ABSTRACT
OBJECTIVE: The aims of this study were to compare the prevalence of temporomandibular disorders (TMD) in individuals submitted to either orthodontic or ortho-surgical Class III malocclusion treatment and to assess the influence of occlusal aspects on TMD severity. MATERIAL AND METHODS: The sample consisted of 50 individuals divided into two groups, according to the type of treatment (orthodontic or orthodontic with orthognathic surgery). The presence of signs and symptoms of TMD was evaluated by an anamnestic questionnaire and a clinical examination, including TMJ and muscle palpation, active mandibular range of motion, joint noises and occlusal examination. RESULTS: Based on the anamnestic questionnaire, 48 percent had no TMD, 42 percent had mild TMD and 10 percent had moderate TMD. The presence and severity of TMD did not show any relationship with the type of orthodontic treatment (p>0.05). The chi-square test showed a positive association (p<0.05) between TMD and non-working side occlusal interferences. CONCLUSION: Based on the methodology used and the results obtained, it may be concluded that Class III orthodontic treatment was not associated with the presence of TMD signs and symptoms and the non-working side contacts can be occlusal factors of risk. There was no significant difference in TMD prevalence between the studied groups (orthodontically treated patients and patients treated with orthodontics followed by orthognathic surgery).
ABSTRACT
A presença de diastemas na região ântero-superior representa uma má oclusão comum em pacientes com perda de suporte periodontal e prejudicam a estética do sorriso. O tratamento ortodôntico, nestes casos, deve ser realizado com cuidados como recuperação da saúde periodontal prévia e manutenção da mesma durante e após a movimentação ortodôntica. Além da realização do tratamento ortodôntico em um meio livre de inflamação causada pela doença periodontal outros cuidados são importantes como uma mecânica simples com forças extremamente suaves. Com estes cuidados o movimento ortodôntico pode ser realizado livre dos perigos de agravamento da perda óssea e da reabsorção periapical.
The presence of diastema in maxillary arch is a common malocclusion in patients with periodontal disease and they harm the aesthetic smile. The orthodontic treatment must be carried through with cares as recovery of previous the periodontal health and maintenance of the same during and after the orthodontic movement. Beyond the accomplishment of the treatment orthodontic in a free way of inflammation caused for the periodontal disease others care are important as simple mechanics with forces extremely soft. With these cares the orthodontic movement can be carried through free of aggravation of the periodontal disease and the periapical resorption.