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Dental Attrition - Definition



Definition


Attrition is defined as a loss of substance caused by a mechanism of friction, such as grinding. Dental attrition is thus a type of dental erosion. Due to forces which arise from opposing teeth, the structure at the edge of the teeth is modified. The first structure affected by attrition is the enamel, followed by the dentin, which may wear away if the condition is particularly persistent and aggressive. The principal cause of dental attrition is bruxism, which is the habit, voluntary or involuntary, of grinding one's teeth. Chewing tobacco and several abrasive substances present in certain environments, if inhaled or swallowed, can also provoke dental attrition, as well as frequent nail-biting.
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