Temporomandilar disorders prevalence in patients with lower bilateral free end / Prevalência das desordens temporomandibulares em pacientes com extremidade livre bilateral inferior

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

Prevalence of temporomandibular disorders (TMD) among the people has been evident for a long time by means of signs and symptoms. The aim of this study is to determine the prevalence of main TMD, considering the most common kinds described by Dworkin and LeResche (1992). Material and Methods: patients with lower bilateral free end who appeared at the Dentistry Clinic of Brasilia University and Catholic University from Brasilia in 2006. 102 patients with lower bilateral free end wearing or not removable partial prosthesis (RPP) were examined. A questionnaire was carried out approaching psychosocial features and a form approached features about a physical exam. Both of them were applied by one examiner. Both are part of a Research Diagnostic Criterium for temporomandibular disorders (RDC/ TMD). The prevalence index was calculated with the help of the statistics pack R (version 2.5.0 R Development Core team, 2007). Results: In the studied sample, the prevalence was of 16.7% ; the disc displacement had a reduction of 10.8% ; arthralgia, osteoarthritis and osteoarthrosis had 20.6 %, 24.5% and 25.5% respectively. One individual alone presented disc displacement without any reduction. The patients who wore RPP showed a prevalence of TMD of 58.8% . The others who never wore RPP showed 73.8%. However, patients who own it but did not wear it, showed 80.7% of prevalence. The relative frequency of TMD among patients from 20 to 39 years; from 40 to 59 years and those over 60 years had the same frequency. In group of patients from 20 to 39 years the highest prevalence was for miofascial pain with limited opening as well as arthralgia. Among patients from 40 to 59 years, the most prevalent diseases were osteoarthritis and osteoarthrosis. Patients over 60 years showed a higher prevalence of arthralgia and osteoartrosis. In relation to the gender, the prevalence of TMD among men was of 71.4% and among women of 70.3% . Conclusions: a) TMD prevalence among patients with bilateral free end, in the sample, was of 70.6%. b) from this sample, TMD that attacked the temporomandibular joint was the most prevalent, presenting osteoarthitis and osteoarthrosis the highest indexes; c) patients who did not wear RPP presented relative frequencies of TMD higher than the ones who wore it; d) the age and gender did not present big differences in the prevalence values ; e) TMD prevalence was similar among patients from 0 to 2 and from 3 to 4 occlusal units.

ASSUNTO(S)

arco encurtado desordens temporomandibulares extremidade livre temporomandibular disorders ciencias da saude free end shortened arches

ACESSO AO ARTIGO

Documentos Relacionados