Background and Aim: This study aimed to assess the prevalence of temporomandibular disorders and associated variables among adolescent. This concept admits the possibility of non-existence of a direct relationship between tissue damage and pain and emphasizes the subjectivity in interpretation of painful phenomenon. Due to high prevalence and variability of the complaints, TMD is diagnosed by associating signs and symptoms. This study is based on questionnaire proposed by Fonseca, used to classify TMD severity in the study population because it is highly efficient in obtaining epidemiological data. The Fonseca’s questionnaire follows the characteristics of a multidimensional evaluation. Results were analyzed using the frequency distribution of the questionnaire answers according to the Fonseca’s anamnestic index. Based on the results of interim analyses, the subjects were divided into 2 groups: with and without, the TMD. Positive answers in both groups were analyzed by the total percentage.
