Sánchez-Pérez, LeonorIrigoyen-Camacho, María-EstherMolina-Frechero, NellyMendoza-Roaf, PatriciaMedina-Solís, CarloAcosta-Gío, EnriqueMaupomé, Gerardo2022-11-032022-11-032013Sanchez-Perez L, Irigoyen-Camacho ME, Molina-Frechero N, Mendoza-Roaf P, Medina-Solís CE, Acosta-Gío EA, Maupomé G. Malocclusion and TMJ disorders in teenagers from private and public schools in Mexico City. Medicina Oral Patologia Oral Cirugia Bucal. 2013;18(2):e312-8.https://hdl.handle.net/1805/30457Objective: To identify, among Mexican teenagers from public and private schools, the frequency, severity of malocclusion and orthodontic treatment needs, and their possible association with temporomandibular joint disorders. Material and methods: Fifteen-year-old students were recruited from public and private schools. Clinical findings were registered as follows: oral hygiene status with the Oral Hygiene Index-Simplified, malocclusion using the Dental Aesthetic Index (DAI), and TMJ disorders following WHO criteria. Negative binomial and logistic regression models were constructed for data analysis. Results: A total of 249 fifteen-year old students were included in the study (118 female 47.4%). 68% had a DAI score ≤ 25 (minor or no occlusal anomalies), 18% scored 26-30 (mild anomalies), 7% scored 31-35 (evident anomalies), and 6% scored ≥ 36 (major malocclusion). The most frequent anomalies were dental crowding in 50%, maxillary dental irregularity in 44.6%, mandible irregularity in 41.2% and excessive maxillary overjet in 37.8%. Among the students, 26.1% had clicking/muscle or TMJ pain, of these 12.3% showed pain during palpation. OHI-S > 1 was found in 34% of the participants. The negative binomial model showed an association between DAI score and TMJ disorders (P=0.041). Also the logistic regression model showed an association between malocclusion (DAI>25) and TMJ disorders (OR=2.58, p=0.002). Malocclusion was associated also with poor oral hygiene (OR=1.65, p=0.007), and with attendance to public schools (OR=1.97, p=0.039). Conclusions: TMJ disorders and DAI scores were significantly associated. Screening/Diagnostic programs for orthodontic and TMJ-disorders are needed, to identify and offer treatment to teenagers with major malocclusion and TMJ/muscle pain.en-USAttribution-NonCommercial-NoDerivatives 4.0 InternationalDental Aesthetic IndexTooth crowdingTemporo Mandibular Joint disorders (TMJ disorders)Temporo Mandibular Disorders (TMD)occlusal anomaliesArticle