Dental abrasion

Dental abrasion is the non-carious, mechanical wear of a tooth caused by contact with objects other than the opposing teeth. It most commonly affects the premolars and canines, usually along the margin at the gum line, and it is most often attributed to incorrect toothbrushing technique. The lesion typically appears V-shaped, with a shiny rather than decayed surface, and can be deep enough to expose the pulp chamber. It can cause tooth sensitivity to hot and cold, trap plaque and so lead to caries and periodontal disease. Treatment first stops the cause, then may add changes in oral hygiene, fluoride to reduce sensitivity, or a restoration.