This study presents the progress of tooth wear and the change in structural morphology on individual teeth of bruxist subjects, compared with non-bruxers. From the results of this investigation it can be concluded that the tooth wear progressed faster in bruxers than in non-bruxers. Scanning electron microscope investigations revealed in 10 teeth the same pattern of deep grooves and striations on the wear-facets of active bruxers.
This study revealed that the premolars in both arches are most commonly afflicted with erosion. The same results were obtained in an earlier study conducted by Sognnaes, Wolcott & Xhonga (1972) and Xhonga, Wolcott & Sognnaes (1972) evaluating the erosion pattern on extracted teeth. These findings should be helpful in further investigation into the aetiology and treatment. Educational, epidemiological and preventive concerns derive from a study establishing the dental erosion frequency on a large population sample (approximately 600 individuals and 1500 teeth). The comparative results for both locations used will provide a more significant basis for future studies of a similar nature.
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