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International Journal of Morphology

versión On-line ISSN 0717-9502


CORSINI, Gilda et al. Temporomandibular disorders signs and symtoms determination of 13 to 18 years old students from a school in Temuco, Chile. Int. J. Morphol. [online]. 2005, vol.23, n.4, pp.345-352. ISSN 0717-9502.

Temporomandibular disorders (TMD) has been descrited as "Collective terms that involucre several clinical problems that compromise masticatory musculature, joints and associated structures". Epidemiologic studies have reported that there are common in children and adolescents. Showing prevalences ranging from 6% to 68% and 75% of adult population show some kind of functional alteration. The purpose of this study was to determine the prevalence of TMD signs and symptoms non existent in this commune, stablish the design effect for grade to calculate sample size for populational study and to determine stability of the test. Cross sectinal study with non probabilistic (by convenience) sample and informed consent, taken from 116 students from the Baptist School of Temuco, who answered a test inquiring about subjective symptoms and then they were clinically examinations looking for signs, like: alterations, limitations or desviations of mandibular motion; pain to joint and muscular palpation; noises and bruxism. Autoreport Test: 77.6% repot one or more symptoms, articular noise 37.9%; to feel jaw rigid 23.1% and headache, nape and temple, 35.3% Clinically: 85.3% showed one or more TMD signs; 50% joint noise; 8.6% mouth opening alteration; 18.1% diminished lateral motion; 8.6% tenderness to joint palpation; 4.3% tenderness to palpation an temporalis muscleand 6% masseterus; 46:6% showed any bruxism manifestation. Correlation between this signs with gender and age showed only significant differences for age with mouth opening and Bruxism (p<0.05) There is agreement between what was perceived by the adolescents and what was clinically obsrved in maximun opening, chewing difficulty, noise and tendernees to joint palpation. In the analysis of the test and retest, great correlations was found between the answers. No statistically significant differences were found between signs and symptoms with gender. Desing effect: 1.23

Palabras clave : Temporomandibular disorders; Sings and symptoms TMD; Prevalence.

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