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Craniomandibular disorders in unilateral lower free end dental arch subjects with and without removable partial dentures (RPD): a cross sectional study using the craniomandibular index (CMI)

In this study a survey of 102 patients, 78 female and 24 male, aged between 18 and 61 years, was carried out in order to evaluate the severity of signs and symptoms of craniomandibular disorder (CMD). In each case, the degree of severity of the CMD was recorded following a score methodology according to clinical history, examination and study models. The following groups were observed: a) 34 patients wearing removable partial dentures (RPD) with unilateral absence of teeth (Kennedy’s Class II); b) 34 patients not wearing removable partial dentures with unilateral absence of teeth, and c) 34 patients with complete dental arches. All subjects in this survey presented some degree of pain or muscle discomfort. The results showed statistically significant differences between the three groups: the non RPD, partially edentulous subjects, with absence of teeth for more than 5 years had the worst degree of severity of signs and symptoms of CMD. It was concluded that the main signs and symptoms can be reliably evaluated utilizing this (CMI) score methodology.

Craniomandibular disorders; Temporomandibular dysfunction; Myofascial pain dysfunction


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