Relationship Between Orthodontics and Temporomandibular Disorders: A Prospective Study (original) (raw)
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Cranio : the journal of craniomandibular practice, 2017
The aim of this study was to identify clinical factors predisposing to the development or worsening of temporomandibular disorders (TMDs) following orthodontic surgical treatment for Class III malocclusion. A retrospective cohort study was performed on 88 patients with Class III malocclusion having undergone a combined orthodontic and orthognathic surgical treatment. Temporomandibular joint and masticatory muscle examinations were available prior to treatment and one year post-operatively. Multivariate logistic regression was used to predict the development of post-operative TMDs, and linear regression was used to predict the worsening of TMDs using Helkimo indices. Patients with Class III malocclusion presenting with pre-treatment anamnestic TMJ clicking (OR = 5.8; p = 0.03) and undergoing bimaxillary osteotomy procedures (OR = 18.6; p = 0.04) were more at risk for the development of TMDs. TMDs must be evaluated, monitored, and managed with caution in patients with Class III malocc...
Orthodontics is temporomandibular disorder–neutral
The Angle Orthodontist, 2015
Objectives: To assess if subjects with a clinical diagnosis of temporomandibular disorders (TMDs) have a similar prevalence of orthodontic history as a population of TMD-free individuals and to assess if those subjects who have a history of ideal orthodontics have fewer symptoms than those with a history of nonideal orthodontics. Materials and Methods: Two groups of age- and sex-matched individuals belonging to either a study (“TMD”) or a control group were recruited. Subjects who underwent orthodontic treatment were classified as having a history of ideal or nonideal orthodontics based on the current presence of normal values in five reference occlusal features. Results: The correlation with a history of orthodontic treatment was not clinically significant for any of the TMD diagnoses (ie, muscle pain, joint pain, disc displacement, arthrosis), with Phi (Φ) coefficient values within the −0.120 to 0.058 range. Within the subset of patients with a history of orthodontics, the corr...
Effect of Orthodontic Treatment on Temporomandibular Joint. A Review
2020
Introduction: The morphology of temporomandibular joint varies among individuals and the most important factor that could affect its shape is functional load impacted on it. This depends on the closed association between the morphology and function which demonstrates that presumed differences in condyle-fossa position and morphology among subjects vary with different types of malocclusion. The objective of this literature review is to determine the temporomandibular joint characteristics in response to orthodontic treatment. Materials and Methods: A web-based search was carried out using electronic databases such as PubMed, Science Direct and Google scholar between the year 2007 to 2017 with a focus on longitudinal studies, Prospective, Casecontrol, Retrospective and Randomized Controlled Trials. Results: 60 studies were searched in which 21 articles have been selected based on inclusion criteria. Among these studies, 2 were randomized controlled trials, 15 were prospective longitud...
Temporomandibular disorders and occlusion effect on orthodontic treatment
International Journal Of Community Medicine And Public Health
Evidence in the literature indicates the significant association between temporomandibular joint disorders and orthodontic treatment. As a result of the epidemiological investigations that indicated the high prevalence of temporomandibular disorders among patients with malocclusions, it has been suggested that there might be a cause-and-effect correlation between both of these conditions. Evidence in the literature is inconsistent regarding the association between temporomandibular joint disorders and malocclusion, and orthodontic treatment. In the present literature review, we have discussed the different aspects of temporomandibular disorders and malocclusion and their relation to orthodontic treatment approaches. Among the different studies in the literature, solid evidence indicates a significant association between temporomandibular joint disorders and malocclusion, and accordingly, research aimed to study the impact of orthodontic treatment on curing and preventing the develop...
International journal of oral and maxillofacial surgery, 2007
The aim of this longitudinal study was to determine the effects of orthognathic surgery on signs and symptoms of temporomandibular disorders (TMD) and on pressure pain thresholds (PPTs) of the jaw muscles. Fourteen consecutive class III patients undergoing pre-surgical orthodontic treatment were treated by combined Le Fort I osteotomy and bilateral sagittal ramus osteotomy. The clinical examination included the assessment of signs and symptoms of TMD and the assessment of PPTs of the masseter and temporalis muscles. Anamnestic, clinical and algometric data were collected during five sessions over a 1-year period. Seven out of 14 patients presented with disc displacement with reduction at baseline, whereas four patients (two of them were new cases) did so at the end of follow up (p>0.05). None of the patients were diagnosed with myofascial pain of the jaw muscles at the beginning or end of follow up. PPTs of the masseter and temporalis muscles did not change significantly from bas...