What term describes the loss of buccal enamel due to mechanical trauma from toothbrushing?

The term that describes the loss of buccal enamel due to mechanical trauma from tooth brushing is abrasion. This occurs when toothbrush bristles or other foreign objects wear away the enamel surface, often as a result of improper brushing techniques or using a toothbrush that is too hard. Over time, this mechanical wear can lead to sensitivity and discomfort, and may contribute to more significant dental issues if not addressed.

Abrasion specifically relates to external forces that act on the tooth structure, differentiating it from other terms associated with enamel loss. Abfraction refers to the loss of tooth structure caused primarily by flexural forces, typically seen at the cervical area of the tooth. Attrition describes the wear that occurs due to tooth-to-tooth contact, such as in cases of grinding or bruxism. Erosion is related to the chemical dissolution of enamel due to acidic substances, which is not mechanical in nature. Therefore, abrasion is the appropriate term for the loss of enamel due to the mechanical action of brushing.