Lesões cervicais não cariosas: prevalência, severidade e correlação com fatoresetiológicos

by Leão e, Fernanda Martins

Abstract (Summary)
This study had the aim to identify the presence and the severity of noncariouscervical lesions (NCLs) and correlate them to the occurrence of prematuredental contacts and to the risk factors involved in this development. There hadbeen evaluated 66 patients of both genders, with age between 15 and 70 years,involving 1,863 teeth, which had been examined in accordance with criteria foridentification of NCLs, wear facets and occlusals prematurities. The individualshad answered to the questionnaire related to the age, gender, gastrointestinalproblems, medication use, dentin hypersensitiveness, diet and parafunctionalhabits. The evaluation of wear facets was achieved by means of visualinspection of the occlusal and incisal faces of teeth. In the identification ofcervical lesions, the vestibular and lingual or palatine faces of teeth had beenexamined with periodontal probing located parallel to the long axis of the tooth.The teeth with NCLs had been evaluated as regards the severity, using thetooth wear index (TWI), and later examined with relation to the occlusion incentric relation (CR), maximal habitual intercuspation (MHI) and in theexcursion movements. Two thirds of the individuals had presented the total of273 cervical lesions. As regards to the distribution of lesions for group of teeth,the premolars had presented greater frequency, followed for molars and theincisors and canines with lesser frequency. The same trend was observed forwear facets. It had positive correlation between the presence of NCLs and theocclusals prematurities. For the data gotten with questionnaire, the Chi-Squaretest (?=.05) demonstrated difference between the individuals with and withoutlesion for age, parafunctional habit and dentin hypersensitiveness. The mostfrequent TWI was which lesions had less than 1 mm. When analyzing the riskfactors involved in noncarious cervical lesions, suggest the parafunctionalshabits and occlusals prematurities as the etiology agents with greater potentialto develop them.
This document abstract is also available in Portuguese.
Bibliographical Information:

Advisor:Marlete Ribeiro da Silva; Sigmar de Mello Rode; Alfredo Júlio Fernandes Neto

School:Universidade Federal de Uberlândia

School Location:Brazil

Source Type:Master's Thesis



Date of Publication:03/14/2006

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