Personality disorder and temporomandibular joint dysfunction

Abstract

Introduction: There is a prevalence of temporomandibular joint dysfunction which is related to personality disorders, due to the moods experienced by these patients. Objective: Determine the comorbidity of personality disorders and temporomandibular joint dysfunction. Methods: A cross-sectional observational descriptive study was conducted at the Orthodontics service during one year, from February 2017 to 2018. The study universe was 250 patients, of whom a sample of 64 was selected by simple random sampling on the basis of inclusion criteria. The presence of temporomandibular dysfunction was determined by Maglione and collaborators' dysfunction index. Results: Temporomandibular joint dysfunction was found in 57 patients, of whom 46.87 % had dysfunction class II (moderate), and 89.06% had some sort of personality disorder, such as histrionic (25.00 %) or obsessive-compulsive personality (26.56 %). Conclusions: In most of the patients examined a relationship was found between personality disorders and temporomandibular joint dysfunction, showing that there is comorbidity between the two conditions.

Keywords

• disfunción de la articulación temporomandibular
• trastornos de la personalidad
• comorbilidad.