表 3. Top 5 co-citation literatures concerning preclinical education in dentistry from 1991 to 2021.

1991–2021年口腔医学临床前教育相关研究论文共被引论文信息（前5位）

First author	Year of publication	Title	Total citation frequency
GRATTON D G	2016	Impact of digital tooth preparation evaluation technology on preclinical dental students’ technical and self-evaluation skills	14
RENNE W G	2013	E4D compare software: An alternative to faculty grading in dental education	11
ROY E	2017	The need for virtual reality simulators in dental education: A review	10
MURBAY S	2020	'Evaluation of the introduction of a dental virtual simulator on the performance of undergraduate dental students in the pre-clinical operative dentistry course'	8
HAMIL L M	2014	Dental students' opinions of preparation assessment with E4D compare software versus traditional methods	7