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Mélou C, Leroux L, Bonnesoeur M, Le Padellec C, Bertaud V, Chauvel-Lebret D. Relationship between natural or iatrogenic malocclusions and temporomandibular disorders: A case control study. Cranio 2024; 42:206-214. [PMID: 34061714 DOI: 10.1080/08869634.2021.1933307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To investigate the link between malocclusions and temporomandibular disorders (TMD) with a focus on iatrogenic malocclusion. Other etiologies of TMD (oral parafunctions) were also assessed. METHODS The prevalence of malocclusions was correlated in two groups: patients with TMD (case group) and patients without TMD (control group). Malocclusions involving dental care were specified. Parafunctions in the case group were assessed. RESULTS A statistically significant association between TMD and overbite >4 mm, interferences in laterotrusion, and absence of Angle Class I was shown. A potential deleterious effect of iatrogenic malocclusions was highlighted. CONCLUSION The multifactorial etiology of TMD was confirmed because an association between TMD and three malocclusions was found, and all case patients had parafunction(s). Current recommendations advising first a reversible treatment, TMD care should start with a behavioral re-education to remove parafunctions. However, it is essential to avoid creating iatrogenic malocclusion during dental care.
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Affiliation(s)
- Caroline Mélou
- Odontology Department, Rennes, France, Training and Research Unit of Odontology, University of Rennes, University Hospital Center of Rennes, Rennes, France
| | | | | | | | - Valérie Bertaud
- Odontology Department, Rennes, France, Training and Research Unit of Odontology, University of Rennes, Inserm, LTSI (Signal and Image Processing Laboratory), Rennes, France, University Hospital Center of Rennes, Rennes, France
| | - Dominique Chauvel-Lebret
- Odontology Department, Rennes, France, Training and Research Unit of Odontology, University of Rennes, CNRS, ISCR (Institute of Chemical Sciences of Rennes), University Hospital Center of Rennes, Rennes, France
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Duval F, Leroux A, Bertaud V, Meary F, Le Padellec C, Refuveille L, Lemaire A, Sorel O, Chauvel-Lebret D. [Relations between extraction of wisdom teeth and temporomandibular disorders: a case/control study]. Orthod Fr 2015; 86:209-219. [PMID: 26370592 DOI: 10.1051/orthodfr/2015021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 02/02/2015] [Indexed: 06/05/2023]
Abstract
The aim of this study was to assess the impact of extraction of third molars on the occurrence of temporo-mandibular disorders (TMD). A review of the literature and a case-control study have been conducted. The case-control study compares the frequency of extraction of third molars between the sample with TMD (case) and the sample without TMD (control). The proportion of patients who had undergone extractions of wisdom teeth was higher in the case group than in the control group. The difference was statistically significant when patients had undergone extraction of all four wisdom teeth or when the extraction of four wisdom teeth underwent in one sitting or under general anesthesia. The study of patients in case sample shows that all signs of TMD were more common in patients who had undergone extractions in several sessions and under local anesthesia. The temporomandibular joint sounds are significantly more frequent with local anesthesia. In the case group, 85 to 92% of patients have parafunctions and 5 to 11% have malocclusion. This demonstrates the multifactorial etiology of temporomandibular disorders.
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Affiliation(s)
| | | | - Valérie Bertaud
- UMR INSERM 1099 - UFR d'Odontologie, Université de Rennes 1, Université Européenne de Bretagne, 2 avenue du Pr Léon Bernard, Bâtiment 15, 35043 Rennes Cedex, France - CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 place Pasteur, 35000 Rennes, France
| | - Fleur Meary
- Laboratoire de Biomatériaux en Site Osseux, UMR CNRS 6226, UFR d'Odontologie, Université de Rennes 1, Université Européenne de Bretagne, 2 avenue du Pr Léon Bernard, Bâtiment 15, 35043 Rennes Cedex, France - CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 place Pasteur, 35000 Rennes, France
| | - Clément Le Padellec
- UFR d'Odontologie, Université de Rennes 1, Université Européenne de Bretagne, 2 avenue du Pr Léon Bernard, Bâtiment 15, 35043 Rennes Cedex, France - CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 place Pasteur, 35000 Rennes, France
| | - Laura Refuveille
- CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 place Pasteur, 35000 Rennes, France
| | - Arnaud Lemaire
- CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 place Pasteur, 35000 Rennes, France
| | - Olivier Sorel
- UFR d'Odontologie, Université de Rennes 1, Université Européenne de Bretagne, 2 avenue du Pr Léon Bernard, Bâtiment 15, 35043 Rennes Cedex, France - CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 place Pasteur, 35000 Rennes, France
| | - Dominique Chauvel-Lebret
- Laboratoire de Biomatériaux en Site Osseux, UMR CNRS 6226, UFR d'Odontologie, Université de Rennes 1, Université Européenne de Bretagne, 2 avenue du Pr Léon Bernard, Bâtiment 15, 35043 Rennes Cedex, France - CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 place Pasteur, 35000 Rennes, France
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