of Sleep Medicine (AASM) criteria, Smartphone Addiction Scale (SAS), Beck Anxiety Inventory (BAI), and the Beck Depression Inventory (BDI). T-test and chi-square test were used to compare the means and percentages between groups. RESULTS A higher percentage of sleep bruxers were high smartphone users (60.3%) compared to non-SBs (44.2%). The frequencies of high smartphone users among participants with high anxiety and depression were higher than those with low anxiety and depression. CONCLUSION SB and high smartphone use were positively associated.
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Affiliation(s)
| | - Ipek Iscan
- Department of Prosthodontics, Medipol University, Istanbul, Turkey
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13
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Leung AKC, Wong AHC, Lam JM, Hon KL. Sleep Bruxism in Children: A Narrative Review. Curr Pediatr Rev 2024; 21:40-50. [PMID: 37724678 DOI: 10.2174/1573396320666230915103716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 09/21/2023]
Abstract
Sleep bruxism, characterized by involuntary grinding or clenching of the teeth and/or by bracing or thrusting of the mandible during sleep, is common in children. Sleep bruxism occurs while the patient is asleep. As such, diagnosis can be difficult as the affected child is usually unaware of the tooth grinding sounds. This article aims to familiarize physicians with the diagnosis and management of sleep bruxism in children. A search was conducted in May 2023 in PubMed Clinical Queries using the key terms "Bruxism" OR "Teeth grinding" AND "sleep". The search strategy included all observational studies, clinical trials, and reviews published within the past 10 years. Only papers published in the English literature were included in this review. According to the International classification of sleep disorders, the minimum criteria for the diagnosis of sleep bruxism are (1) the presence of frequent or regular (at least three nights per week for at least three months) tooth grinding sounds during sleep and (2) at least one or more of the following (a) abnormal tooth wear; (b) transient morning jaw muscle fatigue or pain; (c) temporary headache; or (d) jaw locking on awaking. According to the International Consensus on the assessment of bruxism, "possible" sleep bruxism can be diagnosed based on self-report or report from family members of tooth-grinding sounds during sleep; "probable" sleep bruxism based on self-report or report from family members of tooth-grinding sounds during sleep plus clinical findings suggestive of bruxism (e.g., abnormal tooth wear, hypertrophy and/or tenderness of masseter muscles, or tongue/lip indentation); and "definite" sleep bruxism based on the history and clinical findings and confirmation by polysomnography, preferably combined with video and audio recording. Although polysomnography is the gold standard for the diagnosis of sleep bruxism, because of the high cost, lengthy time involvement, and the need for high levels of technical competence, polysomnography is not available for use in most clinical settings. On the other hand, since sleep bruxism occurs while the patient is asleep, diagnosis can be difficult as the affected child is usually unaware of the tooth grinding sounds. In clinical practice, the diagnosis of sleep bruxism is often based on the history (e.g., reports of grinding noises during sleep) and clinical findings (e.g., tooth wear, hypertrophy and/or tenderness of masseter muscles). In childhood, sleep-bruxism is typically self-limited and does not require specific treatment. Causative or triggering factors should be eliminated if possible. The importance of sleep hygiene cannot be over-emphasized. Bedtime should be relaxed and enjoyable. Mental stimulation and physical activity should be limited before going to bed. For adults with frequent and severe sleep bruxism who do not respond to the above measures, oral devices can be considered to protect teeth from further damage during bruxism episodes. As the orofacial structures are still developing in the pediatric age group, the benefits and risks of using oral devices should be taken into consideration. Pharmacotherapy is not a favorable option and is rarely used in children. Current evidence on the effective interventions for the management of sleep bruxism in children is inconclusive. There is insufficient evidence to make recommendations for specific treatment at this time.
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Affiliation(s)
- Alexander K C Leung
- Department of Pediatrics, The University of Calgary, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Alex H C Wong
- Department of Family Medicine, The University of Calgary, Calgary, Alberta, Canada
| | - Joseph M Lam
- Department of Pediatrics and Department of Dermatology and Skin Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kam L Hon
- Department of Paediatrics, The Chinese University of Hong Kong, and Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Hong Kong
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14
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Conti PCR, Cunha CO, Conti ACDCF, Bonjardim LR, Barbosa JS, Costa YM. Secondary bruxism: A valid diagnosis or just a coincidental finding of additional masticatory muscle activity? A narrative review of literature. J Oral Rehabil 2024; 51:74-86. [PMID: 37688286 DOI: 10.1111/joor.13592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 08/08/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
INTRODUCTION Bruxism is defined as a repetitive masticatory muscle activity that can manifest it upon awakening (awake bruxism-AB) or during sleep (sleep bruxism-SB). Some forms of both, AB and SB can be associated to many other coexistent factors, considered of risk for the initiation and maintenance of the bruxism. Although controversial, the term 'secondary bruxism' has frequently been used to label these cases. The absence of an adequate definition of bruxism, the non-distinction between the circadian manifestations and the report of many different measurement techniques, however, are important factors to be considered when judging the literature findings. The use (and abuse) of drugs, caffeine, nicotine, alcohol and psychoactive substances, the presence of respiratory disorders during sleep, gastroesophageal reflux disorders and movement, neurological and psychiatric disorders are among these factors. The scarcity of controlled studies and the complexity and interactions among all aforementioned factors, unfortunately, does not allow to establish any causality or temporal association with SB and AB. The supposition that variables are related depends on different parameters, not clearly demonstrated in the available studies. OBJECTIVES This narrative review aims at providing oral health care professionals with an update on the co-risk factors and disorders possibly associated with bruxism. In addition, the authors discuss the appropriateness of the term 'secondary bruxism' as a valid diagnostic category based on the available evidence. CONCLUSION The absence of an adequate definition of bruxism, the non-distinction between the circadian manifestations and the report of many different measurement techniques found in many studies preclude any solid and convincing conclusion on the existence of the 'secondary' bruxism.
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Affiliation(s)
- Paulo Cesar R Conti
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
| | - Carolina Ortigosa Cunha
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
| | - Ana Cláudia de Castro F Conti
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
- Department of Orthodontics and Pediatric Dentistry, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Leonardo R Bonjardim
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
- Department of Biologic Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | | | - Yuri Martins Costa
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
- Department of Biosciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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15
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Haraki S, Tsujisaka A, Shiraishi Y, Toyota R, Katagiri A, Toyoda H, Ishigaki S, Taniike M, Kato T. Reciprocal first night effect on rhythmic and non-rhythmic oromotor episodes in moderate to severe primary sleep bruxism: A retrospective physiological study. J Oral Rehabil 2024; 51:131-142. [PMID: 37077152 DOI: 10.1111/joor.13474] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 03/23/2023] [Accepted: 03/30/2023] [Indexed: 04/21/2023]
Abstract
BACKGROUND Sleep on the first night in a sleep laboratory is characterized by a lower sleep quality and frequency of rhythmic masticatory muscle activity (RMMA) than that on the second night in moderate to severe sleep bruxism (SB) patients. OBJECTIVE The aims of this study was to clarify the physiological factors contributing to the first night effect on oromotor activity during sleep and investigate whether physiological factors involved in the first night effect differed between rhythmic and non-rhythmic oromotor activities. METHODS Polysomnographic data collected on two consecutive nights from 15 moderate to severe SB subjects (F 7: M 8; age: 23.2 ± 1.3 [mean ± SD] years) were retrospectively analysed. Sleep variables, RMMA and non-specific masticatory muscle activity (NSMA) were scored in relation to episode types (i.e. phasic or tonic and cluster or isolated), sleep architecture and transient arousals. The relationships between nightly differences in oromotor and sleep variables were assessed. The distribution of oromotor events, arousals, cortical electroencephalographic power, RR intervals and heart rate variability were examined in relation to sleep cycle changes. These variables were compared between the first and second nights and between RMMA and NSMA. RESULTS Sleep variables showed a lower sleep quality on Night 1 than on Night 2. In comparisons with Night 1, the RMMA index increased by 18.8% (p < .001, the Wilcoxon signed-rank test) on Night 2, while the NSMA index decreased by 17.9% (p = .041). Changes in the RMMA index did not correlate with those in sleep variables, while changes in the NSMA index correlated with those in arousal-related variables (p < .001, Spearman's rank correlation). An increase in the RMMA index on Night 2 was found for the cluster type and stage N1 related to sleep cyclic fluctuations in cortical and cardiac activities. In contrast, the decrease in the NSMA index was associated with increases in the isolated type and the occurrence of stage N2 and wakefulness regardless of the sleep cycle. CONCLUSION Discrepancies in first night effect on the occurrence of RMMA and NSMA represent unique sleep-related processes in the genesis of oromotor phenotypes in SB subjects.
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Affiliation(s)
- Shingo Haraki
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Akiko Tsujisaka
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Yuki Shiraishi
- Department of Orthodontics and Dentofacial Orthopedics, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Risa Toyota
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Ayano Katagiri
- Department of Oral Physiology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Hiroki Toyoda
- Department of Oral Physiology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Shoichi Ishigaki
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Masako Taniike
- United Graduate School of Child Development, Osaka University, Osaka, Japan
- Osaka University Hospital, Sleep Medicine Center, Osaka, Japan
| | - Takafumi Kato
- Department of Oral Physiology, Osaka University Graduate School of Dentistry, Osaka, Japan
- United Graduate School of Child Development, Osaka University, Osaka, Japan
- Osaka University Hospital, Sleep Medicine Center, Osaka, Japan
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16
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Ahlberg J, Lobbezoo F, Manfredini D, Piirtola M, Hublin C, Kaprio J. Self-reported sleep bruxism and mortality in 1990-2020 in a nationwide twin cohort. J Oral Rehabil 2024; 51:125-130. [PMID: 36840364 DOI: 10.1111/joor.13441] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 01/18/2023] [Accepted: 02/20/2023] [Indexed: 02/26/2023]
Abstract
BACKGROUND The association of sleep bruxism with mortality has not been studied. OBJECTIVES Altogether 12 040 subjects from the nationwide Finnish twin cohort were included in the analyses. We examined whether self-reported sleep bruxism is associated with increased risk of mortality, and if so, whether the effect is independent of known common risk factors. The time span of the follow-up was 30 years. METHODS Cox proportional hazards regression models (Hazard Ratios and their 95% Confidence Intervals) adjusted by age, sex and covariates were used to assess the effect of baseline bruxism status in 1990 on future mortality in 1990-2020. RESULTS The risk of mortality among all participants (n = 12 040), independent of missing covariates and adjusted by age and sex, was 40% higher in weekly bruxers than in never bruxers (HR 1.40, 95% CI 1.16-1.68, p < .001). However, when adjusted by all studied covariates, (n = 11 427) the risk was no longer observed (HR 1.04, 95% CI 0.86-1.25, p = .717). Despite the overall lack of between bruxism and mortality after adjustment for covariates, we examined the cause-specific risks for major cause-of-death groups. There were no substantial associations of weekly bruxism with major disease outcomes by the fully adjusted hazard ratios for them. CONCLUSION Bruxism does not kill-in line with its definition of being rather a behaviour (with all its phenotypes) than a disease.
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Affiliation(s)
- Jari Ahlberg
- Department of Oral and Maxillofacial Diseases, University of Helsinki, and Helsinki University Hospital, Helsinki, Finland
| | - Frank Lobbezoo
- Department of Orofacial pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Daniele Manfredini
- School of Dentistry, Department of Biomedical Technologies, University of Siena, Siena, Italy
| | - Maarit Piirtola
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
- UKK Institute for Health Promotion Research, Tampere, Finland
| | | | - Jaakko Kaprio
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
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17
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Lu JJ, Zhang FY, Feng Y, Yang YF, Guo Y, Feng YZ. The Chinese version of the brief pain inventory-Facial (BPI-F) among different populations: Factor structure and measurement invariance. J Dent 2023; 139:104771. [PMID: 37925049 DOI: 10.1016/j.jdent.2023.104771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 10/28/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023] Open
Abstract
OBJECTIVE This study aimed to translate and adapt the Brief Pain Inventory-Facial (BPI-F) into Chinese, proposing a validated Chinese version for clinical application. METHODS To evaluate the applicability of Chinese BPI-F, this study included two groups: clinical sample (406 patients with OFP) and non-clinical sample (514 college students without OFP medical history). Content validity was improved through patient interviews. Cronbach's α was used to evaluate the reliability of BPI-F in both groups. The best-fit factor structure was tested on clinical sample via exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Convergent and discriminant validity of BPI-F was evaluated by Spearman's coefficient. Serial CFA was used to assess measurement invariance between the two groups. RESULTS Content validity and reliability of BPI-F were verified. EFA results support a two-factor structure, interference with general activities (1-7 items) and face-specific pain interference (8-14 items). CFA results demonstrated this two-factor structure is appropriate for different populations. Spearman results showed that BPI-F had good convergent and discriminant validity. Full measurement invariance is observed across the two groups. CONCLUSION The Chinese BPI-F, with two-factor structure (interference with general / orofacial functions), enables accurate assessment of functional interference caused by OFP. BPI-F has the same significance in different clinical populations, which expands its application. CLINICAL SIGNIFICANCE This manuscript proposed the Chinese version of the BPI-F and examined its psychometric characteristics for the first time. This validated scale provides a favorable instrument for aiding individual diagnosis and treatment for OFP patients in China.
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Affiliation(s)
- Jing-Jie Lu
- Medical Psychological Center, the Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Feng-Yi Zhang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Yao Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Yi-Fan Yang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Yue Guo
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China.
| | - Yun-Zhi Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China.
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18
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Strausz T, Strausz S, Palotie T, Ahlberg J, Ollila HM. Genetic analysis of probable sleep bruxism and its associations with clinical and behavioral traits. Sleep 2023; 46:zsad107. [PMID: 37140068 PMCID: PMC10566239 DOI: 10.1093/sleep/zsad107] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 03/06/2023] [Indexed: 05/05/2023] Open
Abstract
STUDY OBJECTIVES Sleep bruxism (SB) can cause damage on teeth, headache and severe pain affecting both sleep and daily functioning. Yet despite the growing interest into bruxism, the underlying clinically relevant biological mechanisms remain unresolved. The aim of our study was to understand biological mechanisms and clinical correlates of SB including previously reported disease associations. METHODS We used data from the FinnGen release R9 (N = 377 277 individuals) that are linked with Finnish hospital and primary care registries. We identified 12 297 (3.26%) individuals with International Classification of Diseases (ICD)-10 codes used for SB. In addition, we used logistic regression to examine the association between probable SB and its clinically diagnosed risk factors and comorbidities using ICD-10 codes. Furthermore, we examined medication purchases using prescription registry. Finally, we performed the first genome-wide association analysis for probable SB and computed genetic correlations using questionnaire, lifestyle, and clinical traits. RESULTS The genome-wide association analysis revealed one significant association: rs10193179 intronic to Myosin IIIB (MYO3B) gene. In addition, we observed phenotypic associations and high genetic correlations with pain diagnoses, sleep apnea, reflux disease, upper respiratory diseases, psychiatric traits, and also their related medications such as antidepressants and sleep medication (p < 1e-4 for each trait). CONCLUSIONS Our study provides a large-scale genetic framework to understand risk factors for SB and suggests potential biological mechanisms. Furthermore, our work strengthens the important earlier work that highlights SB as a trait that is associated with multiple axes of health. As part of this study, we provide genome-wide summary statistics that we hope will be useful for the scientific community studying SB.
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Affiliation(s)
- Tommi Strausz
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Satu Strausz
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Tuula Palotie
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, Helsinki University Hospital, Helsinki, Finland
- Orthodontics, Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Jari Ahlberg
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, Helsinki University Hospital, Helsinki, Finland
| | - Hanna M Ollila
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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19
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Li D, Lobbezoo F, Kuang B, Hilgevoord AAJ, de Vries N, Aarab G. Effects of continuous positive airway pressure and mandibular advancement appliance therapy on sleep bruxism in adults with obstructive sleep apnea: a pilot study. Sleep Breath 2023; 27:1857-1864. [PMID: 36867294 PMCID: PMC10539441 DOI: 10.1007/s11325-023-02799-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 02/08/2023] [Accepted: 02/22/2023] [Indexed: 03/04/2023]
Abstract
STUDY OBJECTIVES This study aimed to investigate the effects of continuous positive airway pressure (CPAP) and mandibular advancement appliance (MAA) therapy on rhythmic masticatory muscle activity (RMMA), a biomarker of sleep bruxism (SB), and to compare the effects of CPAP with MAA in adults with obstructive sleep apnea (OSA). METHODS This cohort study included individuals with OSA who received treatment with CPAP or MAA. Polysomnographic recordings with and without therapy were performed in each individual. Statistical analyses were performed with repeated measures ANOVA. RESULTS A total of 38 individuals with OSA were enrolled, 13 on CPAP and 25 with MAA, mean age 52.6 ± 10.6 years, 32 men, mean baseline apnea-hypopnea index (AHI) 26.5 ± 15.2 events/hour, mean RMMA index 3.5 ±events/hour. In the total group, the RMMA index decreased significantly with CPAP and MAA therapies (P < 0.05). The changes in the RMMA index with therapy did not differ significantly between CPAP and MAA (P > 0.05). The RMMA index decreased in 60% of the individuals with OSA, and the changes ranged widely, with a median of 52% and an interquartile range of 107%. CONCLUSIONS Both CPAP and MAA therapies significantly reduce SB in individuals with OSA. However, the interindividual differences in the effects of these therapies on SB are large. CLINICAL TRIAL REGISTRATION https://trialsearch.who.int (NL8516); April 08, 2020.
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Affiliation(s)
- Deshui Li
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
- Department of Clinical Neurophysiology, OLVG, Amsterdam, The Netherlands.
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University, Jinan, China.
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Boyuan Kuang
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Clinical Neurophysiology, OLVG, Amsterdam, The Netherlands
- Taikang Bybo Dental, Shanghai, China
| | | | - Nico de Vries
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Otorhinolaryngology, OLVG, Amsterdam, The Netherlands
- Faculty of Medicine and Health Sciences, Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital (UZA), Edegem, Belgium
| | - Ghizlane Aarab
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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20
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Khan SIR, Aljammaz G, Alosail LA, Almeshrafi A, Ramachandran A, Siddeeqh S, Alfadley A. Psychological Stress as a Determinant of Increased Maximum Voluntary Bite Force - A Clinical Observational Study. Cureus 2023; 15:e46106. [PMID: 37900472 PMCID: PMC10611984 DOI: 10.7759/cureus.46106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2023] [Indexed: 10/31/2023] Open
Abstract
Background Psychological stress is a known risk factor and modulator for several oral diseases. It is among the critical etiological factors of bruxism and several other disorders. The quantum of bite force is one of the prime determinants of wear resistance and the clinical performance of restorations. Thus, the present study aims to investigate the relationship between the maximum voluntary bite force (MVBF) and the amount of perceived stress experienced by an individual. Materials and methods Patients (n=111) fulfilling the exclusion and inclusion criteria were divided into high, medium, and low-stress groups based on their stress scores deduced from the Perceived Stress Scale questionnaire (PSS). Bite force measurement was recorded in Newtons (N) for each subject using a portable customized bite recording FlexiForce sensor (B 201). The data were analyzed using Kruskal-Wallis and independent samples t-test. Results Among the females, the bite force in the medium and high-stress groups was greater compared to the low-stress level group. On the other hand, there was no difference in bite force between any of the stress level groups among male participants. Conclusion The results show that higher MVBF is associated with higher perceived stress scores in adult females. Practical Implications Psychological counseling can be included in the dental treatment plan of individuals with a high-stress score to counteract their stress-related higher occlusal forces, parafunctional jaw movements, and risky oral health behaviors, thereby potentially reducing the incidence of adverse outcomes such as temporomandibular joint dysfunction and restoration failure by careful choice of restorative materials.
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Affiliation(s)
- Sulthan Ibrahim R Khan
- Department of Restorative and Prosthetic Dental Sciences, King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Ghaida Aljammaz
- Endodontics, King Abdulaziz Medical City - National Guard Health Affairs, Riyadh, SAU
| | - Lama A Alosail
- Periodontics, King Abdulaziz Medical City - National Guard Health Affairs, Riaydh, SAU
| | - Azzam Almeshrafi
- Periodontics, King Abdullah International Medical Research Centre, Riyadh, SAU
| | - Anupama Ramachandran
- Conservative Dentistry and Endodontics, Chettinad Dental College and Research Institute, Chennai, IND
| | - Salman Siddeeqh
- Maxillofacial Surgery and Diagnostic Sciences, King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Abdulmohsen Alfadley
- Endodontics, Restorative and Prosthetic Dental Sciences, King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
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21
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Costa FDS, Fernandez MDS, Silva-Junior IFD, Karam SA, Chisini LA, Goettems ML. Association Involving Possible Sleep Bruxism, Stress, and Depressive Symptoms in Brazilian University Students: A Cross-sectional Study. Sleep Sci 2023; 16:e317-e322. [PMID: 38196771 PMCID: PMC10773504 DOI: 10.1055/s-0043-1772808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 12/05/2022] [Indexed: 01/11/2024] Open
Abstract
The aim of the present study was to examine the association regarding sleep bruxism (SB), depression, and stress in Brazilian university students. We conducted a cross-sectional study with a large-sample of university students ( n = 2,089) in the city of Pelotas, Rio Grande do Sul, Southern Brazil. A self-administered questionnaire was sent to classrooms to evaluate socioeconomic and demographic characteristics. Possible SB was detected by self-report according to the International Consensus on The Assessment of Bruxism Criteria (2018). The Patient Health Questionnaire-9 and the Perceived Stress Scale were used to assess depression and stress symptoms respectively. Crude and adjusted Poisson regression analyses were performed. The prevalence of possible SB, high level of stress, and depressive symptoms in the sample were of 20.4%, 16.6%, and 16.6% respectively. Stress in female students was significantly associated with an increased prevalence of possible SB, but not in male students. Regarding depression, the prevalence of SB was 28% higher in students with depressive symptoms. Students with stress or depression had a 35% higher prevalence of SB than those without any symptoms. Conclusion The findings have shown that university students with stress and depressive symptoms were more likely to be detected with possible SB.
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Affiliation(s)
- Francine dos Santos Costa
- Centro de Ciências Biológicas e da Saúde, Universidade do Vale do Taquari, Vale do Taquari, Rio Grande do Sul, Brazil
| | | | - Ivan Freire da Silva-Junior
- Programa de Pós-gradução em Odontologia, Faculdade de Odontologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Sarah Arangurem Karam
- Programa de Pós-gradução em Odontologia, Faculdade de Odontologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Luiz Alexandre Chisini
- Centro de Ciências Biológicas e da Saúde, Universidade do Vale do Taquari, Vale do Taquari, Rio Grande do Sul, Brazil
| | - Marília Leão Goettems
- Faculdade de Odontologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
- Programa de Pós-gradução em Odontologia, Faculdade de Odontologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
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Ning R, Chen J, Lu Y, Guo J. Obstructive sleep apnea: a follow-up program in its relation to temporomandibular joint disorder, sleep bruxism and orofacial pain. BMC Oral Health 2023; 23:578. [PMID: 37598191 PMCID: PMC10440039 DOI: 10.1186/s12903-023-03264-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/28/2023] [Indexed: 08/21/2023] Open
Abstract
OBJECTIVE To evaluate the correlation between obstructive sleep apnea (OSA) and temporomandibular joint (TMJ) morphology, tooth wear condition, orofacial pain through a follow-up program. MATERIALS AND METHODS Seventy one OSA patients were divided into three groups according to their (apnea hypopnea index) AHI: mild group (n = 23), moderate group (n = 24), and severe group (n = 24). All patients had OSA therapies around six months after confirm the diagnosis of OSA. The tooth wear score and orofacial pain condition of all patients were recorded via clinical examination. Cone beam computed tomography (CBCT) images were also taken when confirm the diagnosis of OSA (T0), 6 months after the diagnosis (T1), and 6 months after the OSA treatment (T2). Parameters indicating the condylar morphology and joint space were evaluated. The differences of clinical symptoms and TMJ conditions among T0, T1 and T2 time point were detected in the three groups respectively. The changes in T1-T0 and T2-T1 of all descriptions among three groups were also compared. The correlations between AHI and clinical symptoms were detected with Spearman correlation analysis. RESULTS In mild group, there was no difference in all clinical symptoms and TMJ morphology among the three time points. Both in moderate and severe group, the condylar volume, superficial area, wear score, visual analogue scales (VAS), and R value (indicating condyle position) displayed significant differences among the three time points (P < 0.05). From T0 to T1, mild group displayed fewer decreases in the condylar volume and superficial area and fewer increases in wear score than that in moderate and severe group (P < 0.05). From T1 to T2, there was a greatest reduction in severe group for R value, and significant difference in the description of VAS and R value were found among the three groups. AHI was negatively correlated condylar volume and condylar superficial area, and was positively correlated with tooth wear score and VAS (P < 0.05). CONCLUSION Moderate to severe OSA will aggravate orofacial pain and tooth wear, affect TMJ volume and superficial area, even change the location of condyles. Appropriate OSA therapies may be effective ways to alleviate these adverse effects in long-term.
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Affiliation(s)
- Ruoyu Ning
- Department of Orthodontics, Xiangya Stomatological Hospital & Xiangya School of Stomatology, Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Central South University, 72 Xiangya Road, Changsha, 410000, Hunan, China
- Third Xiangya Hospital & Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Junjie Chen
- Department of Orthodontics, Xiangya Stomatological Hospital & Xiangya School of Stomatology, Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Central South University, 72 Xiangya Road, Changsha, 410000, Hunan, China
| | - Yanqin Lu
- Department of Orthodontics, Xiangya Stomatological Hospital & Xiangya School of Stomatology, Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Central South University, 72 Xiangya Road, Changsha, 410000, Hunan, China
| | - Jing Guo
- Engineering Laboratory for Biomaterials and Tissue Regeneration, Ningbo Stomatological Hospital, Zhejiang, China.
- Savaid Stomatology School, Hangzhou Medical College, 435 Xinxing Road, Ningbo, 315000, Zhejiang, China.
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Cheeloo College of Medicine, Jinan, China.
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Khan M. Restless Legs Syndrome and Other Common Sleep-Related Movement Disorders. Continuum (Minneap Minn) 2023; 29:1130-1148. [PMID: 37590826 DOI: 10.1212/con.0000000000001269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
OBJECTIVE This article reviews common sleep-related movement disorders, including their clinical description, epidemiology, pathophysiology (if known), and evaluation and management strategies. This article will provide the reader with a good foundation for approaching concerns that are suggestive of sleep-related movement disorders to properly evaluate and manage these conditions. LATEST DEVELOPMENTS α2δ Ligands, such as gabapentin enacarbil, can be used for the initial treatment of restless legs syndrome (RLS) or in those who cannot tolerate, or have developed augmentation to, dopamine agonists. Another option is the rotigotine patch, which has a 24-hour treatment window and may be beneficial for those who have developed augmentation with short-acting dopamine agonists. IV iron can improve RLS symptoms even in those whose serum ferritin level is between 75 ng/mL and 100 ng/mL. At serum ferritin levels greater than 75 ng/mL, oral iron will likely have minimal absorption or little effect on the improvement of RLS. Research has found an association between RLS and cardiovascular disease, particularly in people who have periodic limb movements of sleep. ESSENTIAL POINTS RLS is the most common sleep-related movement disorder. Its pathophysiology is likely a combination of central iron deficiency, dopamine overproduction, and possibly cortical excitation. Treatment includes oral or IV iron. Dopaminergic medications can be very effective but often lead to augmentation, which limits their long-term use. Other sleep-related movement disorders to be aware of are sleep-related rhythmic movement disorder, nocturnal muscle cramps, sleep-related propriospinal myoclonus, sleep bruxism, and benign myoclonus of infancy.
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Yin J, Xu J, Ren TL. Recent Progress in Long-Term Sleep Monitoring Technology. BIOSENSORS 2023; 13:395. [PMID: 36979607 PMCID: PMC10046225 DOI: 10.3390/bios13030395] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/11/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
Sleep is an essential physiological activity, accounting for about one-third of our lives, which significantly impacts our memory, mood, health, and children's growth. Especially after the COVID-19 epidemic, sleep health issues have attracted more attention. In recent years, with the development of wearable electronic devices, there have been more and more studies, products, or solutions related to sleep monitoring. Many mature technologies, such as polysomnography, have been applied to clinical practice. However, it is urgent to develop wearable or non-contacting electronic devices suitable for household continuous sleep monitoring. This paper first introduces the basic knowledge of sleep and the significance of sleep monitoring. Then, according to the types of physiological signals monitored, this paper describes the research progress of bioelectrical signals, biomechanical signals, and biochemical signals used for sleep monitoring. However, it is not ideal to monitor the sleep quality for the whole night based on only one signal. Therefore, this paper reviews the research on multi-signal monitoring and introduces systematic sleep monitoring schemes. Finally, a conclusion and discussion of sleep monitoring are presented to propose potential future directions and prospects for sleep monitoring.
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Affiliation(s)
- Jiaju Yin
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Jiandong Xu
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Tian-Ling Ren
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
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Li D, Kuang B, Lobbezoo F, de Vries N, Hilgevoord A, Aarab G. Sleep bruxism is highly prevalent in adults with obstructive sleep apnea: a large-scale polysomnographic study. J Clin Sleep Med 2023; 19:443-451. [PMID: 36448332 PMCID: PMC9978428 DOI: 10.5664/jcsm.10348] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 12/05/2022]
Abstract
STUDY OBJECTIVES The aim was to determine the prevalence and risk factors of sleep bruxism (SB) and to investigate the relationships between SB episodes, arousals, and respiratory events in adults with obstructive sleep apnea (OSA). METHODS This prospective study included 914 adults with OSA (305 females, 609 males; age = 53 years [interquartile range = 17]; apnea-hypopnea index = 13.9 events/h [interquartile range = 21]). The diagnosis of SB was made when the rhythmic masticatory muscle activity (RMMA) index was at least 2 episodes/h of sleep based on a full polysomnographic recording. Binary logistic regression was performed to identify risk factors for SB. Network analysis was performed to determine the relations between RMMA, respiratory event, sleep arousal, and other factors. Further, the percentage of RMMA time-related to arousal was calculated. RESULTS The prevalence of SB in adults with OSA was 49.7%. Male sex, lower body mass index, and higher percentage of N1 sleep increased the odds of having SB (odds ratios = 1.425, 0.951, and 1.032, respectively; all P < .05). Network analysis showed that there were no direct associations between RMMA and apnea-hypopnea index, nor between RMMA and arousal, although 85.7% of RMMA was time-related to arousals. CONCLUSIONS Nearly half of adults with OSA have comorbid SB. Male sex, lower body mass index, and a higher percentage of light sleep increase the risk of having SB. Although RMMAs do not directly correlate with respiratory events and arousals, most RMMAs are time-related to arousals in adults with OSA. CLINICAL TRIAL REGISTRATION Registry: Netherlands Trial Register; Name: A Large Sample Polysomnographic Study on Sleep Bruxism; URL: https://trialsearch.who.int/Trial2.aspx?TrialID=NL8516; Identifier: NL8516. CITATION Li D, Kuang B, Lobbezoo F, de Vries N, Hilgevoord A, Aarab G. Sleep bruxism is highly prevalent in adults with obstructive sleep apnea: a large-scale polysomnographic study. J Clin Sleep Med. 2023;19(3):443-451.
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Affiliation(s)
- Deshui Li
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Clinical Neurophysiology, OLVG West, Amsterdam, The Netherlands
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University, Jinan, China
| | - Boyuan Kuang
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Clinical Neurophysiology, OLVG West, Amsterdam, The Netherlands
- Taikang Bybo Dental, Shanghai, China
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Nico de Vries
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Otorhinolaryngology, OLVG West, Amsterdam, The Netherlands
- Faculty of Medicine and Health Sciences, Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Antonius Hilgevoord
- Department of Clinical Neurophysiology, OLVG West, Amsterdam, The Netherlands
| | - Ghizlane Aarab
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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26
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Beddis HP, Davies SJ. Relationships between tooth wear, bruxism and temporomandibular disorders. Br Dent J 2023; 234:422-426. [PMID: 36964364 DOI: 10.1038/s41415-023-5584-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 03/26/2023]
Abstract
This article will provide an overview of the diagnosis of common temporomandibular disorders (TMDs) and bruxism, along with their relevance in management of tooth wear. When assessing and managing a tooth wear case, the teeth should not be considered in isolation, but as part of the articulatory system, which has three inter-related elements: the teeth, the temporomandibular joints and the masticatory muscles. The presence/absence of bruxism and TMD are highly relevant, although there may not be a causal relationship between these. A consideration of TMD and bruxism, together with the potential impact these may have on the patient during and after any management of tooth wear, will form part of patient education and the informed consent process.
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Affiliation(s)
- Hannah P Beddis
- Restorative Department, Leeds Dental Institute, Clarendon Way, Leeds, LS2 9LU, UK.
| | - Stephen J Davies
- University of Manchester, TMD Clinic, Manchester University Dental School, Higher Cambridge Street, Manchester, M15 6FH, UK
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27
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Huang Z, Zhou N, Chattrattrai T, van Selms MKA, de Vries R, Hilgevoord AAJ, de Vries N, Aarab G, Lobbezoo F. Associations between snoring and dental sleep conditions: A systematic review. J Oral Rehabil 2023; 50:416-428. [PMID: 36691754 DOI: 10.1111/joor.13422] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 11/06/2022] [Accepted: 01/13/2023] [Indexed: 01/25/2023]
Abstract
BACKGROUND It is important for dentists to know if the presence of snoring is associated with the presence of other dental sleep conditions (e.g. obstructive sleep apnea [OSA], sleep bruxism [SB], gastroesophageal reflux disease [GERD], xerostomia and oro-facial pain). If so, dentists could play a significant role in the early recognition and management of these conditions. OBJECTIVES This systematic review aimed to: (i) investigate the associations between the presence of snoring and the presence of other dental sleep conditions; and (ii) determine if it is clinically relevant that dentists assess snoring in their population. METHODS The literature search was performed in PubMed and Embase.com in collaboration with a medical librarian. Studies were eligible if they employed regression models to assess whether snoring was associated with other dental sleep conditions, and/or investigated the incidence of snoring in patients with other dental sleep conditions and vice versa. RESULTS Of the 5299 retrieved references, 36 eligible studies were included. The available evidence indicates that the presence of snoring is associated with higher probabilities of OSA, GERD and headache. Due to limited evidence and conflicting findings, the currently available articles are not indicative of associations between the presence of snoring and the presence of SB and oral dryness. CONCLUSION Within the limitations of this study, it can be concluded that the presence of snoring is associated with higher probabilities of OSA, GERD and headache. Therefore, it is clinically relevant that dentists assess snoring in their patient population.
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Affiliation(s)
- Zhengfei Huang
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Clinical Neurophysiology, OLVG, Amsterdam, The Netherlands
| | - Ning Zhou
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Amsterdam UMC location University of Amsterdam, Department of Oral and Maxillofacial Surgery, University of Amsterdam, Amsterdam, The Netherlands.,Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Thiprawee Chattrattrai
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maurits K A van Selms
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Ralph de Vries
- Medical Library, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | | | - Nico de Vries
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Otorhinolaryngology - Head and Neck Surgery, OLVG, Amsterdam, The Netherlands.,Department of Otorhinolaryngology - Head and Neck Surgery, Antwerp University Hospital (UZA), Antwerp, Belgium
| | - Ghizlane Aarab
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Okura M, Kato T, Mashita M, Muraki H, Sugita H, Ohi M, Taniguchi M. Relationships between respiratory and oromotor events differ between motor phenotypes in patients with obstructive sleep apnea. Front Neurol 2023; 14:1150477. [PMID: 37025207 PMCID: PMC10071011 DOI: 10.3389/fneur.2023.1150477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/02/2023] [Indexed: 04/08/2023] Open
Abstract
Purpose The present study investigated the relationship between sleep bruxism (SB) and obstructive sleep apnea (OSA) in relation to the sleep architecture. Methods We conducted a cross-sectional study. Polysomnographic recordings were performed on 36 patients. Sleep, respiratory, and oromotor variables, such as rhythmic masticatory muscle activity (RMMA) and non-specific masticatory muscle activity (NSMA), were compared between OSA patients with or without SB. A correlation analysis of the frequency of respiratory and oromotor events in NREM and REM sleep was performed. The frequency of oromotor events following respiratory events was also assessed. Results The proportion of REM sleep was higher in OSA patients with SB than in those without SB (p = 0.02). The apnea-hypopnea index (AHI) did not significantly differ between the two groups; however, AHI was approximately 8-fold lower during REM sleep in OSA patients with SB (p = 0.01) and the arousal threshold was also lower (p = 0.04). Although the RMMA index was higher in OSA patients with than in those without SB (p < 0.01), the NSMA index did not significantly differ. The percentage of RMMA following respiratory events was significantly higher in OSA patients with than in those without SB, whereas that of NSMA did not significantly differ. The frequency of oromotor events throughout the whole night positively correlated with AHI. However, regardless of the sleep state, AHI did not correlate with the RMMA index, but positively correlated with the NSMA index. Conclusion In consideration of the limitations of the present study, the results obtained indicate that OSA patients with SB have a unique phenotype of OSA and also emphasize the distinct relationship of respiratory events with RMMA and NSMA.
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Affiliation(s)
- Mutsumi Okura
- Department of Oral Physiology, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
- Sleep Medical Center, Osaka Kaisei Hospital, Osaka, Japan
- Center for Sleep Medicine, Asahi University Hospital, Gifu, Japan
| | - Takafumi Kato
- Department of Oral Physiology, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
- *Correspondence: Takafumi Kato,
| | - Midori Mashita
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hisae Muraki
- Sleep Medical Center, Osaka Kaisei Hospital, Osaka, Japan
- Center for Sleep Medicine, Asahi University Hospital, Gifu, Japan
| | - Hideko Sugita
- Sleep Medical Center, Osaka Kaisei Hospital, Osaka, Japan
| | - Motoharu Ohi
- Sleep Medical Center, Osaka Kaisei Hospital, Osaka, Japan
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Frosztega W, Wieckiewicz M, Nowacki D, Michalek-Zrabkowska M, Poreba R, Wojakowska A, Kanclerska J, Mazur G, Martynowicz H. Polysomnographic Assessment of Effects of Tobacco Smoking and Alcohol Consumption on Sleep Bruxism Intensity. J Clin Med 2022; 11:7453. [PMID: 36556069 PMCID: PMC9785944 DOI: 10.3390/jcm11247453] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/07/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Background: Sleep bruxism (SB) is a common sleep-related movement behavior with a complex etiology. A recent hypothesis suggests psychoactive substance usage, tobacco smoking, and alcohol intake are risk factors for SB. This study aimed to evaluate SB intensity in tobacco smokers and alcohol drinkers. Methods: A total of 133 adults underwent full-night audio- and video-polysomnography, and the polysomnograms were evaluated using the American Academy of Sleep Medicine guidelines. The study group was divided into smoker and nonsmoker groups as well as drinker and non-drinker groups. Results: The results of the polysomnographic analysis confirmed that tobacco smoking has a significant effects on SB. Tobacco smokers showed increased bruxism intensity (5.50 ± 4.71 vs. 3.83 ± 3.26, p < 0.05), especially the mixed phenotype (0.93 ± 1.00 vs. 0.59 ± 0.59, p < 0.05), in the N1 sleep stage (22.84 ± 20.45 vs. 15.66 ± 13.60, p < 0.05) and the nonsupine position (4.93 ± 5.56 vs. 2.50 ± 2.31, p < 0.05). They also showed a higher number of bruxism episodes with arousal compared with nonsmokers (2.91 ± 2.83 vs. 1.61 ± 1.49, p < 0.05), indicating increased sleep fragmentation. However, no significant effect of alcohol on SB intensity was observed, and the bruxism episode index was similar in alcohol drinkers and nondrinkers. In addition, electrolyte disturbances and lipid disorders were evaluated. Compared with nonsmokers, tobacco smokers showed a higher concentration of plasma triglycerides (177.67 ± 106.9 vs. 129.18 ± 65.61) and lower levels of iron and magnesium (96.68 ± 43.58 vs. 123.83 ± 52.36 and 1.85 ± 0.22 vs. 1.96 ± 0.21, respectively). Conclusions: In summary, this study showed that tobacco smoking, but not alcohol consumption, is related to bruxism intensity and lipid and electrolyte disturbances in individuals with sleep disorders.
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Affiliation(s)
- Weronika Frosztega
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Mieszko Wieckiewicz
- Department of Experimental Dentistry, Wroclaw Medical University, 26 Krakowska St., 50-425 Wroclaw, Poland
| | - Dorian Nowacki
- Department of Human Nutrition, Wroclaw University of Environmental and Life Sciences, 37 Chelmonskiego St., 51-630 Wroclaw, Poland
| | - Monika Michalek-Zrabkowska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Rafal Poreba
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Anna Wojakowska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Justyna Kanclerska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Grzegorz Mazur
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Helena Martynowicz
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
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30
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Minakuchi H, Fujisawa M, Abe Y, Iida T, Oki K, Okura K, Tanabe N, Nishiyama A. Managements of sleep bruxism in adult: A systematic review. JAPANESE DENTAL SCIENCE REVIEW 2022; 58:124-136. [PMID: 35356038 PMCID: PMC8958360 DOI: 10.1016/j.jdsr.2022.02.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 10/24/2021] [Accepted: 02/20/2022] [Indexed: 01/11/2023] Open
Abstract
This systematic review aimed to update the management of sleep bruxism (SB) in adults, as diagnosed using polysomnography (PSG) and/or electromyography (EMG). Management methods covered were oral appliance therapy (OAT) with stabilization splints, cognitive-behavioral therapy (CBT), biofeedback therapy (BFT), and pharmacological therapy. A comprehensive search was conducted on MEDLINE, Cochrane Library, and Web of Science up to October 1st, 2021. Reference list searches and hand searches were also performed by an external organization. Two reviewers for each therapy independently performed article selection, data extraction, and risk of bias assessment. The reviewers resolved any disagreements concerning the assortment of the articles by discussion. Finally, 11, 3, 14, and 22 articles were selected for each therapy. The results suggested that OAT tended to reduce the number of SB events, although there was no significant difference compared to other types of splints, that the potential benefits of CBT were not well supported, and that BFT, rabeprazole, clonazepam, clonidine, and botulinum toxin type A injection showed significant reductions in specific SB parameters, although several side effects were reported. It can be concluded that more methodologically rigorous randomized large-sample long-term follow-up clinical trials are needed to clarify the efficacy and safety of management for SB.
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Key Words
- AB, awake bruxism
- BFT, biofeedback therapy
- BTX-A, botulinum toxin type A
- Biofeedback therapy
- CCT, controlled clinical trial
- CES, contingent electrical stimulation
- CQ, clinical question
- CTB, cognitive-behavioral therapy
- Cognitive–behavioral therapy
- EMG, electromyography
- GRADE, Grading of Recommendations, Assessment, Development and Evaluations
- Management
- OA, oral appliance
- OAT, oral appliance therapy
- Oral appliances
- PICO, participant, intervention, comparison, and outcome
- PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses
- PSG, polysomnography
- Pharmacological therapy
- RCT, randomized controlled trial
- RMMA, rhythmic masticatory muscle activity
- SB, sleep bruxism
- Sleep bruxism
- Systematic review
- TMD, temporomandibular disorders
- TMJ, temporomandibular joint
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Affiliation(s)
- Hajime Minakuchi
- Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Masanori Fujisawa
- Division of Fixed Prosthodontics, Department of Restorative & Biomaterials Sciences, Meikai University School of Dentistry, Japan
| | - Yuka Abe
- Department of Prosthodontics, School of Dentistry, Showa University, Japan
| | - Takashi Iida
- Department of Oral Function and Fixed Prosthodontics, Nihon University School of Dentistry at Matsudo, Japan
| | - Kyosuke Oki
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Japan
| | - Kazuo Okura
- Department of Stomatognathic Function and Occlusal Reconstruction, Institute of Biomedical Sciences, Tokushima University Graduate School, Japan
| | - Norimasa Tanabe
- Department of Prosthodontics and Oral Implantology, School of Dentistry, Iwate Medical University, Japan
| | - Akira Nishiyama
- General Dentistry, Comprehensive Patient Care, Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
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Huang Z, Aarab G, Chattrattrai T, Su N, Volgenant CMC, Hilgevoord AAJ, de Vries N, Lobbezoo F. Associated factors of primary snoring and obstructive sleep apnoea in patients with sleep bruxism: A questionnaire study. J Oral Rehabil 2022; 49:970-979. [PMID: 35789500 PMCID: PMC9543241 DOI: 10.1111/joor.13354] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND By being aware of the associated factors of primary snoring (PS) and obstructive sleep apnoea (OSA) in sleep bruxism (SB) patients, dentists may contribute to the screening and early recognition of SB patients with PS or OSA. OBJECTIVE To identify the associated factors of PS and OSA from questionnaire-based data in SB patients. METHODS A total of 968 self-reported SB patients (31.6% men; median age 44.5 years) were retrospectively enrolled. Self-reported sleep-related breathing status (viz., no sleep-related breathing condition, PS and OSA) was the dependent variable. Independent variables were questionnaire-based data on demographics, lifestyle, psychological status, pain and sleep. RESULTS For PS, no statistically significant associated factor was identified in analyses. For OSA, increased age (OR = 1.04 [1.03-1.06]), male gender (OR = 3.33 [2.17-5.00]), daily alcohol consumption (OR = 1.96 [1.18-3.33]), depression (OR = 1.10 [1.06-1.14]), daytime sleepiness (OR = 2.94 [1.85-4.76]) and high risk of gastroesophageal reflux disease (GERD; OR = 2.63 [1.52-4.76]) were found to be significant risk factors, while high risk of temporomandibular disorder (TMD) pain (OR = 0.51 [0.30-0.86]) and chronic pain (OR = 0.73 [0.59-0.90]) were significant protective factors. These results were confirmed in the subsequent network analysis. CONCLUSION Within the limitations of this study, no associated factor is identified for PS. For OSA, dentists should keep in mind that increased age, male gender, daily alcohol consumption, depression, daytime sleepiness and high GERD risk are associated with increased OSA risk in SB patients, while high TMD-pain risk and chronic pain are associated with decreased OSA risk in this population.
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Affiliation(s)
- Zhengfei Huang
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Department of Clinical NeurophysiologyOLVGAmsterdamThe Netherlands
| | - Ghizlane Aarab
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Thiprawee Chattrattrai
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Naichuan Su
- Department of Oral Public Health, Academic Center for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Catherine M. C. Volgenant
- Department of Preventive Dentistry, Academic Center for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | | | - Nico de Vries
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Department of Otorhinolaryngology ‐ Head and Neck SurgeryOLVGAmsterdamThe Netherlands
- Department of Otorhinolaryngology ‐ Head and Neck SurgeryAntwerp University Hospital (UZA)AntwerpBelgium
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Center for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdamThe Netherlands
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Frange C, Franco AM, Brasil E, Hirata RP, Lino JA, Mortari DM, Ykeda DS, Leocádio-Miguel MA, D’Aurea CVR, Silva LOE, Telles SCL, Furlan SF, Peruchi BB, Leite CF, Yagihara FT, Campos LD, Ulhôa MA, Cruz MGDR, Beidacki R, Santos RB, de Queiroz SS, Barreto S, Piccin VS, Coelho FMS, Studart L, Assis M, Drager LF. Practice recommendations for the role of physiotherapy in the management of sleep disorders: the 2022 Brazilian Sleep Association Guidelines. Sleep Sci 2022; 15:515-573. [PMID: 36419815 PMCID: PMC9670776 DOI: 10.5935/1984-0063.20220083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 09/19/2022] [Indexed: 08/13/2024] Open
Abstract
This clinical guideline supported by the Brazilian Sleep Association comprises a brief history of the development of Brazilian sleep physiotherapy, outlines the role of the physiotherapist as part of a sleep health team, and describes the clinical guidelines in respect of the management of some sleep disorders by the physiotherapist (including sleep breathing disorders, i.e., obstructive sleep apnea, central sleep apnea, upper airway resistance syndrome, hypoventilation syndromes and overlap syndrome, and pediatric sleep breathing disorders; sleep bruxism; circadian rhythms disturbances; insomnia; and Willis-Ekbom disease/periodic limb movement disorder. This clinical practice guideline reflects the state of the art at the time of publication and will be reviewed and updated as new information becomes available.
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Affiliation(s)
- Cristina Frange
- Departamento de Neurologia e Neurocirurgia, Escola Paulista de
Medicina (EPM), Universidade Federal de São Paulo (UNIFESP) - São
Paulo - SP - Brazil
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
| | - Aline Marques Franco
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Departamento de Neurociências e Ciências do
Comportamento, Faculdade de Medicina de Ribeirão Preto, Universidade de
São Paulo (FMRP-USP) - Ribeirão Preto - SP - Brazil
| | - Evelyn Brasil
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Departamento de Terapia Intensiva, Hospital Israelita Albert
Einstein (HIAE) - São Paulo - SP - Brazil
| | - Raquel Pastrello Hirata
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Laboratório de Pesquisa em Fisioterapia Pulmonar,
Departamento de Fisioterapia, Universidade Estadual de Londrina (UEL) - Londrina -
PR - Brazil
| | - Juliana Arcanjo Lino
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Ciências Médicas, Universidade Federal do
Ceará (UFC) - Fortaleza - CE - Brazil
| | - Daiana Moreira Mortari
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Universidade Federal do Rio Grande do Sul - Porto Alegre - RS -
Brazil
| | - Daisy Satomi Ykeda
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Curso de Fisioterapia, Universidade Estadual do Piauí
(UESPI) - Teresina - PI - Brazil
| | - Mario André Leocádio-Miguel
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Departamento de Fisiologia e Comportamento, Universidade Federal do
Rio Grande do Norte - Natal - RN - Brazil
| | | | - Luciana Oliveira e Silva
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Departamento de Ciências da Saúde, Universidade
Federal de Uberlândia (UFU) - Uberlândia - MG - Brazil
| | | | - Sofia Fontanello Furlan
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Unidade de Hipertensão, Instituto do Coração
(InCor), Faculdade de Medicina, Universidade de São Paulo (USP) - São
Paulo - SP - Brazil
| | - Bruno Búrigo Peruchi
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Laboratório de Neurociência, Universidade do Estado
de Santa Catarina (UNESC) - Criciúma - SC - Brazil
| | - Camila Ferreira Leite
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Departamento de Fisioterapia, UFC; Programas de Mestrado em
Fisioterapia e Funcionalidade, e Mestrado em Ciências Cardiovasculares, UFC -
Fortaleza - CE - Brazil
| | - Fabiana Tokie Yagihara
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Setor de Neurofisiologia Clínica, Departamento de
Neurologia e Neurocirurgia, EPM, UNIFESP - São Paulo - SP - Brazil
| | | | - Melissa Araújo Ulhôa
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Instituto Metropolitano de Ensino Superior, Faculdade de Medicina
do Vale do Aço (UNIVAÇO) - Ipatinga - MG - Brazil
| | | | - Ricardo Beidacki
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Faculdade Inspirar, Unidade Porto Alegre - Porto Alegre - RS -
Brazil
| | - Ronaldo Batista Santos
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Departamento de Fisioterapia, Hospital Universitário, USP -
São Paulo - Brazil
| | | | - Simone Barreto
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Instituto do Sono, Associação Fundo Incentivo
à Pesquisa - São Paulo - Brazil
| | - Vivien Schmeling Piccin
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Laboratório do Sono, Divisão de Pneumologia do
Instituto do Coração (InCor), FMUSP, USP - São Paulo - SP -
Brazil
| | - Fernando Morgadinho Santos Coelho
- Departamento de Neurologia e Neurocirurgia, Escola Paulista de
Medicina (EPM), Universidade Federal de São Paulo (UNIFESP) - São
Paulo - SP - Brazil
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Departamento de Psicobiologia, EPM, UNIFESP - São Paulo -
SP - Brazil
| | - Luciana Studart
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Universidade Federal de Pernambuco - Recife - PE - Brazil
| | - Marcia Assis
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Clínica do Sono de Curitiba, Hospital São Lucas -
Curitiba - PR - Brazil
| | - Luciano F. Drager
- Associação Brasileira do Sono - São Paulo - SP
- Brazil
- Unidade de Hipertensão, Instituto do Coração
(InCor), Faculdade de Medicina, Universidade de São Paulo (USP) - São
Paulo - SP - Brazil
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Kazubowska-Machnowska K, Jodkowska A, Michalek-Zrabkowska M, Wieckiewicz M, Poreba R, Dominiak M, Gac P, Mazur G, Kanclerska J, Martynowicz H. The Effect of Severity of Obstructive Sleep Apnea on Sleep Bruxism in Respiratory Polygraphy Study. Brain Sci 2022; 12:828. [PMID: 35884635 PMCID: PMC9313411 DOI: 10.3390/brainsci12070828] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/18/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023] Open
Abstract
Obstructive sleep apnea (OSA) and sleep bruxism (SB) may appear concomitantly. Data on the relationship between OSA and SB are limited. It was shown that in a population with an increased risk of OSA, OSA was dependently correlated with SB on the degree of OSA severity only in mild and moderate cases of OSA. We aimed to confirm this relationship and affecting factors in a group of dental office patients in a prospective, observational study. Adult patients (n = 119) were evaluated using respiratory polygraphy. The risk of OSA was assessed using a STOP-Bang questionnaire (SBQ). The episodes of bruxism and respiratory events were scored according to the standards of the American Academy of Sleep Medicine. The prevalence of OSA and SB was found to be 63.02% and 41.17%, respectively. The bruxism episode index (BEI) was increased in the group with a higher risk of OSA (SBQ ≥ 3) compared to the group with a lower risk of OSA (3.49 ± 3.63 vs. 2.27 ± 2.50, p = 0.03). The sensitivity and specificity of the SBQ were not sufficient to predict SB. A positive linear correlation between AHI and BEI in the group with AHI < 23/h was found. The study confirmed that OSA was associated with SB in the group of patients with OSA and/or SB risk. The relationship between OSA and SB depended on the degree of severity of OSA and occurred in mild and moderate cases of OSA.
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Affiliation(s)
| | - Anna Jodkowska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland; (A.J.); (R.P.); (G.M.); (J.K.); (H.M.)
| | - Monika Michalek-Zrabkowska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland; (A.J.); (R.P.); (G.M.); (J.K.); (H.M.)
| | - Mieszko Wieckiewicz
- Department of Experimental Dentistry, Wroclaw Medical University, 26 Krakowska St., 50-425 Wroclaw, Poland;
| | - Rafal Poreba
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland; (A.J.); (R.P.); (G.M.); (J.K.); (H.M.)
| | - Marzena Dominiak
- Department of Oral Surgery, Wroclaw Medical University, 26 Krakowska St., 50-425 Wroclaw, Poland; (K.K.-M.); (M.D.)
| | - Pawel Gac
- Department of Population Health, Division of Environmental Health and Occupational Medicine, Wroclaw Medical University, 7 Mikulicza-Radeckiego St., 50-345 Wroclaw, Poland;
| | - Grzegorz Mazur
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland; (A.J.); (R.P.); (G.M.); (J.K.); (H.M.)
| | - Justyna Kanclerska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland; (A.J.); (R.P.); (G.M.); (J.K.); (H.M.)
| | - Helena Martynowicz
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland; (A.J.); (R.P.); (G.M.); (J.K.); (H.M.)
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Polysomnographic Evaluation of Sleep Bruxism Intensity and Sleep Architecture in Nonapneic Hypertensives: A Prospective, Observational Study. J Clin Med 2022; 11:jcm11113113. [PMID: 35683499 PMCID: PMC9181472 DOI: 10.3390/jcm11113113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/22/2022] [Accepted: 05/28/2022] [Indexed: 11/24/2022] Open
Abstract
Sleep bruxism (SB) is a repetitive jaw muscle activity characterized by clenching or grinding of the teeth, which is classified under sleep-related movement disorders in the International Classification of Sleep Disorders—Third Edition. Because the potential common pathomechanism of SB and arterial hypertension is the activation of the sympathetic system as well as an increase in inflammatory factors, we aimed to examine the intensity of SB and the sleep architecture among patients with arterial hypertension. The study included a total of 91 Caucasian adult patients, among whom 31 had arterial hypertension diagnosed according to the current European Society of Cardiology/European Society of Hypertension (ESC/EHS) hypertension guidelines. The control group consisted of 61 normotensive patients. Patients with obstructive sleep apnea were excluded. A single full-night polysomnographic examination was conducted in the Sleep Laboratory, and then the results were analyzed based on the guidelines of the American Academy of Sleep Medicine. Bruxism episode index (BEI) was higher in the hypertensive group compared to normotensives. The groups also showed statistically significant differences in polysomnographic sleep indexes. Similar to BEI, arousal index, apnea–hypopnea index, and snoring were higher in hypertensives compared to normotensives. On the other hand, the mean and minimal oxygen saturation were lower in hypertensives compared to normotensives. A statistically significant positive correlation was observed between oxygen desaturation index and BEI in the hypertensive group, whereas this correlation was not statistically significant in the case of normotensives. In summary, nonapneic hypertensives had higher SB intensity, altered sleep architecture, decreased mean oxygen saturation, and increased snoring compared to normotensives. The results suggest that dental screening is necessary for patients with arterial hypertension, especially those presenting with the symptoms of SB.
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Arısan V, Bedeloğlu E, Pişkin B. Prevalence and predictors of bruxism in two university clinic patient populations with dental implants: A cross-sectional analysis. Cranio 2022:1-12. [PMID: 35522040 DOI: 10.1080/08869634.2022.2071794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To analyze the prevalence, predictors, and prosthetic complications of bruxing patients with dental implants in two tertiary clinics in Istanbul, Turkey. METHODS Patients with at least one dental implant and with a fixed prosthesis were examined for the evidence of probable bruxism. Factors that could be related to bruxism were analyzed in relation to patient-specific variables. Technical and mechanical complications were investigated. RESULTS A total of 1688 patients were analyzed. The overall rate of probable bruxism was 19.72%. Besides self-reported bruxism (p < 0.022), antidepressant use (p < 0.002), frequent headaches (p < 0.014), and observation of linea alba (p < 0.028) were the predictors for probable bruxism. Technical and mechanical complications were frequent in the probable bruxers (p < 0.05). CONCLUSION Overall prevalence of bruxism was 19.72%, and bruxism was associated with general and gender-specific predictors.
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Affiliation(s)
- Volkan Arısan
- Department of Oral Implantology, Faculty of Dentistry, Istanbul University, Capa-Beyazıt, Turkey
| | - Elçin Bedeloğlu
- Department of Oral & Maxillofacial Surgery, Faculty of Dentistry, Istanbul Aydın University, Florya, Turkey
| | - Bülent Pişkin
- Department of Prosthodontics, Faculty of Dentistry, Kapadokya University, Nevşehir, Turkey
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Associations between Bruxism, Stress, and Manifestations of Temporomandibular Disorder in Young Students. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095415. [PMID: 35564810 PMCID: PMC9102407 DOI: 10.3390/ijerph19095415] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 02/04/2023]
Abstract
Bruxism is a repetitive activity of the masticatory muscles, which determine teeth grinding or clenching, associated with rigidity, bracing, or thrusting of the mandibula. The aim of this study was to determine the prevalence of possible bruxism in 328 students attending the Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, and its associations with stress and other manifestations of the temporo-mandibular disorder. This was a questionnaire-based study to collect information on self-evaluation of bruxism presence, frequency of specific episodes, stress, anxiety, and other manifestations of temporo-mandibular disorder. Self-evaluated bruxism was identified in 39.33% from the entire study group, allowing us to define two subgroups for further analysis. Sleep bruxism was present in 16.28% of participants; awake bruxism was present in 68.99%, while 14.73% of participants presented a combined form. The main manifestation of bruxism was reported as teeth grinding. Fatigue was identified as a common clinical sign of bruxism and temporo-mandibular disorder. Group distribution analysis (Chi-Square) indicated significant associations between bruxism and stress, panic, restlessness, or increased stress during the COVID-19 pandemic (p < 0.05). Bruxism, and especially awake bruxism, has increased in prevalence among young students, and it has been associated with increased levels of stress.
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The effects of mandibular advancement appliance therapy on the sequence of jaw-closing muscle activity and respiratory events in individuals with obstructive sleep apnea. Sleep Breath 2022; 27:757-764. [DOI: 10.1007/s11325-022-02624-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/16/2022] [Accepted: 04/19/2022] [Indexed: 10/18/2022]
Abstract
Abstract
Purpose
To determine the effects of a mandibular advancement appliance (MAA) on sequences of jaw-closing muscle activity (JCMA) and apneic or hypopneic event (AHE) in individuals with obstructive sleep apnea (OSA).
Methods
Individuals with OSA were included in a secondary analysis of a randomized controlled crossover trial, in which two ambulatory polysomnographic recordings were performed: one with MAA in situ and the other without MAA. A time span of 16 s between JCMA and AHE was applied to classify JCMAs into four sequences: (1) JCMA occurs before AHE (B-type); (2) both events occur simultaneously (S-type); (3) JCMA occurs after AHE (A-type); and (4) JCMA is time-unrelated to AHE (U-type). The effects of MAA on the distribution of these sequences were analyzed by Wilcoxon signed-rank test.
Results
Among 16 individuals (10 men, mean age 51.3 ± 8.5 years) baseline apnea–hypopnea index and JCMA index were 23.8 ± 16.0 events/h and 10.8 ± 10.3 events/h, respectively. In both conditions, i.e., without and with MAA, most JCMAs were U-type (48% and 65%, respectively), followed by A-type (41% and 22%), B-type (25% and 21%), and S-type (2% and 1%). With MAA in situ, only the A-type JCMA index decreased significantly (P = 0.005), while B-type, S-type, and U-type JCMA indices did not change significantly (all P > 0.05).
Conclusion
MAA therapy only significantly reduces the jaw-closing muscle activities that occur after apneic or hypopneic events in individuals with OSA.
Trial registration
www.clinicaltrials.gov (NCT02011425); December 13, 2013.
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Saczuk K, Lapinska B, Wawrzynkiewicz A, Witkowska A, Arbildo-Vega HI, Domarecka M, Lukomska-Szymanska M. Temporomandibular Disorders, Bruxism, Perceived Stress, and Coping Strategies among Medical University Students in Times of Social Isolation during Outbreak of COVID-19 Pandemic. Healthcare (Basel) 2022; 10:740. [PMID: 35455915 PMCID: PMC9028346 DOI: 10.3390/healthcare10040740] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 02/01/2023] Open
Abstract
The COVID-19 pandemic caught universities along with their students off-guard, enforcing online education. Fear of the unknown, disinformation, and isolation resulted in an increased stress level in the entire population. Medical university students are particularly endangered with high stress levels and developing TMD. Temporomandibular disorders (TMD) are of multifactorial etiology, and manifest with jaw dysfunction, masticatory muscle tension or pain, as well as headache. Though bruxism can act as an exacerbating factor for TMD, stress can also play crucial role in the onset. The study aimed to measure occurrence of TMD and bruxism symptoms in the medical student population, asses the stress level, and evaluate adopted stress-coping strategies during the COVID-19 pandemic outbreak. A survey study was performed among 1018 students at Medical University of Lodz during April 2020. A self-designed questionnaire for screening TMD and bruxism symptoms, Perceived Stress Scale (PSS-10), and Brief-COPE questionnaires were applied. TMD and bruxism symptoms were observed in the majority of subjects during social isolation. The perceived stress levels were significantly higher in those experiencing TMD and bruxism symptoms. Mostly maladaptive, emotion-focused coping strategies were chosen by study subjects experiencing high levels of stress. Choosing Self-Blaming as a coping strategy is the strongest predictor of perceived stress.
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Affiliation(s)
- Klara Saczuk
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland; (K.S.); (B.L.); (M.D.)
| | - Barbara Lapinska
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland; (K.S.); (B.L.); (M.D.)
| | - Adam Wawrzynkiewicz
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, 90-419 Lodz, Poland;
| | | | - Heber Isac Arbildo-Vega
- Department of General Dentistry, Dentistry School, Universidad San Martín de Porres, Chiclayo 14012, Peru;
- Department of Human Medicine, Human Medicine School, Universidad San Martín de Porres, Chiclayo 14012, Peru
- Department of General Dentistry, Dentistry School, Universidad Particular de Chiclayo, Chiclayo 14012, Peru
- Department of Stomatology, School of Stomatology, Universidad Alas Peruanas, Lima 15072, Peru
| | - Monika Domarecka
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland; (K.S.); (B.L.); (M.D.)
| | - Monika Lukomska-Szymanska
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland; (K.S.); (B.L.); (M.D.)
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Retrospective Study Comparing Clinical Outcomes of Fixed Dental Prostheses in Matched Groups of Bruxer and Nonbruxer Patients. Int J Dent 2022; 2022:6818170. [PMID: 35386548 PMCID: PMC8977310 DOI: 10.1155/2022/6818170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/12/2022] [Indexed: 02/03/2023] Open
Abstract
Background Tooth-supported fixed dental prosthesis (FDP) is one of the most reliable treatment options to replace missing teeth. The longevity of the treatment could, however, be affected by several general and local factors, especially bruxism. Objective To investigate the influence of bruxism on the long-term survival of tooth-supported FDPs in bruxers compared to a matched group of nonbruxers, taking several clinical variables into account. Materials and Methods The present retrospective cohort study was based on records of patients treated with 3–7-unit tooth-supported FDPs with a minimum follow-up time of 6 months after prosthesis delivery. The criteria for the diagnosis of “possible” and “probable” sleep or awake bruxism were used. A matched group of nonbruxers was selected on the basis of similarities in four factors, patients' gender and age, number of prosthetic units of the FDPs, and follow-up time. The paired-samples t-test or Wilcoxon signed rank test were used to compared mean values between the two groups. Contingency tables of categorical data were analyzed by McNemar's test. Results The cohort group consisted of 62 noncantilevered FDPs in each group, followed up for a mean of 110.1 and 106.5 months (bruxers and nonbruxers, respectively). Tooth-supported FDPs in bruxers presented significantly higher failure rate than in nonbruxers (32.3% vs. 25.8%, respectively; p = 0.001). Loss of retention and tooth loss were the main reasons for failures in both groups. For nonsmokers, the FDP failure rate was higher in nonbruxers. Technical and biological complications were significantly more prevalent in bruxers compared to nonbruxers. Conclusions Bruxism is suggested to increase technical and biological complications and FDP failure.
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Chattrattrai T, Blanken TF, Lobbezoo F, Su N, Aarab G, Van Someren EJW. A network analysis of self-reported sleep bruxism in the Netherlands Sleep Registry: its associations with insomnia and several demographic, psychological, and life-style factors. Sleep Med 2022; 93:63-70. [DOI: 10.1016/j.sleep.2022.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/13/2022] [Accepted: 03/21/2022] [Indexed: 10/18/2022]
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Emodi-Perlman A, Soliman J, Frideman-Rubin P, Eli I. Symptoms of Nocturnal Masticatory Muscle Activity among Women of Different Age Groups and Their Association to Obstructive Sleep Apnea-A Cross Sectional Study. J Clin Med 2022; 11:jcm11051199. [PMID: 35268290 PMCID: PMC8911247 DOI: 10.3390/jcm11051199] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/11/2022] [Accepted: 02/20/2022] [Indexed: 11/16/2022] Open
Abstract
Sleep bruxism (SB), snoring, and excessive daytime sleepiness are often associated with obstructive sleep apnea (OSA). OSA, which is characterized by a repetitive collapse of the upper airway during sleep, can cause oxygen desaturation and lead to adverse medical conditions, such as cardiovascular events, hypertension, heart attack, and stroke. In the present study, 112 Arab women aged 20−40 years (Early Adulthood/Adulthood−EarlyA) and 116 Arab women aged 50 and above (Middle Age−MiddleA), were requested to complete questionnaires regarding demographic variables, symptoms of nocturnal masticatory muscle activity (possible SB, headache, and stiffness of the oral and/or neck musculature upon awakening), risk of OSA (STOP-BANG questionnaire), and daytime sleepiness (Epworth sleepiness scale—ESS). Women, who reported snoring, experienced more SB (35.8% vs. 20.6%, chi-square, p < 0.05), more headaches (33.3% vs. 19.3%, p < 0.05), and more muscle stiffness upon awakening (34.3% vs. 16.3%, p < 0.005), than their non-snoring counterparts. Out of the women who snore, 11% showed high risk for OSA, as compared to only 1% among the non-snoring participants (p < 0.000). Symptoms of nocturnal masticatory muscle activity and/or snoring can serve as initial indicators of OSA. Higher awareness of dentists to such symptoms, particularly among their middle-aged female patients, can prevent a development of harmful conditions associated with OSA.
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Abstract
Abstract
Quality of sleep directly impacts quality of life, whilst lifestyle significantly impacts night rest. Cigarette smoking is a serious threat to overall health, including sleep. Nicotine in cigarettes affects the nervous system, whilst the respiratory system is impacted by carcinogenic substances, such as dusts and tarred substances, inhaled with smoke. Cigarettes are assumed to be a risk factor in sleep disorders, including breathing sleep disorders.
This study’s aim was to analyze the impact of cigarette smoking on adult men’s polysomnographic parameters.
Polysomnographic records for 94 adult men were obtained from the polysomnography laboratory in Opolskie Province, Poland. Additionally co-morbidities, height, weight and frequency of smoking were also noted. Three groups of men were categorised according to the frequency with which they smoked: non-smokers, smoking less than a pack a day, smoking more than a pack a day.
Compared to non-smokers and mild smokers, men who were heavy smokers also exhibited the longest sleepless time (H=8.11; p=0.017), the maximum waking time following the onset of sleep (H=7.99; p= 0.018), the lowest sleep efficiency across the three groups (H=7.96; p=0.019), the greatest number of apnea events per hour of sleep (H=6.23; p= 0.045), the lowest Oxygen Level Nadir (H=11.44; p= 0.003) and the highest rate of limb movements per hour of sleep (H=9.81; p=0.007).
The dose effect was identified, which correlated more cigarettes men smoked per day with lower sleep quality.
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Sakuma T, Yamaguchi T, Maeda M, Saito T, Nakamura H, Mikami S, Saito M, Nakajima T, Mizuno M, Yamada K, Takahashi S, Takahashi M, Yachida W, Satoh K. Comparison of the occurrence of sleep bruxism under accustomed conditions at home and under polysomnography conditions in a sleep laboratory. J Prosthodont Res 2022; 66:630-638. [DOI: 10.2186/jpr.jpr_d_21_00219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Toshimitsu Sakuma
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Taihiko Yamaguchi
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Masana Maeda
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Taishi Saito
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Hironobu Nakamura
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Saki Mikami
- Department of Temporomandibular Disorder, Center for Advanced Oral Medicine, Hokkaido University Hospital, Japan
| | - Miku Saito
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Toshinori Nakajima
- Department of Crown and Bridge Prosthodontics, Hokkaido University Hospital, Japan
| | - Mariko Mizuno
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Kyoko Yamada
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Sota Takahashi
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Mebae Takahashi
- Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, Japan
| | - Wataru Yachida
- Department of Crown and Bridge Prosthodontics, Hokkaido University Hospital, Japan
| | - Kaoru Satoh
- Department of Crown and Bridge Prosthodontics, Hokkaido University Hospital, Japan
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Grymak A, Waddell JN, Aarts JM, Ma S, Choi JJE. Evaluation of wear behaviour of various occlusal splint materials and manufacturing processes. J Mech Behav Biomed Mater 2022; 126:105053. [PMID: 34998068 DOI: 10.1016/j.jmbbm.2021.105053] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To investigate the volumetric and vertical loss of occlusal splints manufactured by conventional (heat-cure), subtractive (CAD/CAM) and additive (3D-printing) methods. METHODS Six occlusal splint materials were investigated (n = 126), using three manufacturing methods: heat-cured, CAD/CAM and 3D-printed built-in three different printing angles (0°,45°and 90°). Block-on-ring wear testing was performed with extracted human molars as the antagonist. All samples were tested with an applied force of 49N at 1 Hz and 60RPM in artificial saliva at 37 °C for six and 12 months. Scanning electron microscopy images were analysed to evaluate the wear on the tooth enamel and in the splint material. Volumetric and vertical wear loss were statistically analysed. RESULTS The lowest volumetric and vertical loss was observed in CAD-CAM materials (6.44 ± 1.77 mm3 and 48.3 ± 7.14 μm) with no statistical significance to the heat-cured material (17.22 ± 9.23 mm3 and 148 ± 121.1 μm) after 12 months (p < 0.172). The mean volumetric loss of 3D printed materials ranged from 0.25 ± 0.15 mm3 to 0.29 ± 0.1 4mm3 with no statistical difference, whereas, the differences in vertical loss from 131.63 ± 44.1 μm to 493 ± 79.19 μm were statistically significant (p < 0.001). The highest vertical loss was observed in the KeySplint Soft 3D printed at 90° (385.35 ± 82.37 μm), whereas FreePrint Splint 2.0 with a build angle of 0° had the highest volumetric loss (204.59 ± 25.67 mm3). CONCLUSION CAD-CAM material had the highest wear resistance followed by heat-cured material.KeySplint Soft and FreePrint Splint 2.0 3D printed materials would be preferred for patients that do not have severe bruxing episodes. No significant wear of human enamel after six and 12 months was observed under SEM for any tested materials.
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Affiliation(s)
- Anastasiia Grymak
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, New Zealand
| | - John Neil Waddell
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, New Zealand
| | - John M Aarts
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, New Zealand
| | - Sunyoung Ma
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, New Zealand
| | - Joanne Jung Eun Choi
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, New Zealand.
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Kitagawa K, Kodama N, Manda Y, Mori K, Furutera H, Minagi S. Effect of masseter muscle activity during wakefulness and sleep on tooth wear. J Prosthodont Res 2021; 66:551-556. [PMID: 34955483 DOI: 10.2186/jpr.jpr_d_21_00171] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE To investigate the effect of masseter muscle activity during wakefulness and sleep on tooth wear. METHODS Sixteen participants with no or mild tooth wear (NMTW group) and sixteen participants with moderate-to-severe tooth wear (MSTW group) were enrolled. The severity of tooth wear was evaluated using the occlusal and incisal indices of the tooth wear index. Surface electromyography was performed to record the electrical activity of the left masseter muscle during wakefulness and sleep. Electromyographic activity was detected using an electromyographic threshold of 5% and 20% of maximal voluntary clenching (MVC). The total duration of electromyographic activity and bruxism episodes were calculated. RESULTS The mean ages of the NMTW and MSTW groups were 71.75 ± 7.61 years and 71.69 ± 7.49 years, respectively. The mean cumulative duration of electromyographic activity during wakefulness using a threshold of >5% MVC was 6.44 ± 4.52 min/h and 13.62 ± 10.08 min/h for the NMTW and MSTW groups, respectively (p=0.048). The mean total durations of electromyographic activity during wakefulness and sleep using a threshold of >20% MVC were 1.08 ± 1.70 min/h and 1.05 ± 3.02 min/h, respectively, in the NMTW group and 4.78 ± 6.37 min/h and 1.61 ± 1.79 min/h, respectively, in the MSTW group (p=0.048 and p=0.003, respectively). CONCLUSION These results suggest that masseter electromyographic activity during wakefulness and sleep may be related to the severity of tooth wear.
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Affiliation(s)
- Keisuke Kitagawa
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Naoki Kodama
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Yousuke Manda
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Keitaro Mori
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Hiroshi Furutera
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Shogo Minagi
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
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Uchida H, Wada J, Watanabe C, Nagayama T, Mizutani K, Mikami R, Inukai S, Wakabayashi N. Effect of night dentures on tooth mobility in denture wearers with sleep bruxism: a pilot randomized controlled trial. J Prosthodont Res 2021; 66:564-571. [PMID: 34789636 DOI: 10.2186/jpr.jpr_d_21_00230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE The purpose of this study was to investigate the inhibitory effect of night denture (ND) placement on abutment tooth mobility in removable partial denture (RPD) wearers with sleep bruxism (SB). METHODS The participants were selected from RPD wearers diagnosed with SB using BiteStrip® and randomly allocated to one of the following groups: with ND placement or without ND placement (intervention or control group, respectively). The mobility of the RPD abutment tooth was measured using Periotest® at baseline (T0) and at 1 (T1), 3 (T3), and 6 months (T6). BiteStrip® scores were recorded at T0 and T6. Intragroup comparisons of the Periotest® value (PTV) were performed using analysis of covariance. Intergroup comparisons of PTV and BiteStrip® scores were performed using the linear mixed model and Wilcoxon signed-rank test, respectively. Intragroup comparisons of BiteStrip® scores were performed using the Mann-Whitney U test. RESULTS At T6, the PTV in the intervention group was significantly lower than that in the control group (p=0.004). PTV was significantly lower at T6 than that at T0 in the intervention group (p=0.030), while PTV was significantly higher at T6 than that at T0 in the control group (p=0.007). There was no significant difference in the BiteStrip® score between the two groups. The BiteStrip® score at T6 was significantly lower than that at T0 only in the intervention group (p=0.011). CONCLUSION ND placement might inhibit the increase in mobility of RPD abutment teeth and be effective in protecting them in RPD wearers with SB.
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Affiliation(s)
- Hirofumi Uchida
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Junichiro Wada
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Chie Watanabe
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, Tokyo, Japan
| | - Tomiharu Nagayama
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Koji Mizutani
- Department of Periodontology, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Risako Mikami
- Department of Periodontology, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shusuke Inukai
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Noriyuki Wakabayashi
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Fehlberg BK, Barros MBDA, Lima MG. Health behaviors and multimorbidity associated with bruxism: Population-based study. Oral Dis 2021; 29:245-253. [PMID: 34056810 DOI: 10.1111/odi.13928] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 04/26/2021] [Accepted: 05/26/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Determine the prevalence of possible bruxism in the adult population of Campinas, Brazil, and investigate its association with health behaviors, health status, and multimorbidity. METHODS A population-based cross-sectional study was conducted with data from the 2014/2015 Campinas Health Survey. The sample was composed of 1986 adults (≥20 years of age). The data were collected with the aid of a pre-coded questionnaire, and the dependent variable was self-reported bruxism (possible bruxism). The prevalence of possible bruxism was estimated according to the independent variables (health-related behaviors, morbidities, demographic and socioeconomic characteristics). A hierarchical model was employed using stepwise backward regression in two stages. Principal component analysis was also performed to identify multimorbidity patterns. RESULTS The prevalence of possible bruxism was 13.6%. Associations were found with the consumption of alcoholic beverages, sleep quality, and the number of chronic diseases/health problems. Bruxism was more associated with multimorbidity pattern 2, which was composed of asthma, rhinitis, sinusitis, dizziness/vertigo, migraine/headache, emotional/mental problem, back pain, and allergy. CONCLUSION The present findings justify the planning of actions directed at reducing the consumption of alcoholic beverages and can help guide the health actions of the multidisciplinary team, prioritizing a reduction in the harm caused by the simultaneous presence of health problems associated with possible bruxism.
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Affiliation(s)
- Bruna Kelly Fehlberg
- Department of Public Health, School of Medical Sciences, University of Campinas-UNICAMP, Campinas, Brazil
| | | | - Margareth Guimarães Lima
- Department of Public Health, School of Medical Sciences, University of Campinas-UNICAMP, Campinas, Brazil
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Lai YYL, Downs JA, Wong K, Zafar S, Walsh LJ, Leonard HM. Oral parafunction and bruxism in Rett syndrome and associated factors: An observational study. Oral Dis 2021; 29:220-231. [PMID: 34033206 DOI: 10.1111/odi.13924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To explore patterns of parafunction, and bruxism, and its relationships with genotype and snoring in individuals with Rett syndrome (RTT). METHODS Retrospective observational data of those with confirmed MECP2 mutations in the InterRett database (n = 216) were used to investigate experience of parafunctional habits, and bruxism and their relationships with genotype and snoring using multivariable linear regression. RESULTS The prevalence of parafunction was 98.2%. Bruxism was reported (66.2%) with the patterns mostly both diurnal and nocturnal (44.1%) and exclusively diurnal (42.7%). Compared to individuals with C-terminal deletion, individuals with p.Arg106Trp mutations were less likely to have bruxism reported (aOR = 0.15; 95% CI 0.02-0.98, p = 0.05) and those with p.Arg168* mutation were more likely to have frequent bruxism than none or occasional bruxism reported (aROR 3.4; 95% CI 1.1-10.7 p = 0.04). The relative odds of having nocturnal bruxism constantly, compared to none/occasionally, were higher among those 'always' snoring (aROR 6.24; 95% CI 2.1-18.2, p = 0.001) than those with no snoring. CONCLUSIONS There appeared to be genotypic association with bruxism in p.Arg168* and p.Arg106Trp mutations and association between nocturnal bruxism and frequent snoring in an international sample of individuals with RTT. Clinical significance of the high prevalence of bruxism should be highlighted in relation to difficulty communicating pain and increased dental treatment need in RTT.
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Affiliation(s)
- Yvonne Yee Lok Lai
- The University of Queensland School of Dentistry, UQ Oral Health Centre, Herston, QLD, Australia
- Telethon Kids Institute, University of Western Australia, Perth, WA, Australia
| | - Jenny Anne Downs
- Telethon Kids Institute, University of Western Australia, Perth, WA, Australia
- School of Physiotherapy and Exercise Science, Curtin University, Perth, WA, Australia
| | - Kingsley Wong
- Telethon Kids Institute, University of Western Australia, Perth, WA, Australia
| | - Sobia Zafar
- The University of Queensland School of Dentistry, UQ Oral Health Centre, Herston, QLD, Australia
| | - Laurence James Walsh
- The University of Queensland School of Dentistry, UQ Oral Health Centre, Herston, QLD, Australia
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Goulart AC, Arap AM, Bufarah HB, Bismarchi D, Rienzo M, Syllos DH, Wang YP. Anxiety, Depression, and Anger in Bruxism: A Cross-sectional Study among Adult Attendees of a Preventive Center. Psychiatry Res 2021; 299:113844. [PMID: 33690023 DOI: 10.1016/j.psychres.2021.113844] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 02/27/2021] [Indexed: 11/16/2022]
Abstract
The relationship between emotional symptom and bruxism is not well-established. We aimed to investigate sleeping bruxism and psychological factors. A cross-sectional study was performed in working-age adults attended in general outpatient service. The main outcome was the sleep bruxism diagnosed by dentist. Sociodemographic, clinical and psychological characteristics were evaluated according to sleep bruxism (yes/no). Scores of self-report scales of psychological symptoms (Beck Anxiety Inventory, Patient Health Questionnaire, and Dimensions of Anger Reactions) were individually subjected to factor analysis, through the extraction method of principal axis factoring. The associations between probable cases of sleep bruxism with dimensions of anxiety (somatic and cognitive), depression, and anger were estimated by linear regression models. Linear regression models (with β coefficients and 95% CI) were adjusted for sociodemographic covariates. Among 351 respondents, 37.3% presented sleep bruxism. Of them, high frequencies of symptoms of anger (68.1%), moderate-severe anxiety (23.6%), and depression (17.9%) were observed. After adjustment, somatic-anxiety (β: 0,136; CI95%: 0,028 to 0.276) was associated with sleep bruxism, but not cognitive-anxiety, depression or anger. The presence of sleeping bruxism should be routinely explored among adults, regarding its relationship with emotional symptoms.
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Affiliation(s)
| | - Astrid Marie Arap
- Health Promotion and Check-up Center, Hospital Sírio Libanês, São Paulo, São Paulo, Brazil
| | - Henry Bittar Bufarah
- Health Promotion and Check-up Center, Hospital Sírio Libanês, São Paulo, São Paulo, Brazil
| | - Danielle Bismarchi
- Health Promotion and Check-up Center, Hospital Sírio Libanês, São Paulo, São Paulo, Brazil
| | - Marcos Rienzo
- Health Promotion and Check-up Center, Hospital Sírio Libanês, São Paulo, São Paulo, Brazil
| | - Danielli Haddad Syllos
- Health Promotion and Check-up Center, Hospital Sírio Libanês, São Paulo, São Paulo, Brazil
| | - Yuan-Pang Wang
- Instituto de Psiquiatria (LIM-23), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
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Response. Chest 2021; 159:2118-2119. [PMID: 33965145 DOI: 10.1016/j.chest.2020.12.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 11/23/2022] Open
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