Nordbø H, Skogedal O
Acta Odontol Scand. 1982;40(1):45-7. doi: 10.3109/00016358209019808.
Abrasion of the cervical region of teeth has been attributed to mechanical cleaning procedures using dentisfrices containing abrasives of various kinds. In the present study the loss of substance during a 26 month period in the cervical region of the upper left premolars of dental students was measured directly by means of a micrometer. The average rate of abrasion was found to be 0.2 micro per day. No difference was observed between the group using a "non-abrasive" dentifrice and that employing a conventional paste. The risk associated with pulp exposure under the conditions observed is briefly discussed.
牙齿颈部磨损被认为是使用含有各种研磨剂的牙膏进行机械清洁程序所致。在本研究中，通过千分尺直接测量了牙科学生左上前磨牙颈部在26个月期间的物质损失。发现平均磨损率为每天0.2微米。使用“无研磨剂”牙膏的组与使用传统牙膏的组之间未观察到差异。简要讨论了在所观察条件下与牙髓暴露相关的风险。
