Correlation between parafunctional habits and temporomandibular dysfunction: Systematic review / Correlção entre hábitos parafuncionais e disfunção temporomandibular: Revisão sistemática

Abstract

Introduction: Temporomandibular dysfunction (TMD) is a term belonging to the orofacial pain group that affects the masticatory muscles, temporomandibular joint and adjacent structures. TMD can be triggered by parafunctional habits, which are actions performed without specific natural function of the human being, becoming risk factors. Objectives: To evaluate through a literature review the correlation between parafunctional habits and temporomandibular dysfunctions. Methods: The articles were researched in the PubMed and Scielo databases, from 2009 to 2019. As inclusion criteria: articles published in English and Portuguese with the key words "Temporomandibular Joint", "Parafunctional Habits" and "Temporomandibular Dysfunction". Themes that were not related to the theme were excluded. Results: Eight articles were selected, in which six of them correlated the parafunctional habits with the signs and symptoms of TMD. Through these studies, it was seen that people develop a painful symptomatology, affecting even quality of life. In parallel, through other articles, there is a possible relationship between the intensity of physical activity with the degree of TMD found, and also the emergence of certain habits after certain surgeries. Conclusion: It is remarkable the correlation between the various parafunctional habits and TMD. Thus, the dentist should be paid, during diagnosis, to their presence and consider, as part of the treatment, guidelines for the reduction of these habits, obtaining success in controlling dysfunction