Comparison of digital scanning and polyvinyl siloxane impression techniques by DMD students : instructional efficiency and attitudes toward technology.

Lava C.O.S.;digital impression;dental education;PVS;Learning curve

Alexander M Marti

University:University of Louisville

Department:Oral Biology

关键词: Lava C.O.S.;    digital impression;    dental education;    PVS;    Learning curve;   

Others  :  https://ir.library.louisville.edu/cgi/viewcontent.cgi?article=3274&context=etd

美国|英语

来源: The Universite of Louisville's Institutional Repository

【 摘 要 】

The aim of this research was compare the ability of dental students to learn an digital scanner (3M LAVA) and material-based (PVS) impression techniques and to determine attitudes and preferences towards each. D2 dental students (n=25) were recruited and instructed on the use of 3M LAVA and PVS techniques using three pedagogic methods: 1) video lecture (P1), 2) investigator-led demonstration (P2), and 3) independent clinical exercise (P3). The amount of time for each pedagogic method was measured, averaged (± s.d.) and compared using Wilcoxon Signed-Ranks tests. A pre- and post-test was administered assessing their attitudes towards both techniques using a Likert scale and compared using dependent t-tests. Instructional time for 3M LAVA was higher for each pedagogic method (P1; 15.95 vs.10.07 min, p=0.0000: P2; 8.68 vs. 4.51 min, p=0.000: P3; 20.37 vs.14.17, p=0.000). Prior to instruction, students were more familiar with the PVS techniques (3.96 vs. 1.95, p=.0000) and expected both to be similar in difficulty (3.52 and 3.84, p=.106). After instruction, PVS techniques were considered easier to perform than expected (4.08, p=.002) with no change in perceived difficulty for 3M LAVA (3.56, p=.106). 96% of participants expected 3M LAVA to become their primary impression technique in their career.