Dental malocclusion is not related to temporomandibular joint clicking: a logistic regression analysis in a patient population

Abstract

Objectives: To assess the association of several dental malocclusion features with temporomandibular joint (TMJ) click sounds in a population of temporomandibular disorder (TMD) patients. Materials and Methods: Four hundred forty-two TMD patients (72% female; 32.2 6 5.7 years, range 25-44 years) were divided into a TMJ clicking and a no-TMJ clicking group, based on the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) assessment. Seven occlusal features were recorded for each patient: (1) posterior crossbite, (2) overbite, (3) open bite, (4) overjet, (5) mediotrusive and (6) laterotrusive interferences and (7) retruded contact position to maximum intercuspation (RCP-MI) slide length. A logistic regression model was created to estimate the association of occlusal features with TMJ clicking. Results: The difference between the groups as for the prevalence of the various occlusal features was generally not statistically significant, with minor exceptions. Mediotrusive interferences (P 5 .015) and RCP-MI slide $2 mm (P 5 .001) were the two occlusal features that were associated with the probability of having TMJ clicking, even if the adjusted odds ratios for TMJ clicking were low for both variables (1.63 and 1.89, respectively). Moreover, the amount of variance in the prevalence of TMJ clicking that was predicted by the final model was as low as 4.5% (R 2 5 0.045). Conclusions: Findings from the present investigation suggested that in a population of TMD patients, the contribution of dental malocclusion features to predict TMJ click sounds is minimal with no clinical relevance. (Angle Orthod. 2014;84:310-315.)

Association of malocclusion, self-reported bruxism and chewing-side preference with oral health-related quality of life in patients with temporomandibular joint osteoarthritis

“…Other clinical signs of TMJ‐OA include joint tenderness, crepitus, radiographic bony changes and joint space narrowing. In past decades, dental occlusion was thought to have a dominant effect on the onset as well as the management of TMDs. Some analytical studies show that occlusal factors act as risk indicators for the development of TMDs and may decide the patterns of load distributions on the TMJ, thus impacting resistance of the musculoskeletal system.…”

“…In past decades, dental occlusion was thought to have a dominant effect on the onset as well as the management of TMDs. Some analytical studies show that occlusal factors act as risk indicators for the development of TMDs and may decide the patterns of load distributions on the TMJ, thus impacting resistance of the musculoskeletal system. However, recent evidence does not support a role for malocclusion in the aetiology of TMDs.…”

Orthodontics is temporomandibular disorder–neutral

“…1 Based on such an ongoing paradigm change, a much-diminished role is assigned to the features of natural dental occlusion as risk factors for TMD, in favor to central factors (ie, psychological and psychosocial factors, pain sensitivity, genetic determinants). [2][3][4] Based on findings from some investigations [5][6][7][8] that may show a higher prevalence of TMD in malocclusion patients compared to the normal population, there are still some communities of professionals claiming 9,10 that the correction of purported abnormalities of dental occlusion should be recommended to manage and prevent TMD. Such an approach is actually not supported, and systematic reviews of the literature provide evidence-based recommendations that there is a lack of causal relationship between TMD and occlusion; they also offer evidence that irreversible occlusal treatments are not more useful than conservative treatment alone to either manage or prevent TMD.…”

Importância da inter-relação entre oclusão e dentística restauradora na busca por um sorriso estético e funcional: uma revisão de literatura

“…Porém, quando essa capacidade adaptativa é ultrapassada, danos a essas estruturas, podem ocorrer 9 . No entanto, a associação entre a má oclusão e a ocorrência de distúrbios temporomandibulares (DTM) requer investigações mais aprofundadas 10 .…”