Experiences of Undergraduates Using the Ni-Ti Rotary Technique at the Beginning of the Endodontic Curriculum

Ming-Gene Tu ； Heng-Li Huang ； Jui-Ting Hsu ； San-Yue Chen ； Pau-Hsuan Lin ； Li-Jyh Fuh ； Chi-Cheng Tsai

《Journal of Dental Sciences》 3卷4期 (2008/12) Pp. 199-203

https://doi.org/10.30086/JDS.200812.0003

摘要

The purpose of this study was to describe the initial experiences teaching the HREO Shaper(superscript ®) NiTi rotary technique to undergraduates and to justify teaching NiTi rotary instrumentation at the beginning of the endodontic laboratory curriculum, Fifty-two fourth-and fifth-year dental students practiced the HREO Shaper technique in April 2005, Simulated curved canal resin blocks and 3 HERO Shaper(superscript ®) files up to size #30 (0.04 taper) were used by all of the students, The preparation time, amount of increased canal width, deviation, and centering ratio were calculated for the apical 4 mm of length and statistical analyses were performed. During the experiment, working time and performance in maintaining the original shape using the HERO Shaper(superscript ®) instrumentation for the 2 groups of dental students showed no statistical difference, By teaching the use of the HERO Shaper(superscript ®) files at the beginning of the endodontic curriculum, neophyte dental students were able to maintain the original shape in curved root canals within 4 minutes.

關鍵字

canal deviations ； endodontic curriculum ； NiTi rotary HERO Shaper(superscript ®) ； shaping performance ； simulated curved canals