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Maejima K, Takaba M, Abe Y, Ohara H, Aoki R, Matsuyama M, Okuhara S, Baba K. Effects of vibratory feedback stimuli through an oral appliance on sleep bruxism: A 14-week intervention trial. J Dent Sci 2024; 19:1714-1721. [PMID: 39035344 PMCID: PMC11259639 DOI: 10.1016/j.jds.2023.11.003] [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: 10/23/2023] [Revised: 11/11/2023] [Accepted: 11/12/2023] [Indexed: 07/23/2024] Open
Abstract
Background/purpose Various biofeedback stimulation techniques for managing sleep bruxism (SB) have recently emerged; however, the effect of the successive application of vibratory feedback stimulation has not been clarified. This study aimed to elucidate the effect of vibration feedback stimulation via an oral appliance (OA) on SB. Materials and methods This prospective, single-arm, open-label intervention study included 20 participants diagnosed with "definite" SB who wore a specially designed OA for 98 nights at home. A force-based SB detection system triggered a vibrator attached to the OA. Vibratory stimulation was withheld during the first 3-week adaptation period (weeks 1-3), applied during the 9-week stimulation period (weeks 4-12), and withheld again during the post-stimulation period (weeks 13-14). The number and duration of SB events per hour of sleep were calculated based on piezoelectric signals recorded with the OA-based vibration feedback device and compared between weeks 3 and 4, 8, 12, and 14 and between weeks 12 and 14 using the Friedman test (post-hoc test with Bonferroni correction). Results The duration of SB events significantly decreased after vibratory stimulation (weeks 3 versus 4, 8, and 12: P < 0.001, P = 0.026, and P = 0.033, respectively) and then significantly increased upon cessation of vibratory stimulation after the stimulation period (weeks 12 versus 14: P < 0.001). Conclusion Contingent vibratory stimulation through an OA-based vibration feedback device may suppress SB-related masticatory muscle activity continuously for 9 weeks and may be an effective alternative for managing SB.
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Affiliation(s)
- Kohei Maejima
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Masayuki Takaba
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Yuka Abe
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Hironobu Ohara
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Risa Aoki
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Megumi Matsuyama
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Shiori Okuhara
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Kazuyoshi Baba
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
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Kawahara S, Kusunoki T, Arikawa K, Inoue T, Kawamoto A, Takahashi K, Shimada A. Reduction of sleep bruxism events according to contingent electrical stimulus intensity. J Oral Rehabil 2024. [PMID: 38831662 DOI: 10.1111/joor.13763] [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: 08/28/2023] [Revised: 05/11/2024] [Accepted: 05/19/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Although biofeedback with contingent electrical stimulation (CES) has demonstrated the reduction effect on sleep bruxism (SB), the relationship between the actual applied CES intensity and efficacy remains uncertain. OBJECTIVE This study aimed to investigate whether the reduction of bruxism events and jaw muscle symptoms could vary according to the intensity of CES and in probable sleep bruxers. METHODS Twenty probable sleep bruxers were initially screened for bruxer confirmation based on a 2-week recording of SB events with a portable electromyography recorder (BUTLER®GrindCare®, GC4). A 3-week recording was conducted without CES using a GC4, followed by another 3-week recording with CES. At baseline and before and after the CES (+) session, clinical muscle symptoms were assessed using a 0-10 numerical rating scale (NRS). The relationships between the actual applied CES intensity and the number of SB events/hour, as well as the NRS of clinical muscle symptoms, were analysed. RESULTS The actual applied CES intensity was positively correlated with the reduction rate of the number of SB events/hour (R = .643, p = .002), as well as with the reduction rate of NRS for pain, unpleasantness, fatigue, tension and stiffness (R > .500, p < .011). CONCLUSION Higher CES elicited a more robust reduction in SB events and clinical muscle symptoms, in probable bruxers. Prior to selecting CES biofeedback as a management option for SB, it would be beneficial to assess the tolerance threshold of CES in each bruxer in order to predict the effectiveness of CES in probable sleep bruxers.
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Affiliation(s)
- Shigehito Kawahara
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Japan
| | - Takayuki Kusunoki
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Japan
| | - Kaori Arikawa
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Japan
| | - Taro Inoue
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Japan
| | - Akiyo Kawamoto
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Japan
| | - Kazuya Takahashi
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Japan
| | - Akiko Shimada
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Japan
- Department of Oral Health Sciences, Faculty of Health Sciences, Osaka Dental University, Osaka, Japan
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Cagna DR, Donovan TE, McKee JR, Eichmiller F, Metz JE, Marzola R, Murphy KG, Troeltzsch M. Annual review of selected scientific literature: A report of the Committee on Scientific Investigation of the American Academy of Restorative Dentistry. J Prosthet Dent 2023; 130:453-532. [PMID: 37453884 DOI: 10.1016/j.prosdent.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 07/18/2023]
Abstract
The Scientific Investigation Committee of the American Academy of Restorative Dentistry offers this review of the 2022 dental literature to briefly touch on several topics of interest to modern restorative dentistry. Each committee member brings discipline-specific expertise in their subject areas that include (in order of the appearance in this report): prosthodontics; periodontics, alveolar bone, and peri-implant tissues; dental materials and therapeutics; occlusion and temporomandibular disorders; sleep-related breathing disorders; oral medicine and oral and maxillofacial surgery; and dental caries and cariology. The authors focused their efforts on reporting information likely to influence the daily dental treatment decisions of the reader with an emphasis on innovations, new materials and processes, and future trends in dentistry. With the tremendous volume of literature published daily in dentistry and related disciplines, this review cannot be comprehensive. Instead, its purpose is to update interested readers and provide valuable resource material for those willing to subsequently pursue greater detail on their own. Our intent remains to assist colleagues in navigating the tremendous volume of newly minted information produced annually. Finally, we hope that readers find this work helpful in managing patients.
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Affiliation(s)
- David R Cagna
- Professor, Associate Dean, Chair, and Residency Director, Department of Prosthodontics, University of Tennessee Health Sciences Center College of Dentistry, Memphis, Tenn.
| | - Terence E Donovan
- Professor, Department of Comprehensive Oral Health, University of North Carolina School of Dentistry, Chapel Hill, NC
| | - James R McKee
- Private practice, Restorative Dentistry, Downers Grove, Ill
| | - Frederick Eichmiller
- Vice President and Science Officer (Emeritus), Delta Dental of Wisconsin, Stevens Point, Wis
| | - James E Metz
- Private practice, Restorative Dentistry, Columbus, Ohio
| | | | - Kevin G Murphy
- Associate Clinical Professor, Department of Periodontics, University of Maryland College of Dentistry, Baltimore, Md
| | - Matthias Troeltzsch
- Private practice, Oral, Maxillofacial, and Facial Plastic Surgery, Ansbach, Germany; Department of Oral and Maxillofacial Surgery and Facial Plastic Surgery, University Hospital, Ludwig Maximilian University of Munich (LMU), Munich, Germany
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Soares T, Marques M, Barbosa C, Vaz M, Figueiral MH. 3D Resin-coated pressure sensor response for bite force assessment: A pilot study. J Dent Res Dent Clin Dent Prospects 2023; 17:109-111. [PMID: 37649818 PMCID: PMC10462465 DOI: 10.34172/joddd.2023.37142] [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: 03/05/2023] [Accepted: 04/02/2023] [Indexed: 09/01/2023] Open
Abstract
Background Occlusal splints with sensors help in the bruxism diagnosis and monitoring, by recording the patient's bite force. The aim of this study was to evaluate the accuracy of a pressure sensor when it is covered with different thicknesses of a 3D printing resin (Anycubic 405nm Translucent Green UV Resin, Anycubic, UK). Methods In this preliminary study, the evaluated sensor (FlexiForce A201 Sensor, Tekscan) was firstly calibrated without any type of cover material, and later tested with 3D printing resin with different thicknesses (1 mm, 1.15 mm, 1.4 mm and 1.6 mm). The load tests were performed by a force tester (MultiTest 2.5 dV, Mecmesin). Results When the pressure sensor was covered with resin of 1mm and 1.6 mm thick specimens, a higher difference was found between the applied load and the corresponding sensor reading. Conclusion It was concluded that it is possible to use this type of pressure sensor and that it showed better accuracy with the 1.15 mm and 1.4 mm 3D printing resin covering.
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Affiliation(s)
- Tânia Soares
- Faculty of Dental Medicine, University of Porto, Porto, Portugal
| | - Marco Marques
- LAETA Biomechanics Laboratory, INEGI. Faculty of Engineering, University of Porto, Porto, Portugal
| | - Cláudia Barbosa
- Faculty of Health Sciences, University of Fernando Pessoa, Porto, Portugal
| | - Mário Vaz
- Department of Mechanical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Maria Helena Figueiral
- Department of Oral Rehabilitation, Faculty of Dental Medicine, University of Porto, Porto, Portugal
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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: 20] [Impact Index Per Article: 10.0] [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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Aoki R, Takaba M, Abe Y, Nakazato Y, Ohara H, Maejima K, Baba K. A pilot study to test the validity of a piezoelectric intra-splint force detector for monitoring of sleep bruxism in comparison to portable polysomnography. J Oral Sci 2021; 64:63-68. [PMID: 34955491 DOI: 10.2334/josnusd.21-0421] [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: 11/01/2022]
Abstract
PURPOSE To test the validity of a force-based detection system (ISFD: intra-splint force detector) to record sleep bruxism (SB) in comparison to portable polysomnography (PSG). METHODS Simultaneous portable PSG recordings with a masseter electromyography (EMG) channel and ISFD with a deformation-sensitive piezoelectric film were performed on six participants with definite SB. First, simulated bruxism behaviors (static clenching, grinding, tapping, and rhythmic clenching) were recorded using both EMG and ISFD. Using these data, interval and duration criteria for ISFD data conditioning were established. Then, portable PSG recordings were conducted with the ISFD during sleep. Using the above criteria, ISFD events were compared with EMG-based SB episodes (the gold standard), and the sensitivity and positive predictive value of ISFD events were calculated. Spearman's correlation coefficients between true-positive ISFD events and SB episodes were then calculated. RESULTS Among the tested conditioning criteria, a 3-s interval combined with a 1-s duration was selected. The median sensitivity and positive predictive value for the ISFD were 0.861 and 0.585, respectively. The duration of true-positive ISFD events was correlated with that of EMG-based SB episodes (rho = 0.658, P < 0.01). CONCLUSION ISFD has validity for SB detection and could be an alternative to single-channel EMG-based recordings.
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Affiliation(s)
- Risa Aoki
- Department of Prosthodontics, School of Dentistry, Showa University
| | - Masayuki Takaba
- Department of Prosthodontics, School of Dentistry, Showa University
| | - Yuka Abe
- Department of Prosthodontics, School of Dentistry, Showa University
| | - Yukari Nakazato
- Department of Prosthodontics, School of Dentistry, Showa University
| | - Hironobu Ohara
- Department of Prosthodontics, School of Dentistry, Showa University
| | - Kohei Maejima
- Department of Prosthodontics, School of Dentistry, Showa University
| | - Kazuyoshi Baba
- Department of Prosthodontics, School of Dentistry, Showa University
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