Prevalence of bruxism in undergraduate students

• Published in: Cranio Vol. 35; no. 5; p. 298
• Main Authors: Soares, Luana Goés, Costa, Igor Reali, Brum Júnior, Jadimar Dos Santos, Cerqueira, Wyllerson Silveira Bronzon, Oliveira, Evandro Silveira de, Douglas de Oliveira, Dhelfeson Willya, Gonçalves, Patricia Furtado, Glória, José Cristiano Ramos, Tavano, Karine Tais Aguiar, Flecha, Olga Dumont
• Format: Journal Article
• Language: English
• Published: England 03.09.2017
• Subjects: Adolescent; Adult; Brazil - epidemiology; Bruxism - complications; Bruxism - epidemiology; Bruxism - psychology; Cross-Sectional Studies; Female; Humans; Male; Myalgia - complications; Prevalence; Stress, Psychological - complications; Students - psychology; Students - statistics & numerical data; Temporomandibular Joint Disorders - complications; Young Adult; dental wear facets; prevalence; Bruxism; temporomandibular joint dysfunction; psychological stress; temporomandibular disorders
• ISSN: 2151-0903
• DOI: 10.1080/08869634.2016.1218671

The aim of this study was to determine the prevalence of bruxism in students at the Federal University of the Jequitinhonha and Mucuri Valleys in Brazil. The secondary objectives were to identify the factors associated with bruxism; prevalence of dental wear; and to distinguish the signs and symptoms of temporomandibular dysfunction when present, and verify its relationship with bruxism. Two hundred fifty-three students (106 males, 147 females) were clinically examined and answered a questionnaire. Trained researchers performed the dental wear evaluation. The incisal edge and occlusal surface were classified as follows: no wear, wear into enamel, wear into dentin, and extensive wear into dentin. Demographic data and factors related to bruxism were obtained by a questionnaire. The participants who presented dental wear and habit of clenching/grinding teeth were classified as bruxers. The data were analyzed by the SPSS program (p < 0.05). The results showed that 31.6% of the students had bruxism. Of the 7084 teeth evaluated, 376 (5.3%) had some type of facet wear. The teeth that had the highest prevalence of wear facets were the canines. Stress, muscle pain, temporomandibular joint (TMJ) pain, and TMJ noise were significantly associated with bruxism (p < 0.001). The prevalence of bruxism was 31.6% in this population. The factors most associated with bruxism were stress, muscle pain, TMJ pain, and TMJ noise.