Abstract: In this study，we introduced the specific application of online teaching of the course of "Standardized Operation in Dental Clinic" before the students came back to the school under the outbreak of coronavirus disease 2019（COVID-19）caused by severe acute respiratory syndrome coronavirus 2（SARS-CoV-2）. The main content includes the teaching preparation，implementation，and evaluation，with an aim to provide a reference for the teaching of similar dental courses under the outbreak of COVID-19 and after the students return to the school.

Key words: severe acute respiratory syndrome coronavirus 2, SARS-CoV-2, online teaching, standardized operation in dental clinic, dental teaching

摘要： 文章以“牙科临床规范化操作”课程为例，详细讲述了由严重急性呼吸系统综合征冠状病毒2（severe acute respiratory syndrome coronavirus 2，SARS-CoV-2）引起的2019冠状病毒病（coronavirus disease 2019，COVID-19）疫情期间线上教学在学员返校前教学中的具体应用，主要内容包括教学准备、教学实施和教学评价，以期为疫情期间同类口腔医学教学和学员返校后教学提供参考。

关键词: 严重急性呼吸系统综合征冠状病毒2, 线上教学, 牙科临床规范化操作, 口腔医学教学