Relationship between occlusal factors and signs and symptoms of mandibular dysfunction: A clinical study of 48 dental students

Abstract

Forty-eight young adults answered a questionnaire and were examined clinically for determination of symptoms and signs of mandibular dysfunction in accordance with the Helkimo indices. Occlusal conditions recorded included contacts in centric and excentric mandibular positions in accordance with specified criteria for registration of "ideal occlusion', various occlusal patterns, occlusal interferences, and dental attrition. Relatively frequent but mainly mild signs and symptoms of mandibular dysfunction were found. The occlusal conditions were extremely varied and did not show any significant correlations with signs and symptoms of mandibular dysfunction.

Occlusal variables, bruxism and temporomandibular disorders: a clinical and kinesiographic assessment

“…Droukas et al (1984) found a negative correlation between awareness of bruxism and signs of mandibular dysfunction in a group of young students. Recently, Ware & Rugh (1988) suggested that there may be two types of bruxing patients, one bruxing more during rapid eye movement (REM) sleep and one bruxing more during the non-REM phases.…”

Relationship between sleeping occlusal contact patterns and temporomandibular disorders in the adult Japanese population

“…Some epidemiological studies have found associations between occlusal factors and bruxism [3,6,19] and between occlusal factors and symptoms of temporomandibular disorders (TMD) [5], indicating that certain occlusal conditions related to bruxism are potential risk factors for TMD. However, another study does not support these associations because many factors are combined to cause the TMD [4]. Although many theories have been proposed since the 1960s, the etiology of bruxism is still unknown.…”

Intraoral Myofascial Therapy for Chronic Myogenous Temporomandibular Disorder: A Randomized Controlled Trial

“…[27][28][29] Studies investigating relationships between the occlusion, dental attrition, articular degeneration, alveolar bone changes, and TMD have shown mixed results. [30][31][32][33] Traditionally held beliefs about the role of so-called parafunctional activities (bruxism-clenching and grinding) in the onset of TMD have also not been found to be conclusive. [34][35][36][37][38] Where these activities have been identified as factors in TMD, they have usually been identified as part of a wider (particularly psychoemotional) health concern.…”