Oral behaviors, bruxism, malocclusion and painful temporomandibular joint clicking: is there an association?

Autor(es)

Rodrigo Lorenzi POLUHA ^[1] ; Giancarlo De la Torre CANALES ^[2] ; Leonardo Rigoldi BONJARDIM ^[3] ; Paulo César Rodrigues CONTI ^[4]

Afiliação do(s) autor(es)

^[1] Universidade de São Paulo. Bauru School of Dentistry. Department of Prosthodontics - Brasil

^[2] Universidade de São Paulo. Bauru School of Dentistry. Department of Prosthodontics - Brasil

^[3] Universidade de São Paulo. Bauru School of Dentistry. Department of Biological Sciences - Brasil

^[4] Universidade de São Paulo. Bauru School of Dentistry. Department of Prosthodontics - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Oral Research; v. 35, 2021-08-06.

Resumo

Abstract The present cross-sectional case-control study aimed to determine if there is an association between specific oral behaviors, sleep bruxism (SB), awake bruxism (AB), and painful temporomandibular joint (TMJ) clicking. Ninety individuals were dived into three groups; Group 1 (n = 30): painful TMJ clicking; Group 2 (n = 30): painless TMJ clicking; and Group 3 (n = 30): control group. The following clinical data were studied: oral behaviors (unilateral chewing, gum chewing, nail biting, foreign objects biting, leaning with jaw against the hand, and sleeping in a position that pressures the jaw), SB, AB (including the frequency in 10 days, evaluated by ecological momentary assessment), and malocclusions investigated based on clinical inspections (anterior open bite, posterior cross-bite, abnormal overbite/overjet, occlusal guidance, mediotrusive and/or laterotrusive interferences, retruded contact position to maximum intercuspation slide, missing posterior teeth). All statistical tests (Kolmogorov-Smirnov, chi-square, and one-way ANOVA) were performed with a 5% significance level. Group 1 had the highest frequency of and a significant association with leaning with jaw in the hand, sleeping position that pressures the jaw, gum chewing, nail biting, and AB (p<0.05). Gum chewing, nail biting, and AB were associated with Group 2 only when compared to Group 3 (p<0.05). No significant difference among groups was found for other behaviors (unilateral chewing and foreign objects biting), SB, and all malocclusions (p>0.05). It can be concluded that patients with painful TMJ clicking had a higher frequency of and a significant association with some specific harmful behaviors and AB. (AU)

• Processo FAPESP: 17/21674-0 - Comparação da eficácia da toxina botulínica tipo A em pacientes com dor orofacial crônica refratária, de acordo com diferentes perfis somatosensoriais
• Beneficiário: Giancarlo de La Torre Canales
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado