tailieunhanh - Industrial noise and tooth wear – experimental study

Tooth wear is a complex multifactorial process that involves the loss of hard dental tissue. Parafunctional habits have been mentioned as a self-destructive process caused by stress, which results in hyperactivity of masticatory muscles. Stress manifests itself through teeth grinding, leading to progressive teeth wear. | Int. J. Med. Sci. 2015 Vol. 12 264 IVYSPRING ĩvt ơ-rnrt irmrtí clrni t n lí ei-fCMo Tir lT Qriữvtrơc INTERNATIONAL PUBLISHER international journal Oj jVLeaicaiSciences 2015 12 3 264-269. doi Research Paper Industrial Noise and Tooth Wear - Experimental Study Maria Alzira Cavacas1 Vitor Tavares1 Gongalo Borrecho2 Maria João Oliveira3 Pedro Oliveira1 E José Brito4 Artur Águas3 José Martins dos Santos1 1. Anatomy Department Center for Interdisciplinary Research Egas Moniz Health Sciences Institute Monte de Caparica Portugal 2. Pathology Department Hospital Santa Maria Lisboa Portugal 3. Anatomy Department Abel Salazar Biomedical Health Institute Porto Portugal 4. Statistics Department Center for Interdisciplinary Research Egas Moniz Health Sciences Institute Monte de Caparica Portugal. El Corresponding author Pedro Oliveira Phone 00351 936983136 00351 212946800 Facsimile 00351 212946868 E-mail jsan-tos@ or pedromaoliveira@. 2015 Ivyspring International Publisher. Reproduction is permitted for personal noncommercial use provided that the article is in whole unmodified and properly cited. See http terms for terms and conditions. Received Accepted Published Abstract Tooth wear is a complex multifactorial process that involves the loss of hard dental tissue. Parafunctional habits have been mentioned as a self-destructive process caused by stress which results in hyperactivity of masticatory muscles. Stress manifests itself through teeth grinding leading to progressive teeth wear. The effects of continuous exposure to industrial noise a stressor agent cannot be ignored and its effects on the teeth must be evaluated. Aims The aim of this study was to ascertain the effects of industrial noise on dental wear over time by identifying and quantifying crown area loss. Material and Methods 39 Wistar rats were used. Thirty rats were divided in 3 experimental groups of 10 animals each. .