关键词: 牙齿, 牙位记录法, 上标, 下标, tooth, tooth notation system, superscript, subscript

Abstract: Objective To compare the effects of recording teeth by two superscriptsubscript tooth notation systems. Methods The first superscriptsubscript tooth notation system uses T and t as identification characters of teeth to be recorded.T represents the permanent teeth and t represents the deciduous teeth.From the midline posteriorly digits 1-8 and digits 1-5 represent the names of permanent teeth and deciduous teeth respectively.The second superscriptsubscript tooth notation system only uses T as identification character of teeth to be recorded.From the midline posteriorly digits 1-8 and English letters A-E represent names of permanent teeth and deciduous teeth respectively.The teeth were recorded as superscript and subscript on the right or left sides of identification characters by two superscriptsubscript tooth notation systems respectively. Results The teeth in the dentitions can be recorded accurately by writing the assigned digits or English letters as superscript or subscript on right or left sides of identification characters by two superscriptsubscript tooth notation systems,but the effect of the first superscriptsubscript tooth notation system is better in inputting，printing and habits of identification. Conclusions The first superscriptsubscript tooth notation system is a better method for recording teeth.