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Pozzi A, Carosi P, Laureti A, Mattheos N, Pimkhaokham A, Chow J, Arcuri L. Accuracy of navigation guided implant surgery for immediate loading complete arch restorations: Prospective clinical trial. Clin Implant Dent Relat Res 2024. [PMID: 38967100 DOI: 10.1111/cid.13360] [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: 02/03/2024] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 07/06/2024]
Abstract
OBJECTIVES To assess navigation accuracy for complete-arch implant placement with immediate loading of digitally prefabricated provisional. MATERIALS AND METHODS Consecutive edentulous and terminal dentition patients requiring at least one complete-arch FDP were treated between December 2020 and January 2022. Accuracy was evaluated by superimposing pre-operative and post-operative cone beam computed tomography (CBCT), recording linear (mm) and angular (degrees) deviations. T-tests were performed to investigate the potential effect of the registration algorithm (fiducial-based vs. fiducial-free), type of references for the fiducial-free algorithm (teeth vs. bone screws), site characteristic (healed vs. post-extractive), implant angulation (axial vs. tilted), type of arch (maxilla vs. mandible) on the accuracy with p-value <0.05. RESULTS Twenty-five patients, 36 complete-arches, and 161 implants were placed. The overall mean angular deviation was 2.19° (SD 1.26°). The global platform and apex mean deviations were 1.17 mm (SD 0.57 mm), and 1.30 mm (SD 0.62 mm). Meaningful global platform (p = 0.0009) and apical (p = 0.0109) deviations were experienced only between healed and post-extraction sites. None of the analyzed variables significantly influenced angular deviation. Minor single-axis deviations were reported for the type of jaw (y-axis at implant platform and apex), registration algorithm (y-axis platform and z-axis deviations), and type of references for the fiducial-free algorithm. No statistically significant differences were found in relation to implant angulation. CONCLUSIONS Within the study limitations navigation was reliable for complete-arch implant placement with immediate loading digitally pre-fabricated FDP. AI-driven surface anatomy identification and calibration protocol made fiducial-free registration as accurate as fiducial-based, teeth and bone screws equal as references. Implant site characteristics were the only statistically significant variable with healed sites reporting higher accuracy compared to post-extractive. Live-tracked navigation surgery enhanced operator performance and accuracy regardless of implant angulation and type of jaw. A mean safety room of about 1 mm and 2° should be considered.
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Affiliation(s)
- Alessandro Pozzi
- Department of Clinical Science and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Harbor, USA
- Department of Restorative, Sciences Augusta University, Augusta, Georgia, USA
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Paolo Carosi
- Department of Clinical Science and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Andrea Laureti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Nikos Mattheos
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Atiphan Pimkhaokham
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - James Chow
- Brånnemark Osseointegration Centre, Hong Kong, China
| | - Lorenzo Arcuri
- Department of Odontostomatological and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
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Ferrini F, Gianfreda F, Bova F, Cattoni F, Bollero P, Gherlone E, Mastrangelo F. Zirconia CAD-CAM Crowns Behavior after Intraoral Digital Impression in Normal versus Dysfunctional Patients: 3 Years Retrospective Study. Eur J Dent 2024; 18:942-949. [PMID: 38331041 PMCID: PMC11290922 DOI: 10.1055/s-0043-1777350] [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: 02/10/2024] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the clinical performance and possible complications of single zirconia crowns fabricated using an intraoral digital computer-aided design-computer-aided manufacturing (CAD-CAM) protocol in normal and dysfunctional patients after 3 years of follow-up. MATERIALS AND METHODS Seventy patients were included in this study. The teeth were prepared with a knife-edge marginal design, and temporary crowns were placed. Digital impressions were taken using optical scanning, and the frameworks were milled using the same technology. The veneering process was performed by the same dental technician. The occlusal corrections were made before cementation. The outcomes were evaluated in terms of survival, failures, and complications. The marginal adaptation of the crowns was also assessed. RESULTS The digital protocol for single zirconia crowns resulted in satisfactory outcomes, with high rates of survival and minimal complications after 3 years of follow-up. The marginal adaptation of the crowns was excellent, with 93% of the restorations achieving the ideal marginal adaptation, while 7% had minor deviations. Parafunctions were found in 41.9% of the prosthetic rehabilitation, but no significant differences were observed between the normal and dysfunctional groups regarding the survival and complications of the crowns. CONCLUSION The digital protocol for single zirconia crowns is a reliable and predictable treatment option, even for patients with parafunction, when proper occlusal corrections are performed before cementation. The use of intraoral digital CAD-CAM technologies with optical impressions can simplify procedures, reduce the workflow time, and minimize the variables linked to the human factor.
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Affiliation(s)
| | | | - Francesco Bova
- Centro di igiene orale e prevenzione, Department of Dentistry, IRCCS Ospedale San Raffaele, Milan, Italy
| | | | - Patrizio Bollero
- Department of System Medicine University of Rome “Tor Vergata”, Rome, Italy
| | - Enrico Gherlone
- Department of Dentistry, IRCCS Ospedale San Raffaele, Milan, Italy
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Jiang Q, Wang Z, Zhang S, Liu X, Fu B. Performance of Bonded Lithium Disilicate Partial-coverage Crowns in the Restoration of Endodontically Treated Posterior Teeth: An Up to Seven-Year Retrospective Study. Oper Dent 2024; 49:365-375. [PMID: 38978317 DOI: 10.2341/23-107-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2024] [Indexed: 07/10/2024]
Abstract
OBJECTIVES To evaluate the clinical performance of adhesively bonded lithium disilicate glass-ceramic (LDG) partial-coverage crowns in restoring posterior endodontically treated teeth (ETT). METHODS AND MATERIALS A total of 121 morphologically compromised posterior ETT were restored with LDG partial-coverage crowns between October 2015 and January 2018. The restorations were fabricated in the laboratory or at the chairside. Two adhesive systems and resin cements were used to cement the restorations. Tooth and restoration survival rates were calculated. The restorations were evaluated clinically using the modified United States Public Health Service (USPHS) criteria for an observation period of 5-7 years. The Cox proportional hazards model was used to estimate relative failure risks such as tooth type, resin cements, gender, and sleep bruxism. The standard chi-squared test was used to compare the survival of different tooth types for significant differences (α=0.05). In addition, survival probability was calculated using the Kaplan-Meier algorithm. RESULTS Among seven failed cases, one was a tooth fracture, and six were restoration fractures. According to the Kaplan-Meier analysis, the estimated survival rate of the teeth was 99% for seven years, while the estimated survival rate of the restorations was 94.8% for 5 years and 92.8% for 7 years. Tooth type and resin cements did not influence restoration survival rates (p>0.05), while sleep bruxism and male patients might increase the risk of failure (p<0.05). CONCLUSIONS The indirect adhesively bonded LDG partial-coverage crowns of posterior ETT exhibited favorable clinical outcomes. Ceramic fracture was the most common failure pattern.
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Affiliation(s)
- Q Jiang
- Qin Jiang, MD, Department of Prosthodontic, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Disease of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Z Wang
- Zhe Wang, PhD, Department of Prosthodontic, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Disease of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - S Zhang
- Sisi Zhang, BDS, Department of Prosthodontic, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Disease of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - X Liu
- Xiaochen Liu, PhD, Department of Prosthodontic, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Disease of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - B Fu
- *Baiping Fu, DMD, Department of Prosthodontic, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Disease of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
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Bregagnol RB, Coltro MPDL, Villarinho EA, Triches DF, Alonso FR, Mezzomo LAM, de Macedo BB, Teixeira ER, Vigo A, Shinkai RSA. Long-term clinical performance of short 6-mm implants supporting single crowns in the posterior region: A 10-year cohort study. Clin Implant Dent Relat Res 2024; 26:158-169. [PMID: 37882144 DOI: 10.1111/cid.13287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/10/2023] [Accepted: 10/02/2023] [Indexed: 10/27/2023]
Abstract
INTRODUCTION Long-term clinical success of non-splinted, posterior, and short implants still is unclear. This prospective cohort study reports the 10-year follow-up of 6-mm implants supporting single crowns in the posterior region, and patient-reported outcomes. METHODS Baseline sample comprised 20 patients treated with 46 screw-retained crowns supported by 6-mm implants with moderately rough implant surface. Participants were recalled for a 10-year clinical follow-up to assess survival rates, biologic and mechanic conditions, quality of life (OHIP-14), and treatment satisfaction. Data were collected with clinical-radiographic exams and analyzed using descriptive and inferential statistics. RESULTS Fourteen patients with 35 implant-crown units were examined after 127.6 ± 11.8 months. For the entire cohort period, 7/46 implants were lost (survival estimate: 77.7% at 133 months), and mechanic complications occurred in 14/46 units (survival estimate: 66.4% at 116 months). In the Cox models, "maximum occlusal force" had a significant effect for implant loss (p = 0.038) and for prosthetic screw loosening (p = 0.038); "arch" and "bruxism" were not significant. Peri-implant bone loss was 0.4 ± 0.6 mm at 10 years. For peri-implant bone level, "crown-to-implant ratio" (p < 0.001) and "time" (p = 0.001) were significant. Bone levels differed from baseline to 12, 48, and 120 months. Satisfaction VAS was 94.0 ± 7.9 mm and OHIP-14 was 2.3 ± 2.2. CONCLUSION Single screw-retained crowns supported by 6-mm implants have an acceptable long-term clinical performance, with stable peri-implant bone levels after 10 years of function.
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Affiliation(s)
- Raphaela Brambilla Bregagnol
- School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
- Private Practice, Porto Alegre, Brazil
| | | | | | - Diego Fernandes Triches
- School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
- Private Practice, Porto Alegre, Brazil
| | - Fernando Rizzo Alonso
- School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
- Private Practice, Jaú, Brazil
| | - Luís André Mendonça Mezzomo
- School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
- School of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - Eduardo Rolim Teixeira
- School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Alvaro Vigo
- Postgraduate Program in Epidemiology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Rosemary Sadami Arai Shinkai
- School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
- School of Dentistry, University of São Paulo, São Paulo, Brazil
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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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Raman S, Yamamoto Y, Suzuki Y, Matsuka Y. Mechanism and clinical use of botulinum neurotoxin in head and facial region. J Prosthodont Res 2023; 67:493-505. [PMID: 36740263 DOI: 10.2186/jpr.jpr_d_22_00238] [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: 02/06/2023]
Abstract
PURPOSE Botulinum neurotoxin (BoNT) is a biological toxin produced by Clostridium botulinum. BoNT is a potent toxin extensively used in therapeutic interventions. This review provides an updated overview of the mechanisms of action and clinical applications of BoNT in head and facial region. STUDY SELECTION MEDLINE/PubMed searches were conducted using the terms "botulinum neurotoxin" and "dentistry" along with a combination of other related terms. In addition, studies were manually selected from reference lists of the selected articles. RESULTS The Food and Drug Administration in the United States initially approved BoNT to treat strabismus, blepharospasm, and hemifacial spasms. The use of BoNT in dermatology and cosmetics has been widely established and has created a revolution in these fields. Over the years, its applications in various medical specialties have expanded widely. Owing to its safety, efficacy, and long duration of action, it is well-accepted by patients. BoNT/A and BoNT/B are widely used in clinical practice. Several off-label uses of BoNT in the dental fraternity have yielded promising results. We have elaborated on the speculated mechanism of action, dosage, effective sites of injection, and adverse effects of each therapeutic application. The various clinical indications for BoNT include bruxism, myofascial pain, temporomandibular joint dislocation, hemifacial pain, orofacial dystonia, facial paralysis, chronic migraine, and trigeminal neuralgia. CONCLUSIONS BoNT is a safe treatment that can be used effectively, provided that the clinician has adequate knowledge regarding the mechanism, injection techniques, and local and systemic side effects and that it is administered cautiously and purposefully.
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Affiliation(s)
- Swarnalakshmi Raman
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Yumiko Yamamoto
- Department of Bacteriology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yoshitaka Suzuki
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Yoshizo Matsuka
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
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Kutkut A, Almehmadi N, Mattos M, Sharab L, Al-Sabbagh M. Dental Implant Treatment in Bruxers: A Case Report and Literature Review. J ORAL IMPLANTOL 2023; 49:485-494. [PMID: 37776245 DOI: 10.1563/aaid-joi-d-22-00245] [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: 10/02/2023]
Abstract
This case report presents a literature review and a case report of a full-mouth implant rehabilitation for a 65-year-old woman with a history of Bruxism. The patient's oral condition showed dentition with severe occlusal wear, extensive dental work, and missing teeth replaced with bridges and implants. The existing dental work was failing due to recurrent caries and the mechanical failure of long-span bridges. The unique aspect of the treatment presented in this report is the management of existing osseointegrated implants of different systems with different platform designs, which adds to the treatment's complexity. The existing implants were incorporated into the planned treatment, and other implants were added to support maxillary zirconia and mandibular hybrid full-arch prostheses. After 2 years of function, extensive wear was evident on the milled acrylic, even though an occlusal guard was used. New acrylic teeth were processed using the same milled titanium bar of the mandibular hybrid prosthesis, and the occlusal surfaces of the acrylic teeth were protected with gold onlays. The patient is seen regularly for maintenance every 6 months with no further complications. Careful evaluation, planning, and treatment execution are paramount in managing patients with a history of bruxism. Patients should be prepared and informed about possible mechanical failure and seen regularly for maintenance.
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Affiliation(s)
- Ahmad Kutkut
- Division of Prosthodontics, College of Dentistry, University of Kentucky, Lexington, Kentucky
| | - Nehal Almehmadi
- Division of Periodontology, College of Dentistry, University of Kentucky, Lexington, Kentucky
| | - Marcelo Mattos
- Division of Periodontology, College of Dentistry, University of Kentucky, Lexington, Kentucky
| | - Lina Sharab
- Division of Orthodontics, College of Dentistry, University of Kentucky, Lexington, Kentucky
| | - Mohanad Al-Sabbagh
- Division of Periodontology, College of Dentistry, University of Kentucky, Lexington, Kentucky
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Pozzi A, Carosi P, Gallucci GO, Nagy K, Nardi A, Arcuri L. Accuracy of complete-arch digital implant impression with intraoral optical scanning and stereophotogrammetry: An in vivo prospective comparative study. Clin Oral Implants Res 2023; 34:1106-1117. [PMID: 37485737 DOI: 10.1111/clr.14141] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 07/04/2023] [Accepted: 07/13/2023] [Indexed: 07/25/2023]
Abstract
OBJECTIVES To assess accuracy of intraoral optical scanning (IOS) and stereophotogrammetry (SPG), complete-arch digital implant impressions in vivo. MATERIALS AND METHODS Consecutive patients needing implant-supported screw-retained zirconia complete-arch fixed-dental prostheses (ISZ-FDP) were recruited. For each patient, three impressions were taken: IOS, SPG (tests), and open-tray plaster (reference). Linear (ΔX, ΔY, and ΔZ), three-dimensional (ΔEUC), and angular deviations (ΔANGLE) were evaluated and stratified according to scanning technology for each implant. Potential effects of impression device (IOS and SPG), arch (maxilla and mandible), and implant number (4 and 6) were evaluated through multivariable analysis. Significance level was set at .05. RESULTS A total of 11 complete arches (5 maxillae, 6 mandibles) in 11 patients were rehabilitated with ISZ-FDPs supported by 4 (n = 8) and 6 implants (n = 3). A total of 50 implants and 100 implant positions were captured by two investigated devices and compared to respective reference (mean ΔEUC IOS 137.2, SPG 87.6 μm; mean ΔANGLE 0.79, 0.38°). Differences between measurements (SPG-IOS) were computed for each implant, with negative values indicating better SPG accuracy. Significant mean ΔEUC difference of -49.60 μm (p = .0143; SD 138.15) and mean ΔANGLE difference of -0.40° (p < .0001; SD 0.65) were observed in favor of SPG. Multivariable analysis showed significant effect on ΔEUC (p = .0162) and ΔANGLE (p = .0001) only for impression devices, with SPG performing better. CONCLUSIONS SPG experienced significantly higher linear and angular accuracy. No effect of type of arch or implant number was detected. Higher extreme deviations were experienced for IOS. SPG can be feasible for complete-arch digital impressions with caution, and rigid prototype try-in is recommended before screw-retained prosthesis manufacturing.
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Affiliation(s)
- Alessandro Pozzi
- Department of Clinical Sciences and Translational Medicine, School of Dentistry, University of Tor Vergata, Rome, Italy
- Departement of Restorative Sciences, Dental College of Georgia, Augusta University, Augusta, USA
| | - Paolo Carosi
- Department of Chemical Science and Technologies, PhD in Materials for Health, Environment and Energy - Dentistry, University of Rome Tor Vergata, Rome, Italy
| | - German O Gallucci
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Katalin Nagy
- Department of Oral Surgery, Faculty of Dentistry, University of Szeged Tisza L. Krt, Szeged, Hungary
| | - Alessandra Nardi
- Department of Mathematics, University of Rome Tor Vergata, Rome, Italy
| | - Lorenzo Arcuri
- Department of Odontostomatological and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
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Mungia R, Lobbezoo F, Funkhouser E, Glaros A, Manfredini D, Ahlberg J, Taverna M, Galang-Boquiren MT, Rugh J, Truong C, Boone H, Cheney C, Verhoeff MC, Gilbert GH. Dental practitioner approaches to bruxism: Preliminary findings from the national dental practice-based research network. Cranio 2023:1-9. [PMID: 37016587 PMCID: PMC11011247 DOI: 10.1080/08869634.2023.2192173] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2023]
Abstract
OBJECTIVE Bruxism is a repetitive masticatory muscle activity. This study investigates dental practitioners' approaches to bruxism assessment and treatment in practices. METHODS A brief 5 question questionnaire ("Quick Poll") on bruxism was conducted. RESULTS A total of 397 practitioners responded. More than half (55%) initiated treatment for bruxism on one to three patients per month. The majority believed that stress (97%) and sleep patterns (82%) affected bruxism in their patients. Interestingly, 96% offered an occlusal guard/appliance and 46% made occlusal adjustments. CONCLUSION This study highlights inconsistencies in practitioner approaches to bruxism assessment and management in clinical settings, suggesting gaps in practitioner knowledge evidenced by the varied responses. ABBREVIATIONS PBRN - Practice-Based Research NetworkMMA - Masticatory muscle activitySB - Sleep bruxismAB - Awake bruxismTMJ - Temporomandibular jointOSA - Obstructive sleep apnea.
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Affiliation(s)
- Rahma Mungia
- Department of Periodontics, School of Dentistry, The University of Texas Health Science Center at San Antonio, Texas, USA
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Ellen Funkhouser
- Department of Medicine, School of Medicine, University of Alabama at Birmingham
| | - Alan Glaros
- School of Dentistry, The University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - Daniele Manfredini
- Department of Medical Biotechnologies, Università degli Studi di Siena, Siena, Italy
| | - Jari Ahlberg
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Melanie Taverna
- Department of Periodontics, School of Dentistry, The University of Texas Health Science Center at San Antonio, Texas, USA
| | | | - John Rugh
- Department of Developmental Dentistry, School of Dentistry, The University of Texas Health Science Center at San Antonio, Texas, USA
| | - Clarisse Truong
- Department of Periodontics, School of Dentistry, The University of Texas Health Science Center at San Antonio, Texas, USA
| | - Honesty Boone
- Department of Periodontics, School of Dentistry, The University of Texas Health Science Center at San Antonio, Texas, USA
| | | | - Merel C. Verhoeff
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Gregg H. Gilbert
- Department of Clinical and Community Sciences, School of Dentistry, University of Alabama at Birmingham
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Ågren M, Nanchaipruek Y, Phumariyapong P, Apinuntham C, Rakchart S, Pettersson M, Wanitphakdeedecha R. Duration of bite force reduction following a single injection of botulinum toxin in the masseter muscle bilaterally: A one-year non-randomized trial. J Oral Rehabil 2023; 50:343-350. [PMID: 36810787 DOI: 10.1111/joor.13434] [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: 03/14/2022] [Revised: 11/07/2022] [Accepted: 02/09/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND Previous studies concerning the effect of botulinum toxin in masseter muscle have mainly reported effects observed through inspection of facial features or differences in pain levels. One systematic review of studies utilizing objective measurements reported that long-term muscular effect of botulinum neurotoxin injections into masseter muscle was inconclusive. OBJECTIVE To evaluate the duration of reduced maximal voluntary bite force (MVBF) after botulinum toxin intervention. METHODS The intervention group was comprised of individuals seeking aesthetic treatment for masseter reduction (n = 20), the reference group (n = 12) comprised of individuals with no intervention. Intervention through 25 units of Xeomin® (Merz Pharma GmbH & Co KGaA, Frankfurt am Main, Germany) botulinum neurotoxin type A injected into the masseter muscles bilaterally (totalling 50 units). A reference group did not receive any intervention. MVBF was measured in Newtons using a strain gauge meter at the incisors and first molars. MVBF was measured at baseline, at 4 weeks, 3 months, 6 months, and after 1 year. RESULTS Both groups were similar in terms of bite force, sex and age at baseline. MVBF remained similar compared to baseline in the reference group. At 3 months, a significant reduction at all measurement points was observed in the intervention group; at 6 months, this reduction was no longer significant. CONCLUSION A single intervention of 50 units of botulinum neurotoxin results in a reversible MVBF reduction of at least 3 months, although a visually discernable reduction may be more long-lasting.
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Affiliation(s)
- Martin Ågren
- Department of Odontology, Faculty of Medicine, Umeå University, Umeå, Sweden.,Prosthodontic Specialist Clinic, Region Västerbotten, Umeå, Sweden
| | - Yanisorn Nanchaipruek
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Phumithep Phumariyapong
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chalermkwan Apinuntham
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Mattias Pettersson
- Department of Odontology, Faculty of Medicine, Umeå University, Umeå, Sweden
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Bredberg C, Vu C, Häggman-Henrikson B, Chrcanovic BR. Marginal bone loss around dental implants: comparison between matched groups of bruxer and non-bruxer patients: A retrospective case-control study. Clin Implant Dent Relat Res 2023; 25:124-132. [PMID: 36411179 PMCID: PMC10099792 DOI: 10.1111/cid.13161] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 11/23/2022]
Abstract
PURPOSE To compare marginal bone loss (MBL) around dental implants in a group of bruxers in relation to a matched group of non-bruxers. METHODS The present record-based retrospective study included patients selected from individuals treated with dental implants at one specialist clinic in Malmö. Only implants not lost and with baseline radiographs taken within 12 months after implant placement and with a minimum of 36 months of radiological follow-up were considered for inclusion. Univariate linear regression models and a linear mixed-effects model were performed. RESULTS Two hundred and four patients (104 bruxers, 100 non-bruxers), with a total of 811 implants (416 in bruxers, 395 in non-bruxers) were included in the study. The results of the linear mixed-effects model suggested that bruxism, smoking, age, region of the jaws, implant diameter, and prosthesis type had a statistically significant influence on MBL over time. Individuals who are both bruxers and smokers showed greater MBL when compared to individuals who are either a bruxer or smoker, or neither (p < 0.001). CONCLUSIONS Bruxism is suggested to increase the risk of MBL over time, as well as higher age, smoking, and the combination of bruxism and smoking. Other factors that showed a correlation with increased MBL were implant diameter, region of the jaws, and prosthesis type, but it is not possible to draw robust conclusions for these factors, as the categories of these variables were very unbalanced.
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Affiliation(s)
| | - Camila Vu
- Faculty of Odontology, Malmö University, Malmö, Sweden
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12
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When (and when not) to use the Dahl Concept. Br Dent J 2023; 234:155-164. [PMID: 36765221 DOI: 10.1038/s41415-023-5502-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 10/10/2022] [Indexed: 02/12/2023]
Abstract
The Dahl Concept describes the re-establishment of occlusal contacts after the provision of a planned localised appliance or restoration in supraocclusion. Initially developed to create space for prosthetic rehabilitation of anterior teeth suffering from localised wear, the principle has later been successfully applied to a variety of situations, including the Hall technique and resin-bonded bridges cemented in supraocclusion. Despite high levels of success seen in the relevant literature and widespread adoption in specialist care, the wider profession appears to be far more cautious in its use. This article aims to provide a brief summary of the Dahl Concept and discuss the local and general factors that influence its successful implementation in the hope of promoting its increased adoption by the broader dental profession.
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13
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Parisini P. A digital, custom gothic arch tracing technique for vertical dimension of occlusion and centric relation recording. J Prosthet Dent 2023:S0022-3913(22)00761-2. [PMID: 36609082 DOI: 10.1016/j.prosdent.2022.11.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/03/2022] [Accepted: 11/03/2022] [Indexed: 01/06/2023]
Abstract
A method for identifying the vertical dimension of occlusion and centric relation in patients requiring dental rehabilitation is described. The technique relies on designing and fabricating a custom variant of the gothic arch tracer based on intraoral scans and its application following the principles of neuromuscular balance of the stomatognathic system.
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14
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Erdil D, Bagis N, Eren H, Camgoz M, Orhan K. The Evaluation of the Relationship between Changes in Masseter Muscle Thickness and Tooth Clenching Habits of Bruxism Patients Treated with Botulinum Toxin A. J Med Ultrasound 2023; 31:22-28. [PMID: 37180633 PMCID: PMC10173841 DOI: 10.4103/jmu.jmu_51_22] [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: 05/20/2022] [Revised: 06/07/2022] [Accepted: 06/29/2022] [Indexed: 05/16/2023] Open
Abstract
Background Bruxism is defined as recurrent masticatory muscle activity. Although there is not an agreed treatment method for bruxism, the application of botulinum toxin A (BT-A) has become a reliable lately. This study aimed to evaluate the correlation between the changes in masseter muscle thickness and clenching habits in bruxism patients treated with BT-A. Methods Twenty-five patients, 23 females and 2 males, diagnosed with possible sleep bruxism were included in the study. The Fonseca Anamnestic Index was applied to the patients to determine their clenching habits and depression levels both before the treatment, and 6 months after it. The masseter muscle thickness was measured using ultrasonography before the treatment and 3 months and 6 months after the treatment. All the patients were injected with a total of 50 U of BT-A, 25 U to each masseter. Results A statistically significant decrease in masseter muscle thickness was observed in the ultrasonography 3 and 6 months after the BT-A treatment. There was a statistically significant decrease in the Fonseca scores, in which the teeth clenching habits of the patients were evaluated 6 months after the treatment. Although there was a decrease in the depression levels of the patients 6 months after the treatment, this difference was not statistically significant. Conclusion When the results of this study were evaluated, it was seen that the BT-A injections are an effective, safe, and side effect-free method in the treatment of bruxism and masseter hypertrophy.
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Affiliation(s)
- Deniz Erdil
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Nilsun Bagis
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Hakan Eren
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Melike Camgoz
- Faculty of Dentistry, Gazi University, Ankara, Turkey
- Address for correspondence: Dr. Melike Camgoz, Gazi University Faculty of Dentistry, Ogretim Uyeleri (VIP) Klinigi Biskek Cd 1. Sk No.4, Emek/Cankaya, Ankara, Turkey. E-mail:
| | - Kaan Orhan
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara, Turkey
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15
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Pozzi A, Arcuri L, Fabbri G, Singer G, Londono J. Long-term survival and success of zirconia screw-retained implant-supported prostheses for up to 12 years: A retrospective multicenter study. J Prosthet Dent 2023; 129:96-108. [PMID: 34187699 DOI: 10.1016/j.prosdent.2021.04.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 01/18/2023]
Abstract
STATEMENT OF PROBLEM Despite the broad clinical application of zirconia for fixed implant-supported prostheses, evidence of long-term performance is sparse. PURPOSE The purpose of this retrospective study was to evaluate the long-term clinical and radiographic outcomes of zirconia-based partial and complete screw-retained implant-supported zirconia fixed dental prostheses (ISZFDPs). MATERIAL AND METHODS Records of patients treated with dental implants and ISZFDPs between December 2004 and June 2017 were screened. Eligible study participants, according to inclusion criteria, were contacted and invited to undergo clinical and radiographic examinations. Outcomes were evaluated as implant and prosthetic survival rates, prosthetic success rate, complications, marginal bone level (MBL) change, and soft tissue condition. Along with the effects of zirconia prosthesis type and level, the effects of implant type and connection, type of loading, and follow-up on MBL were tested with a generalized linear effects model (GLEM) (α=.05). RESULTS A total of 118 patients were identified, of whom 20 (16.9%) were not available for clinical examination for various reasons. Ninety-eight participants (mean age 60.7 ±11.7 years) with 337 implants were included, of which 176 (52.2%) had been immediately loaded. A total of 111 ISZFDPs (96 zirconia connection and 15 titanium base) were investigated: 24 complete ISZFDPs with a zirconia connection (12.9 ±0.97 dental units, minimum 12, maximum 14), 72 partial with a zirconia connection (3.11 ±1.12, minimum 2, maximum 7), 15 partial with a titanium base (3.62 ±1.02, minimum 2, maximum 5). Forty ISZFDPs had been in function for ≥10 years (36%), 38 for 5 to 9 years (34.2%), and 33 for 2 to 4 years (22.8%). The mean follow-up time was 7.2 ±3.4 years. No zirconia fractures were identified. Two implants and 2 ISZFDPs failed, with chipping being the most common complication (13.5%). The implant survival rate was 99.4%, and the prosthetic survival rate was 98.2%. The cumulative prosthetic success rate was 91.9%. MBL change was -0.18 ±0.59 mm. Thirteen implants were treated for peri-implantitis (3.8%), and 9 for mucositis (2.7%), but presented healthy peri-implant soft tissues at the follow-up examination. A significant difference was found between the implant-level and abutment-level prostheses (P=.013), with less marginal bone loss observed in ISZFDPs delivered at the implant level. CONCLUSIONS Zirconia-based screw-retained implant-supported prosthesis can be considered a reliable long-term treatment option for partial and complete edentulism. No zirconia fractures were experienced. Stable bone levels and low peri-implantitis rates were reported regardless of the ISZFDP type and level, implant type and connection, and type of loading.
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Affiliation(s)
- Alessandro Pozzi
- Adjunct Associate Professor, Goldstein Center for Esthetic and Implant Dentistry, Department of Restorative Sciences, The Dental College of Georgia at Augusta University, Augusta, Ga; Private practice, Rome, Italy.
| | - Lorenzo Arcuri
- Assistant Professor, Department of Clinical Sciences and Translational Medicine, University of Tor Vergata, Rome, Italy
| | | | | | - Jimmy Londono
- Associate Professor, Director of Goldstein Center for Esthetic and Implant Dentistry, Department of Restorative Sciences, The Dental College of Georgia at Augusta University, Augusta, Ga
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Akat B, Görür SA, Bayrak A, Eren H, Eres N, Erkcan Y, Kılıçarslan MA, Orhan K. Ultrasonographic and electromyographic evaluation of three types of occlusal splints on masticatory muscle activity, thickness, and length in patients with bruxism. Cranio 2023; 41:59-68. [PMID: 32936747 DOI: 10.1080/08869634.2020.1820685] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To evaluate occlusal splint type differences in patients with bruxism. METHODS Seventeen controls and 51 patients were divided into three subgroups, each assigned to use a different occlusal splint (hard, soft, or semi-soft) for 3 months and assessed by ultrasonography and electromyography (EMG) before (BT) and 3 months after treatment (AT). RESULTS EMG values in all of the occlusal splint groups were significantly lower AT than BT (p < 0.05). BT and AT EMG values in the control group did not differ. Mean muscle thicknesses in bruxism patients was greater than in controls, and the greatest muscle thickness changes occurred with the hard occlusal splint (p < 0.05). DISCUSSION A decrease in EMG activity occurred with all three splint types and was most prominent in the hard occlusal splint group. Ultrasonographic measurements of muscle length and thickness should be used alongside EMG to measure muscle activity in bruxism patients.
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Affiliation(s)
- Bora Akat
- Department of Prosthodontics, Faculty of Dentistry, University of Ankara, Ankara, Turkey
| | - Sinem Atay Görür
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, University of Ankara, Ankara, Turkey
| | - Ayben Bayrak
- Department of Prosthodontics, Faculty of Dentistry, University of Ankara, Ankara, Turkey
| | - Hakan Eren
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, University of Ankara, Ankara, Turkey
| | - Necati Eres
- Department of Prosthodontics, Faculty of Dentistry, University of Lokman Hekim, Ankara, Turkey
| | - Yezdan Erkcan
- Department of Prosthodontics, Faculty of Dentistry, University of Ankara, Ankara, Turkey
| | - Mehmet Ali Kılıçarslan
- Department of Prosthodontics, Faculty of Dentistry, University of Ankara, Ankara, Turkey
| | - Kaan Orhan
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, University of Ankara, Ankara, Turkey
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17
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Teche FP, Valenzuela EBS, Tavares JG, Oliveira EWCD, Bittencourt HR, Burnett Júnior LH, Spohr AM. Immediate dentin sealing influences the fracture strength of ultrathin occlusal veneers made of a polymer-infiltrated ceramic network. J Mech Behav Biomed Mater 2022; 133:105331. [DOI: 10.1016/j.jmbbm.2022.105331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/12/2022] [Accepted: 06/18/2022] [Indexed: 10/17/2022]
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18
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Gazelakis E, Judge RB, Palamara JEA, Nazir M. The Biomechanical Profile of an Osseo-Integrated Rectangular Block Implant: A Pilot In Vivo Strain Analysis. Bioengineering (Basel) 2022; 9:bioengineering9090425. [PMID: 36134973 PMCID: PMC9495886 DOI: 10.3390/bioengineering9090425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Aim: To load-test the osseo-integrated rectangular block implant (RBI), measure the generated cortical peri-implant strains, and relate these findings to known human physiological parameters. Materials and methods: Two RBIs were placed into the posterior mandibular saddle in a mature greyhound dog and allowed to osseo-integrate. The half mandible (implants in situ) was mounted in a servohydraulic system. Four triple-stacked rosette gauges were placed cortically (mesial, distal, buccal, and lingual). A modified ISO-14801 protocol was used (1000 N, 300, 2 Hz, 1 h) and the generated principal strains (ep, eq) and their angular orientations (F), were calculated. Results: (1) Bucco-lingual “horizontal” dimension: dominant “horizontal” compressive stresses were on the lingual aspect and “horizontal” tensile stresses on the buccal aspect. The buccal cortex was elastically tensile-stretched, while the lingual cortex was elastically compressed. (2) Bucco-lingual “vertical” dimension: dominant vertical torsional stresses were oriented buccally and apically, with an overall buccally inclined torsional effect. This was also evidenced on the lingual aspect, where there remained high torsional rotation elements (high F and e2). (3) Mesio-distal “horizontal” dimension: dominant torsional stresses oriented as a distal-lingual “counter-clockwise” rotation. Conclusions: The applied off-axial loads generated a heterogeneous pattern of bucco-lingual and mesio-distal cortical strains, both vertically and horizontally. The short dimensioned osseo-integrated RBI design appeared to biomechanically withstand the applied loads and to maintain the strains generated to levels that were within physiological limits. More studies and statistical analyses are needed to confirm these findings.
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19
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Hawthan MA, Chrcanovic BR, Larsson C. Long-term retrospective clinical study of tooth-supported fixed partial dentures: A multifactorial analysis. J Prosthodont Res 2022; 67:238-245. [PMID: 36031347 DOI: 10.2186/jpr.jpr_d_21_00222] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE To assess the influence of several factors on the survival of tooth-supported fixed partial dentures (FPDs) with vital and non-vital abutments. MATERIALS AND METHODS The present retrospective cohort study was based on the records of patients treated with 3-to-7-unit tooth-supported FPDs with a minimum follow-up time of 6 months after prosthesis delivery. Cumulative survival rate (CSR) was calculated over the maximum follow-up period. Cox regression models were used to evaluate the association between the clinical covariates and prosthesis failure. RESULTS A total of 331 FPDs in 229 patients were included. The CSRs were 90.1% and 77.6% after 5 and 10 years and 67.9% and 52.1% after 15 and 20 years, respectively. Tooth-supported FPD failure was more prevalent within the first years of prosthesis delivery. Loss of one or more abutment teeth and loss of prosthesis retention were the main reasons for failure. Smoking and type of prosthesis material significantly influenced the survival of FPDs. Abutment vitality, position of the non-vital abutment, or prosthesis length did not show any significant influence on the occurrence of prosthesis failure. CONCLUSION Smoking and the type of prosthesis material are suggested to contribute to an increased rate of FPD failure irrespective of abutment vitality.
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Affiliation(s)
- Mohammed Abdullah Hawthan
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.,Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, Faculty of Dentistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Bruno R Chrcanovic
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Christel Larsson
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
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20
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Wierichs RJ, Weilenmann W, Jeganathan S, Perrin P. Longevity of immediate rehabilitation with direct metal-wire reinforced composite fixed partial dentures. Dent Mater 2022; 38:e257-e265. [PMID: 35718596 DOI: 10.1016/j.dental.2022.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/04/2022] [Accepted: 06/05/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES This study aimed to analyze the longevity of direct metal-wire reinforced composite fixed partial dentures (MRC-FPD) and factors influencing their survival and success. METHODS Within one private practice 513 MRC-FPD were directly applied. The preparation of a proximal cavity in abutment teeth was not limited. MRC-FPD were reinforced by one to three metal-wires. At the last follow-up MRC-FPD were considered successful, if they were still in function without any need of therapy. MRC-FPD were considered as survived, if they were repaired or replaced. Multi-level Cox proportional hazard models were used to evaluate the association between clinical factors and time. RESULTS Mean follow-up period (range) was 59(2-249) months. Seventy-three bridges did not survive (cumulative survival rate(CSR):86%) and further 129 bridges had received a restorative follow-up treatment (CSR:61%). AFR was 2.2% for survival and 8.6% for success. In multivariate analysis MRC-FPD with> 1 wire showed a up to 2.3x higher failure rate than MRC-FPD with one wire(p ≤ 0.023). Dentist's experience in designing MRC-FDP (p ≤ 0.017), patient's caries risk (p ≤ 0.040) and bruxism (p = 0.033) significantly influenced the failure rate: the more experience, the lower caries risk and bruxism, the lower the failure rate. SIGNIFICANCE For directly prepared metal-wire reinforced composite bridges high survival and moderate success rates were observed. MRC-FPD might, thus, be an immediate, short- and medium-term solution for replacing missing teeth. However, several factors on the levels of practice (dentist's experience in designing MRC-FDP), patient (bruxism, caries risk) and restoration (number of wires) were identified as significant predictors for the failure rate. The study was registered in the German Clinical Trials Register (DRKS-ID: DRKS00021576).
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Affiliation(s)
- R J Wierichs
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Bern, Switzerland.
| | | | - S Jeganathan
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Bern, Switzerland
| | - P Perrin
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Bern, Switzerland; Private clinic, Schaffhausen, Switzerland
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21
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Prosthodontic Treatment in Patients with Temporomandibular Disorders and Orofacial Pain and/or Bruxism: A Review of the Literature. PROSTHESIS 2022. [DOI: 10.3390/prosthesis4020025] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Temporomandibular disorders are a group of conditions affecting the temporomandibular joints, the jaw muscles, and related structures. Patients with temporomandibular signs and/or symptoms frequently present with indications for prosthetic treatment. The management of these patients aims to achieve patient comfort, occlusal stability, and the complex restoration of the teeth. The goal of this review is to provide an overview of the relationship between prosthodontics and temporomandibular disorders and/or bruxism with a focus on the cause-and-effect implications and the strategies for planning prosthetic treatments in patients with temporomandibular disorders and/or bruxism.
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22
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Hawthan M, Chrcanovic BR, Larsson C. Retrospective clinical study of tooth-supported single crowns: A multifactor analysis. Eur J Oral Sci 2022; 130:e12871. [PMID: 35613306 PMCID: PMC9546353 DOI: 10.1111/eos.12871] [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: 01/05/2022] [Accepted: 04/24/2022] [Indexed: 11/28/2022]
Abstract
The purpose of the study was to investigate the influence of multiple factors on the survival of tooth‐supported single crowns and assess the biological and technical complications. This retrospective study included patients rehabilitated with single crowns with a minimum follow‐up time of 6 months after delivery. The cumulative survival rate was calculated over the maximum period of follow‐up time and reported in a life‐table survival analysis. Univariate and multivariate Cox regression was used to evaluate the associations between clinical covariates and crown failure. The included cohort group consisted of 1037 single crowns delivered in 401 patients and followed for a mean of 134.8 ± 80.2 months. Cumulative survival rate was 89.9% and 80.9% after 5 and 10 years and 70.5% and 61.8% after 15 and 20 years, respectively. The main reasons for single crown failure were loss of retention, tooth loss, and fracture. Anterior placement, non‐vital abutments, and bruxism significantly influenced the survival of single crowns. The survival of single crowns was not influenced by patient's age and sex, location of the crowns in relation to the jaws, type of tooth, presence of post and core, and type of crown material, treatment providers, or smoking. Anterior placement, non‐vital abutments, and bruxism are factors suggested to increase the risk of single crown failure and the prevalence of technical and biological complications.
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Affiliation(s)
- Mohammed Hawthan
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.,Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, Faculty of Dentistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Bruno R Chrcanovic
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Christel Larsson
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
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23
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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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24
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Kuo PJ, Lin CY, Hung TF, Chiu HC, Kuo HY. A novel application of dynamic guided navigation system in immediate implant placement. J Dent Sci 2022; 17:354-360. [PMID: 35028058 PMCID: PMC8740148 DOI: 10.1016/j.jds.2021.09.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 09/22/2021] [Indexed: 10/26/2022] Open
Abstract
Background/purpose Immediate placement in the esthetic zone has been a predictable treatment option. However, it requires the clinician to be experienced and knowledgeable about esthetic diagnosis, accurate 3-dimensional (3D) implant placement, and restoratively driven planning/placement. Therefore, this study aimed to investigate a novel workflow integrating dynamic navigation to immediate single-implant placement in the aesthetic zone. Materials and methods We included ten patients who required at least one implant in the esthetic area and were treated with post-extraction socket implant placement. Osteotomy and implant placement followed computer-assisted implant positioning and image-guided dynamic navigation. Treatment outcomes were implant success rates, surgical and prosthetic complications, marginal bone level (MBL), modified pink esthetic score, and white score. Results In the consecutive clinical cases, patients were satisfied with implant therapy's function and esthetic outcome in the esthetic zone. No other surgical or biological complications occurred, which accounts for the 100% cumulative success rate. The mean MBL was -0.76 ± 0.15 mm assessed using standardized intraoral digital periapical radiographs. Conclusion The novel application of a dynamic guided navigation system is a dependable clinical protocol to obtain optimal implant position/angulation and esthetics on immediate implant placement.
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Affiliation(s)
- Po-Jan Kuo
- Department of Periodontology, School of Dentistry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chi-Yu Lin
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan.,Center for Tooth Bank and Dental Stem Cell Technology, Taipei Medical University, Taipei, Taiwan
| | - Tsung-Fu Hung
- Department of Periodontology, School of Dentistry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsien-Chung Chiu
- Department of Periodontology, School of Dentistry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsin-Yu Kuo
- Taipei Medical University, College of Dental Medicine, Taipei, Taiwan.,Department of Prosthodontics. Taipei Medical University Hospital, Taipei, Taiwan
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25
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Lim TW, Roffie J. Management of Localized Anterior Tooth Wear Using a Modified Sandwich Technique and the Dahl Concept: A Case Report. Oper Dent 2022; 47:3-10. [PMID: 35007322 DOI: 10.2341/20-172-t] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2021] [Indexed: 11/23/2022]
Abstract
This case report illustrates a minimally invasive segmental rehabilitation of localized anterior tooth wear using a modification of the sandwich technique, a combination of indirect palatal composite veneers and direct labial composite restorations, at an increased occlusal vertical dimension (the Dahl concept).
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Affiliation(s)
- T W Lim
- Tong Wah Lim, Division of Restorative Dental Sciences, Faculty of Dentistry, University of Hong Kong, Prince Philip Dental Hospital, Sai Ying Pun, Hong Kong, Hong Kong SAR
| | - J Roffie
- *Juzailah Roffie, DDS, Universiti Sains Malaysia Institut Perubatan dan Pergigian Termaju Bertam, Pulau Pinang, Malaysia
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Ohlmann B, Bömicke W, Behnisch R, Rammelsberg P, Schmitter M. Variability of sleep bruxism-findings from consecutive nights of monitoring. Clin Oral Investig 2021; 26:3459-3466. [PMID: 34862565 PMCID: PMC8979926 DOI: 10.1007/s00784-021-04314-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/22/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To determine sleep bruxism (SB) behavior during five consecutive nights and to identify correlations between SB episodes per hour (SB index) and sleep-time masseter-muscle activity (sMMA). MATERIAL AND METHODS Thirty-one participants were included in the study. Of these, 10 were classified as sleep bruxers (group SB-1) and nine as non-sleep bruxers (group non-SB). The bruxism status of these 19 patients was identified by means of questionnaires, an assessment of clinical symptoms, and electromyographic/electrocardiographic data (Bruxoff® device). The remaining 12 participants were also identified as bruxers, but based exclusively on data from the Bruxoff device (group SB-2). Data analysis included descriptive statistics and Spearman's correlation to assess the relationship between the SB index and sMMA. RESULTS Participants in group SB-1 showed an overall mean SB index of 3.1 ± 1.6 and a mean total sMMA per night of 62.9 ± 38.3. Participants in group SB-2 had an overall mean SB index of 2.7 ± 1.5 and a mean total sMMA of 56.0 ± 29.3. In the non-SB group, participants showed an overall mean SB index of 0.8 ± 0.5 and a mean total sMMA of 56.8 ± 30.3. Spearman's correlation yielded values of - 0.27 to 0.71 for the correlation between sMMA and SB index. CONCLUSIONS The data revealed variable SB activity and the absence of a reliable correlation between sMMA and the SB index. CLINICAL RELEVANCE The high variation in SB activity and lack of correlation between sMMA and the SB index should be considered when diagnosing SB. TRIAL REGISTRATION Clinical Trials [NIH], clinical trial no. NCT03039985.
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Affiliation(s)
- Brigitte Ohlmann
- Department of Prosthodontics, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
| | - Wolfgang Bömicke
- Department of Prosthodontics, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Rouven Behnisch
- Institute of Medical Biometry and Informatics (IMBI), University of Heidelberg, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
| | - Peter Rammelsberg
- Department of Prosthodontics, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
- Institute of Medical Biometry and Informatics (IMBI), University of Heidelberg, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
| | - Marc Schmitter
- Institute of Medical Biometry and Informatics (IMBI), University of Heidelberg, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
- Department of Prosthodontics, University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
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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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28
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Complicating factors in complete dentures: assessing case complexity. Br Dent J 2021; 231:451-455. [PMID: 34686807 DOI: 10.1038/s41415-021-3528-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 03/05/2021] [Indexed: 01/26/2023]
Abstract
This article aims to describe common complicating factors that impact on the success of complete denture treatment and present an overview of the challenges these pose in practice. The authors present a range of medical, oral and social factors to consider when providing treatment to edentulous patients, allowing the practitioner to identify cases which may require referral. The information is applicable to all dental practitioners, and is a useful aid to highlight complicating factors in individual patients and to make well-informed clinical decisions.
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Pozzi A, Arcuri L, Carosi P, Nardi A, Kan J. Clinical and radiological outcomes of novel digital workflow and dynamic navigation for single-implant immediate loading in aesthetic zone: 1-year prospective case series. Clin Oral Implants Res 2021; 32:1397-1410. [PMID: 34467555 PMCID: PMC9292693 DOI: 10.1111/clr.13839] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 08/04/2021] [Accepted: 08/17/2021] [Indexed: 12/30/2022]
Abstract
Objectives To evaluate clinical, radiological performance of novel digital workflow integrating dynamic navigation to streamline in one‐visit single‐implant immediate loading in aesthetic zone. Material and methods Consecutive patients requiring one single‐implant in aesthetic zone of both jaws were treated between May and September 2017. Primary outcomes were implant and prosthetic success rates, surgical and prosthetic complications, marginal bone loss (MBL), final pink aesthetic score (PES‐f), and implant stability quotient (ISQ‐f). Secondary outcomes were ISQ‐0 and PES‐0 at implant positioning and PES‐p at definitive prosthesis placement. Potential effect of jaw (maxilla vs mandible), biotype (thin vs thick), type of incision (flap vs flapless), and implant site (healed vs. post‐extractive) on the primary outcomes (MBL, PES‐f, and ISQ‐f) was evaluated through a multivariable analysis. Results Fifty‐two implants were placed (follow‐up 18.6, 15–20 months). One post‐extractive implant failed. No other surgical, biological complications occurred, accounting for 98.10% cumulative success rate (CSR). No definitive prostheses failed. Mean MBL was −0.63 ± 0.25 mm (−1.69 to −0.06). PES‐f was 12.34 ± 1.41 (9–14). ISQ‐f was 78.1 ± 3.2 (70–84). Age had significantly negative effect on MBL and PES‐f (p = .0058 and p = .0052). No other variables significantly affected primary outcomes. Conclusions Within study limitations, investigated digital workflow integrating dynamic navigation was reliable for single‐implant immediate loading in aesthetic zone in one visit. No statistically significant difference was found for MBL, PES‐f, and ISQ‐f, considering type of incision (flap vs. flapless), implant site (healed vs post‐extractive), jaw (maxilla vs. mandible), and biotype (thick vs. thin). Live‐tracked dynamic navigation may have contributed to improve operator clinical performance regardless of implant site characteristics. Further investigations are needed to confirm positive outcomes.
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Affiliation(s)
- Alessandro Pozzi
- Goldstein Center for Esthetic and Implant Dentistry, Department of Restorative Sciences, Augusta University, Augusta, GA, USA.,Private Practice Rome, Rome, Italy
| | - Lorenzo Arcuri
- Department of Chemical Science and Technologies, PhD in Materials for Health, Environment and Energy-Dentistry, University of Rome Tor Vergata, Rome, Italy
| | - Paolo Carosi
- Department of Chemical Science and Technologies, PhD in Materials for Health, Environment and Energy-Dentistry, University of Rome Tor Vergata, Rome, Italy
| | - Alessandra Nardi
- Department of Mathematics, University of Rome Tor Vergata, Rome, Italy
| | - Joseph Kan
- Department of Implant Dentistry, Loma Linda University School of Dentistry, Loma Linda, CA, USA
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Kuscu E, Klink A, Spintzyk S, Kraemer Fernandez P, Huettig F. Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing. MATERIALS 2021; 14:ma14143935. [PMID: 34300854 PMCID: PMC8307865 DOI: 10.3390/ma14143935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/12/2021] [Accepted: 07/13/2021] [Indexed: 12/12/2022]
Abstract
This in-vitro study investigates the bonding interfaces reached by the conditioning of a splint material additively manufactured by digital light processing (AM base) as well as the shear bond strength (SBS) of resins bonded to these surfaces (repair material). Therefore, the AM base was either stored in dry for 12 h or wet environment for 14 days to simulate ageing by intraoral wear. The dry and wet group was bonded after physical and/or chemical conditioning to cylinders made from polymethylmethacrylate or four novel polymers allowing splint modifications. Blasted and methylmethacrylate (MMA)-conditioned Polymethylmethacrylate (PMMA) bonded to PMMA acted as the gold standard. The surface profiles revealed highest differences of Ra towards the gold standard in AM base conditioned with other than MMA after sandblasting. The adhesively bonded repair materials of the wet AM base were further aged in wet environment for 14 days. The SBS of the gold standard (25.2 MPa and 25.6 MPa) was only reached by PMMA bonded to blasted and MMA-conditioned AM base after dry (22.7 MPa) and non-conditioned after wet storage (23 MPa). Four repair materials failed to reach the threshold of 5 MPa after dry storage and three after wet storage, respectively. Non-conditioned AM base revealed the highest risk for adhesive fractures when using other resins than PMMA.
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Affiliation(s)
- Ebru Kuscu
- Department of Prosthodontics, University Clinic of Dentistry, Oral Medicine, and Maxillofacial Surgery with Dental School, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, Germany; (A.K.); (P.K.F.); (F.H.)
- Correspondence:
| | - Andrea Klink
- Department of Prosthodontics, University Clinic of Dentistry, Oral Medicine, and Maxillofacial Surgery with Dental School, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, Germany; (A.K.); (P.K.F.); (F.H.)
| | - Sebastian Spintzyk
- Section Medical Materials Science and Technology, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, Germany;
| | - Pablo Kraemer Fernandez
- Department of Prosthodontics, University Clinic of Dentistry, Oral Medicine, and Maxillofacial Surgery with Dental School, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, Germany; (A.K.); (P.K.F.); (F.H.)
| | - Fabian Huettig
- Department of Prosthodontics, University Clinic of Dentistry, Oral Medicine, and Maxillofacial Surgery with Dental School, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, Germany; (A.K.); (P.K.F.); (F.H.)
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The effect of pre-treatment levels of tooth wear and the applied increase in the vertical dimension of occlusion (VDO) on the survival of direct resin composite restorations. J Dent 2021; 111:103712. [PMID: 34102230 DOI: 10.1016/j.jdent.2021.103712] [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] [Received: 05/04/2021] [Revised: 05/28/2021] [Accepted: 06/01/2021] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES To investigate the effects of the level of pre-treatment tooth wear and increasing the VDO on the performance of direct resin composite restorations for the rehabilitation of pathological tooth wear. METHODS Full-mouth (pre-treatment) grading was performed on digital greyscale scan records for 34 participants (35.3 ± 8.4 years) with signs of moderate-to-severe generalised tooth wear, using the Tooth Wear Evaluation System and the Basic Erosive Wear Examination. Each participant received full-mouth direct resin composite restorations, with increased VDO. The post-treatment increase in the VDO was determined. Recalls were planned after 1 month, and after 1, 3, and 5 years. Three 'levels' of restoration failure were described. The effects of the variables on the frequencies of restoration failure were calculated with a multivariable Cox regression, (p < 0.05). RESULTS 1269 restorations were placed with a mean observation period of 62.4 months. Increasing the VDO by 1 mm significantly reduced the risks of all levels of anterior restoration failure (HR ≤ 0.62, p ≤ 0.025). A higher anterior BEWE surface score was associated with increased risks of Level 2- & 3- failures, (HR ≥ 1.29, p ≤ 0.019). Premolar restorations showed lower risks of Level 2- & 3- failure, compared to the molar restorations, (HR ≤ 0.5, p ≤ 0.005). CONCLUSION Levels of pre-treatment wear and the applied change in the VDO significantly affected failure risk. CLINICAL RELEVANCE Direct resin composite restorations for the rehabilitation of wear should be made as voluminous as possible, respecting the presenting biological, functional, and esthetic constraints.
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Erdil D, Bagis N, Eren H, Camgoz M, Orhan K. Evaluation of Changes in Depression Levels of Bruxism Patients Treated With Botulinum Toxin-A. JOURNAL OF ADVANCED ORAL RESEARCH 2021. [DOI: 10.1177/23202068211006554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aim: Bruxism is defined as the involuntary recurrent masticatory muscle activity characterized by gnashing, grinding, clenching of teeth, and/or pushing the mandible. Factors creating its etiology are peripheral (morphological) or central (physiopathological and physiological), and exogenous. Recently, among physiological factors, depression and bruxism were considered to be related. A definitive treatment method does not exist for bruxism; however, botulinum toxin-A (BT-A) application is an up-to-date and effective way of treatment. The present study is aimed to evaluate the levels of depression in bruxism patients treated with BT-A application. Materials and Methods: A total of 25 individuals (23 females and 2 males) who were diagnosed as bruxism patients were included in the study. 25 U of BT-A for each masseter muscle was injected into the patients. Patients were prospectively observed for a possible change in depression levels by using Beck’s Depression Inventory. The inventory was implemented before and six months after the BT-A application. Depression levels before and six months after the injection were compared. A paired t-test was used to compare “before” and “after” treatment values. One-way analysis of variance and post-hoc Tukey tests were used to evaluate the change in Beck’s Depression Inventory scores according to age groups. Results: The mean total score was 7.80 ± 8.10 before the treatment and 7.16 ± 6.52 six months after the treatment. The decrease in the mean score was not statistically significant ( P > .05). Conclusion: In conclusion, despite the decrease in the mean Beck’s Depression Inventory scores, a statistically significant decrease in the depression levels of patients was not observed.
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Affiliation(s)
- Deniz Erdil
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Nilsun Bagis
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Hakan Eren
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Melike Camgoz
- Faculty of Dentistry, Instructors’ Dental Clinic, Gazi University, Ankara, Turkey
| | - Kaan Orhan
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara, Turkey
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Mastrogianni A, Lioliou EA, Tortopidis D, Gogos C, Kontonasaki E, Koidis P. Fracture strength of endodontically treated premolars restored with different post systems and metal-ceramic or monolithic zirconia crowns. Dent Mater J 2021; 40:606-614. [PMID: 33456031 DOI: 10.4012/dmj.2020-223] [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: 11/23/2022]
Abstract
The purpose of this study was to investigate the fracture strength of endodontically treated human maxillary premolars (ETP) restored with posts and metal ceramic (MC) or monolithic zirconia (MZ) crowns. Sixty ETP were randomly divided into 3 groups. Teeth in control group (C) received a resin filling. ETP in the MC group were restored with prefabricated metal posts, composite cores and MC crowns while in the MZ group with glass-fiber posts, composite cores and MZ crowns. Half of the specimens were loaded at a 135° angle and half under axial loading until fracture. The fracture modes were divided in repairable and irreparable using optical microscopy. Mean fracture strength was significantly higher for MC than for MZ crowns and control group only under axial loading. The distribution of repairable and irreparable failures presented no significant differences. Crown placement significantly improved the fracture strength of ETP irrespectively of post and crown type.
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Affiliation(s)
- Anna Mastrogianni
- Department of Prosthodontics, School of Dentistry, Aristotle University of Thessaloniki
| | - Evdokia-Anna Lioliou
- Department of Prosthodontics, School of Dentistry, Aristotle University of Thessaloniki
| | - Dimitrios Tortopidis
- Department of Prosthodontics, School of Dentistry, Aristotle University of Thessaloniki
| | - Christos Gogos
- Department of Endodontology, School of Dentistry, Aristotle University of Thessaloniki
| | - Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Aristotle University of Thessaloniki
| | - Petros Koidis
- Department of Prosthodontics, School of Dentistry, Aristotle University of Thessaloniki
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Tanaka Y, Yoshida T, Ono Y, Maeda Y. The effect of occlusal splints on the mechanical stress on teeth as measured by intraoral sensors. J Oral Sci 2020; 63:41-45. [PMID: 33239484 DOI: 10.2334/josnusd.20-0030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
PURPOSE Whether it is possible to prevent mechanical stress on teeth via an occlusal splint remains to be clarified. This study aimed to assess the same by simultaneously recording the occlusal pressure and strain on the teeth in humans. METHODS Eleven participants (five women and six men; mean age 25.7 years) were enrolled in this study. Hard and soft oral appliances were fabricated for the maxillary arch of each participant. The strain on the four target teeth (right maxillary and mandibular first premolars, and first molars) and occlusal pressure were concurrently measured, while the participants performed maximum voluntary teeth clenching under each condition (hard, soft, or no occlusal splint). RESULTS Compared to the absence of an occlusal splint, hard occlusal splints generated less strain on molar teeth but more strain on premolar teeth, while soft occlusal splints did not lower the strain on all target teeth significantly. CONCLUSION Considering the limitations of this study, hard occlusal splints should be used for the protection of molar teeth but for premolar teeth caution is required and depends on the case. On the other hand, soft occlusal splints may not have any benefit for the protection of either type of teeth for patients exhibiting excessive occlusal pressure.
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Affiliation(s)
- Yuto Tanaka
- Department of Special Care Dentistry, Osaka Dental University Hospital
| | - Toru Yoshida
- Department of Prosthodontics, Gerodontology, and Oral Rehabilitation, Osaka University Graduate School of Dentistry
| | - Yoshiaki Ono
- Department of Special Care Dentistry, Osaka Dental University Hospital
| | - Yoshinobu Maeda
- Department of Prosthodontics, Gerodontology, and Oral Rehabilitation, Osaka University Graduate School of Dentistry
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35
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Goldstein G, DeSantis L, Goodacre C. Bruxism: Best Evidence Consensus Statement. J Prosthodont 2020; 30:91-101. [PMID: 33331675 DOI: 10.1111/jopr.13308] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2020] [Indexed: 12/13/2022] Open
Abstract
PURPOSE The purpose of this Best Evidence Consensus Statement is to report on the prevalence, potential causes or association, treatment and cure of bruxism. MATERIALS AND METHODS A literature search limited to Clinical Trials, Randomized Controlled Trials, Systematic Reviews and Meta Analyses, with the key words bruxism, and prevalence identified 22 references, bruxism and causation 21, bruxism, and treatment 117, and bruxism and cure none. RESULTS Prevalence received 5 references which were relevant to the question researched. Causation received 11 relevant references, treatment 34 relevant references and cure none. Eighteen additional references were culled from the reference lists in the aforementioned articles. CONCLUSIONS Due to variations in demographics and the dependence on anamnestic data, the true prevalence of bruxism in any specific population is unknown. There is moderate evidence that psychosocial factors such as stress, mood, distress, nervousness, and feeling blue are associated with sleep bruxism (SB) as well as caffeine, alcohol, and smoking. There is no consensus on what symptoms of SB or awake bruxism (AB) should be treated. There is some evidence that occlusal devices and bio feedback therapies can be utilized in SB treatment. There is conflicting evidence in the use of Botulinum toxin A and no compelling evidence for the use of drug therapy to treat SB. There is not an established cure for bruxism. The clinician is best served in using caution in the dental rehabilitation of patients with severe occlusal wear.
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Affiliation(s)
| | | | - Charles Goodacre
- Advanced Education Program in Implant Dentistry, Loma Linda University School of Dentistry, Loma Linda, CA
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Murakami H, Igarashi K, Fuse M, Kitagawa T, Igarashi M, Uchibori S, Komine C, Gotouda H, Okada H, Kawai Y. Risk factors for abutment and implant fracture after loading. J Oral Sci 2020; 63:92-97. [PMID: 33311012 DOI: 10.2334/josnusd.20-0443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
PURPOSE Implant component fractures are one of the most serious complications in implant treatment. With a better understanding of the risk factors for fracture in the preoperative, surgery, superstructure, and post-loading phases of implant treatment, low-risk treatment could reduce implant component fractures, leading to a better prognosis. The aim of this study was to clarify the risk factors for abutment and implant fractures that occur after loading, and to perform a retrospective, approximately 10-year follow-up study to explore the risk factors in each treatment phase. METHODS Subjects were fitted with an implant prosthesis between January 2008 and December 2009. In total, 1,126 Ankylos implants in 430 patients were included for analysis. Binary logistic regression analysis was performed to extract factors related to non-fracture and fracture of the abutment or implant as a dependent variable. RESULTS Gender (OR = 3.466, 95% CI 1.296-9.268, P = 0.013), gonial angle (OR = 3.420, 95% CI 1.308-8.945, P = 0.012), and splinting status of the superstructure (OR = 4.456, 95% CI 1.861-10.669, P = 0.001) were identified as significant risk factors. CONCLUSION The risk of fracture is increased in males, especially those with a mandibular angle of less than 120° on panoramic radiographs, and those with a non-splinted superstructure.
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Affiliation(s)
- Hiroshi Murakami
- Department of Fixed Prosthodontics and Oral Implantology, Nihon University School of Dentistry at Matsudo
| | - Kentaro Igarashi
- Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo
| | - Megumi Fuse
- Liberal Arts (Chemistry), Nihon University School of Dentistry at Matsudo
| | - Tsuyoshi Kitagawa
- Department of Fixed Prosthodontics and Oral Implantology, Nihon University School of Dentistry at Matsudo
| | - Mitsuhiko Igarashi
- Department of Histology, Nihon University School of Dentistry at Matsudo
| | - Satoshi Uchibori
- Department of Fixed Prosthodontics and Oral Implantology, Nihon University School of Dentistry at Matsudo
| | - Chiaki Komine
- Department of Oral Health Science, Division of Laboratory Medicine for Dentistry, Nihon University School of Dentistry at Matsudo
| | - Hiroya Gotouda
- Department of Community Oral Health, Nihon University School of Dentistry at Matsudo
| | - Hiroyuki Okada
- Department of Histology, Nihon University School of Dentistry at Matsudo
| | - Yasuhiko Kawai
- Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo
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Awareness and Treatment Decisions on Tooth Wear among Jordanian Dentists and Prosthodontists: A Cross-Sectional Survey Study. Int J Dent 2020; 2020:8861266. [PMID: 33299419 PMCID: PMC7701210 DOI: 10.1155/2020/8861266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/25/2020] [Accepted: 11/02/2020] [Indexed: 02/06/2023] Open
Abstract
Objectives To assess the awareness, knowledge, and treatment decisions by dentists in Jordan regarding tooth wear. Materials and Methods A questionnaire was disseminated to a random sample of 200 general dentists and 100 prosthodontists working in the Ministry of Health, academia, private practices, and military services. Chi square and independent t-tests were performed for statistical analysis. Results Hundred and seventy-nine dentists and prosthodontists responded (59.7% response rate), of which 71.5% was females. 83.8% of the dentists reported they see patients with tooth wear. 61.5% registered wear lesions in the patient file, and 68.2% reported they find a probable cause of tooth wear. 87.2% of the dentists reported that bruxism is the most common cause in Jordan. 63.3% dentists treated their patients. 46.4% reported they “always” record a dietary history. 77.7% did not think that tooth wear is linked to caries. Low confidence levels were demonstrated among general practitioners in diagnosing and treating tooth wear. Regarding treatment decisions, most dentists decided to restore worn teeth with composite and to construct a night guard. Minimally affected anterior teeth were mostly treated with fluoride. Restoration of posterior worn teeth with overlay was suggested by one-third of the dentists. Conclusion The dentists and prosthodontists in Jordan are aware of tooth wear. However, examination and documentation were given a little priority by general dentists. On the other hand, there was an agreement among the dentists and prosthodontists on applying the minimally invasive approach. Clinical Significance. It is challenging for dentists to make the best treatment decision for tooth wear especially as no standard treatment is available. Therefore, this study investigated the awareness and treatment decisions of a sample of dentists and prosthodontists in Jordan.
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Abstract
Across the globe the population is ageing. In addition, older patients are retaining increasing numbers of natural teeth into old age. Therefore, clinicians are faced with the challenges of managing chronic dental diseases, including caries and periodontal disease, alongside replacing missing units. A number of treatment options are available to replace missing teeth for such patients with large numbers currently receiving removable partial dentures. Alternative approaches to treatment should be considered for this population group, including functionally orientated tooth replacement according to the principles of the shortened dental arch concept. In correctly chosen cases, this approach can provide patients with an acceptable, functional and aesthetic reduced dentition. Additionally, evidence suggests that such an approach can significantly reduce the maintenance burden for patients and clinicians which can ultimately deliver a more cost effective solution compared to removable alternatives.
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Affiliation(s)
- Gerry McKenna
- Senior Lecturer/Consultant in Restorative Dentistry, Centre for Public Health, Queen's University Belfast
| | - Sarra Jawad
- Consultant in Restorative Dentistry, Guy's and St Thomas' NHS Foundation Trust
| | - James Darcey
- Consultant in Restorative Dentistry, Manchester Royal Infirmary
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Ågren M, Sahin C, Pettersson M. The effect of botulinum toxin injections on bruxism: A systematic review. J Oral Rehabil 2019; 47:395-402. [PMID: 31769044 DOI: 10.1111/joor.12914] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/31/2019] [Accepted: 11/20/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To systematize evidence on the efficacy of botulinum toxin type A (BTA) in the treatment of bruxism measured through bite force or electromyography (EMG) at the masseter muscle. METHOD Identification of relevant articles through databases PubMed, Web of Science, SCOPUS, Ovid and EBSCO and manual search were performed for sources from review articles. Studies scoring less than 3 on the Jadad Scale were excluded. RESULTS Four articles were included after an exclusion of 333 articles. 3 articles measured EMG and 1 bite force. 1 article did not record a significant drop of activity, 1 article recorded reduction midway and at final endpoint. 2 articles recorded initial reduction, but a non significant difference at later follow up. CONCLUSION The available research is inconclusive and does not show enough evidence that bruxism can be treated with BTA injections. However, promising results have been shown in individual studies and further research in this area is needed.
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Affiliation(s)
- Martin Ågren
- Prosthodontic specialist clinic, Region Västerbotten, Umeå, Sweden
| | - Christofer Sahin
- Department of Dermatology and Venerology, Linköping university hospital and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Mattias Pettersson
- Department of Odontology, Faculty of Medicine, Umeå University, Umeå, Sweden
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Gaş S, Zincir ÖÖ, Bozkurt AP. Are YouTube Videos Useful for Patients Interested in Botulinum Toxin for Bruxism? J Oral Maxillofac Surg 2019; 77:1776-1783. [DOI: 10.1016/j.joms.2019.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/28/2019] [Accepted: 04/03/2019] [Indexed: 10/27/2022]
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Wetselaar P, Manfredini D, Ahlberg J, Johansson A, Aarab G, Papagianni CE, Reyes Sevilla M, Koutris M, Lobbezoo F. Associations between tooth wear and dental sleep disorders: A narrative overview. J Oral Rehabil 2019; 46:765-775. [PMID: 31038764 PMCID: PMC6852513 DOI: 10.1111/joor.12807] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 04/11/2019] [Accepted: 04/25/2019] [Indexed: 12/16/2022]
Abstract
Objectives Tooth wear is a common finding in adult patients with dental sleep disorders. The aim of this paper was to review the literature on the possible associations between tooth wear and the following dental sleep disorders: sleep‐related oro‐facial pain, oral moistening disorders, gastroesophageal reflux disease (GERD), obstructive sleep apnoea syndrome (OSAS) and sleep bruxism. Methods A PubMed search was performed on 1 June 2018 using MeSH terms in the following query: Tooth Wear AND (Facial Pain OR Temporomandibular Joint Disorders OR Xerostomia OR Sialorrhea OR Gastroesophageal Reflux OR Sleep Apnea Syndrome OR Sleep Bruxism). Results The query yielded 706 reports on tooth wear and the mentioned dental sleep disorders. Several associations between tooth wear and the dental sleep disorders were suggested in the literature. It could be concluded that: (a) tooth wear is associated with dental pain and/or hypersensitivity; (b) oral dryness is associated with tooth wear, oro‐facial pain and sleep bruxism; (c) GERD is associated with tooth wear, oro‐facial pain, oral dryness, OSAS and sleep bruxism; (d) OSAS is associated with oral dryness, GERD and sleep bruxism; and (e) sleep bruxism is associated with tooth wear. Conclusions Tooth wear is associated with the dental sleep disorders oro‐facial pain, oral dryness, GERD and sleep bruxism. The dental sleep disorders are interlinked with each other, which leads to indirect associations as well, and makes the consequences of each single condition difficult to disentangle. Knowledge of these associations is clinically relevant, but more research is needed to confirm their validity.
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Affiliation(s)
- Peter Wetselaar
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | | | - Jari Ahlberg
- Department of Oral and Maxillofacial Diseases, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Anders Johansson
- Departement of Clinical Dentistry-Prosthodontics, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Ghizlane Aarab
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Chryssa E Papagianni
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Marisol Reyes Sevilla
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Michail Koutris
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Frank Lobbezoo
- 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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Melo G, Duarte J, Pauletto P, Porporatti AL, Stuginski‐Barbosa J, Winocur E, Flores‐Mir C, De Luca Canto G. Bruxism: An umbrella review of systematic reviews. J Oral Rehabil 2019; 46:666-690. [DOI: 10.1111/joor.12801] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 04/04/2019] [Accepted: 04/10/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Gilberto Melo
- Department of Dentistry, Brazilian Centre for Evidence‐Based Research Federal University of Santa Catarina (UFSC) Florianópolis Santa Catarina Brazil
| | - Joyce Duarte
- Department of Dentistry, Brazilian Centre for Evidence‐Based Research Federal University of Santa Catarina (UFSC) Florianópolis Santa Catarina Brazil
| | - Patrícia Pauletto
- Department of Dentistry, Brazilian Centre for Evidence‐Based Research Federal University of Santa Catarina (UFSC) Florianópolis Santa Catarina Brazil
| | - André Luís Porporatti
- Department of Dentistry, Brazilian Centre for Evidence‐Based Research Federal University of Santa Catarina (UFSC) Florianópolis Santa Catarina Brazil
| | | | - Ephraim Winocur
- Department of Oral Rehabilitation Tel Aviv University Tel Aviv Israel
| | - Carlos Flores‐Mir
- Department of Dentistry, Faculty of Medicine and Dentistry University of Alberta Edmonton Alberta Canada
| | - Graziela De Luca Canto
- Department of Dentistry, Brazilian Centre for Evidence‐Based Research Federal University of Santa Catarina (UFSC) Florianópolis Santa Catarina Brazil
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Toyama N, Ekuni D, Taniguchi-Tabata A, Kataoka K, Yamane-Takeuchi M, Fujimori K, Kobayashi T, Fukuhara D, Irie K, Azuma T, Iwasaki Y, Morita M. Awareness of Clenching and Underweight are Risk Factors for Onset of Crowding in Young Adults: A Prospective 3-Year Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16050690. [PMID: 30813621 PMCID: PMC6427134 DOI: 10.3390/ijerph16050690] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/19/2019] [Accepted: 02/21/2019] [Indexed: 11/28/2022]
Abstract
Bruxism is a parafunctional activity that can seriously affect quality of life. Although bruxism induces many problems in the oral and maxillofacial area, whether it contributes to the onset of malocclusion remains unclear. The purpose of this prospective cohort study was to investigate the association between the onset of malocclusion and awareness of clenching during the daytime in young adults. Among 1,092 Okayama University students who underwent normal occlusion at baseline, we analysed 238 who had undergone a dental examination and had complete data after 3 years (2013–2016). We also performed subgroup analysis to focus on the association between awake bruxism and the onset of crowding (n = 216). Odds ratios (ORs) were calculated using multivariate logistic regression analyses. The incidences of malocclusion and crowding were 53.8% and 44.5%, respectively. In multivariate logistic regression, awareness of clenching was a risk factor for crowding (OR: 3.63; 95% confidence interval [CI]: 1.08–12.17). Moreover, underweight (body mass index < 18.5 kg/m2) was related to the onset of malocclusion (OR: 2.34; 95%CI: 1.11–4.92) and crowding (OR: 2.52, 95%CI: 1.25–5.76). These results suggest that awareness of clenching during the daytime and underweight are risk factors for the onset of crowding in young adults.
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Affiliation(s)
- Naoki Toyama
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Daisuke Ekuni
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Ayano Taniguchi-Tabata
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Kota Kataoka
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Mayu Yamane-Takeuchi
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Kohei Fujimori
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Terumasa Kobayashi
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Daiki Fukuhara
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Koichiro Irie
- Department of Microbiology and Immunology, Columbia University Medical Center, 650 West 168 Street 141 Black Building, New York, NY 10032, USA.
| | - Tetsuji Azuma
- Department of Community Oral Health, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan.
| | - Yoshiaki Iwasaki
- Health Service Center, Okayama University, Okayama 700-8530, Japan.
| | - Manabu Morita
- Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
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The Masseter Muscle and Its Role in Facial Contouring, Aging, and Quality of Life. Plast Reconstr Surg 2019; 143:39e-48e. [DOI: 10.1097/prs.0000000000005083] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Use of Digital-Conventional Method for Managing a Patient with Severely Worn Dentition: A Clinical Report. Case Rep Dent 2018; 2018:8456143. [PMID: 30581633 PMCID: PMC6276481 DOI: 10.1155/2018/8456143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 10/17/2018] [Indexed: 12/02/2022] Open
Abstract
Severe forms of attrition are frequently found in patients with no or insufficient posterior occlusal support. Management of such patients using fixed or removable prostheses is a complex procedure and is still a challenge for clinicians. The present clinical report describes step by step full mouth rehabilitation of a patient with severely worn dentition using computer-aided design/computer-aided manufacturing- (CAD/CAM-) generated wax patterns, milled zirconia frameworks, and fabrication of removable partial denture (RPD) abutments using a digital-conventional method. The results were satisfactory during 18 months of follow-up.
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Thymi M, Rollman A, Visscher CM, Wismeijer D, Lobbezoo F. Experience with bruxism in the everyday oral implantology practice in the Netherlands: a qualitative study. BDJ Open 2018; 4:17040. [PMID: 30425840 PMCID: PMC6226535 DOI: 10.1038/s41405-018-0006-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/18/2018] [Accepted: 08/07/2018] [Indexed: 12/29/2022] Open
Abstract
Objective To explore how bruxism is dealt with by accredited oral implantologists within daily clinical practice. Materials and methods Nine semi-structured interviews of oral implantologists practicing in non-academic clinical practices in the Netherlands were performed, and thematic analysis was conducted using a framework-based approach. Results Oral implant treatments in bruxing patients were a generally well-accepted practice. Complications were often expected, with most being of minor impact. Contradictive attitudes emerged on the topic of bruxism being an etiologic factor for peri-implant bone loss and loss of osseointegration. Views on the ideal treatment plan varied, though the importance of the superstructure’s occlusion and articulation features was repeatedly pointed at. Similarly, views on protective splints varied, regarding their necessity and material choice. Bruxism was diagnosed mainly by clinical examination, alongside with patient anamnesis and clinician’s intuition. There was little attention for awake bruxism. Discussion Bruxism was generally not considered a contraindication for implantological treatments by accredited oral implantologists. Views on the interaction between bruxism and bone loss/loss of osseointegration varied, as did views on the ideal treatment plan. Conclusions There is a need for better understanding of the extent to which, and under which circumstances, sleep and/or awake bruxism can be seen as causal factors for the occurrence of oral implant complications.
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Affiliation(s)
- Magdalini Thymi
- 1Section of Oral Kinesiology, Department of Oral Health Sciences, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Annemiek Rollman
- 1Section of Oral Kinesiology, Department of Oral Health Sciences, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Corine M Visscher
- 1Section of Oral Kinesiology, Department of Oral Health Sciences, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Daniel Wismeijer
- 2Section of Oral Implantology and Prosthetic Dentistry, Department of Oral Health Sciences, Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Frank Lobbezoo
- 1Section of Oral Kinesiology, Department of Oral Health Sciences, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
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Vagropoulou GI, Klifopoulou GL, Vlahou SG, Hirayama H, Michalakis K. Complications and survival rates of inlays and onlays vs complete coverage restorations: A systematic review and analysis of studies. J Oral Rehabil 2018; 45:903-920. [PMID: 30019391 DOI: 10.1111/joor.12695] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 07/07/2018] [Accepted: 07/16/2018] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The aim of this study was to identify if different types of indirect restorations used for single teeth had different biological and technical complications, as well as survival rates. METHOD An electronic search was performed in various electronic databases to identify articles, published between 1980 and 2017. The search terms were categorised into 4 groups: inlay, onlay, inlay/onlay and crown. Manual searches of published full-text articles and related reviews were also performed. RESULTS A total number of 2849 papers were retrieved initially. After a detailed assessment for eligibility, 9 studies were selected for inclusion. The heterogeneity of the studies did allow neither a meta-analysis nor any meaningful comparison between types of restorations or materials. Only some pooling was performed for representative reasons. The mean survival rate of inlays was 90.89%, while for onlays and crowns it was 93.50% and 95.38%, respectively. For the fourth study group, consisting of both inlays and onlays, the survival rate was found to be 99.43%. Statistical analysis demonstrated caries to be the main biological complication for all types of restorations, followed by a root and/or tooth fracture incidence (11.34%) and endodontic incidence. Ceramic fractures represented the most common technical complication, followed by loss of retention and porcelain chipping. CONCLUSION The 5-year survival rate for crowns and inlays/onlays is very high, exceeding 90%. An association between the kind of complications and different types of restorations could not be established. Nevertheless, a relatively high failure rate due to caries and ceramic fractures was noted.
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Affiliation(s)
- Georgia I Vagropoulou
- Department of Prosthodontics, Division of Graduate Prosthodontics, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Stefania G Vlahou
- School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Hiroshi Hirayama
- Department of Restorative Sciences and Biomaterials, Division of Graduate Prosthodontics, Henry M Goldman School of Dental Medicine, Boston University, Boston, Massachusetts
| | - Konstantinos Michalakis
- Department of Prosthodontics, Division of Graduate Prosthodontics, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.,Department of Prosthodontics, Division of Graduate and Postgraduate Prosthodontics, School of Dental Medicine, Tufts University, Boston, Massachusetts
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Coltro MPL, Ozkomur A, Villarinho EA, Teixeira ER, Vigo A, Shinkai RSA. Risk factor model of mechanical complications in implant-supported fixed complete dentures: A prospective cohort study. Clin Oral Implants Res 2018; 29:915-921. [PMID: 30043486 DOI: 10.1111/clr.13344] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 06/25/2018] [Accepted: 07/04/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVES This prospective cohort study estimated the effect of technical and clinical factors on mechanical complications in implant-supported fixed complete dentures (IFCDs). The patient's perception of the impact of oral rehabilitation on quality of life was assessed. MATERIAL AND METHODS A non-probabilistic sample consisted of 88 consecutive patients treated with 94 screw-retained, metal-acrylic IFCDs. Data collection included sociodemographic variables, presence and intensity of bruxism, maximal occlusal force, opposing arch, design of the metallic framework, distribution of occlusal contacts, and quality of life (OHIP-14). IFCD-level data were analyzed using Kaplan-Meier survival analysis and Cox regression model. Quality of life data were analyzed by paired Student t test. RESULTS During a mean follow-up of 35.1 ± 18.3 months, 16/94 IFCDs (17%) had repairable mechanical complications because of loosening/fracture of artificial teeth (n = 15) and screw loosening (n = 1). Framework design (retention pins <4 mm) was a significant risk factor for complications (HR = 11.038; p = 0.027) when adjusted for sex. Mechanical complications were not associated with sex, body mass index, thickness of the acrylic resin veneering, type of opposing arch, distribution of occlusal contacts and force, protrusion interference, presence/intensity of bruxism or maximal occlusal force. OHIP-14 total scores decreased after IFCD treatment for both patients with or without complications. CONCLUSIONS Within the limitations of this study, the results suggest that clinical success is associated to framework design with retention pins equal or longer than 4 mm. Quality of life improved with IFCD treatment, even in patients with mechanical complications.
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Affiliation(s)
- Maria Paula L Coltro
- Postgraduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Ahmet Ozkomur
- Postgraduate Program in Dentistry, Lutheran University of Brazil, Canoas, Brazil
| | - Eduardo A Villarinho
- Postgraduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Eduardo R Teixeira
- Postgraduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Alvaro Vigo
- Institute of Mathematics and Statistics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Rosemary S A Shinkai
- Postgraduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
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Abstract
This paper explains a conservative, pragmatic and minimally invasive intervention concept for the treatment of severe tooth wear patients based on the Radboud Tooth Wear Project in the Netherlands. Guidelines and flowcharts for management of severe tooth wear patients and rehabilitation in increased vertical dimension of occlusion are presented. We concluded that: (a) Restorative treatment is not always indicated, even for patients with severe tooth wear. (b) If the patient has no complaints, counselling and monitoring is probably the best option. (c) Minimally invasive and adhesive restorative strategies are preferred when severe tooth wear patients are to be treated in increased vertical dimension, especially when young patients are involved. (d) Clinical evidence for a suitable restorative treatment protocol is limited to five-year follow up for direct composites. This material seems to be suitable for rehabilitation in increased vertical dimension on the middle long term. Clinical results for indirect techniques are not available yet. (e) Restorations, including those that are considered 'definitive' may prove to have a limited lifetime in patients with severe tooth wear due to bruxism and erosion. Explanation of the possible treatment options and expected complications should be included in the informed consent.
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de Souza Melo G, Batistella EÂ, Bertazzo-Silveira E, Simek Vega Gonçalves TM, Mendes de Souza BD, Porporatti AL, Flores-Mir C, De Luca Canto G. Association of sleep bruxism with ceramic restoration failure: A systematic review and meta-analysis. J Prosthet Dent 2018; 119:354-362. [DOI: 10.1016/j.prosdent.2017.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 07/10/2017] [Accepted: 07/11/2017] [Indexed: 10/18/2022]
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