Effect on undergraduate student self-confidence in using 3D printed primary molars for root canal treatment simulation training

Abstract

Purpose: The main purpose of this study was to assess the effect of a root canal treatment (RCT) practical simulation-based session using 3D printed primary molars on the self-confidence of fourth-year undergraduate dental students. Our study was also designed to explore student experiences with both manual and rotary RCT procedures and to investigate the association between the self-confidence in undertaking an RCT and the quality of the RCT.

Methods: Student global self-confidence in undertaking an RCT on a healthy, cooperative child aged 4-5 years was evaluated 2 h before, 1 month after, and 11 months after the simulation training session. Once each instrumental procedure had been completed, the students were also asked to score the level of confidence (specific self-confidence) they felt regarding the use of RP and MP. After each training session, the quality of the RCT was radiographically evaluated by two trained, independent investigators.

Results: Overall, student global self-confidence in undertaking an RCT increased significantly immediately after the practical session and remained stable for the ensuing eleven months. The students declared a clear preference for RP and were more self-confident in undertaking an RCT after RP than after MP. The proportion of RCTs considered of good quality was the same for the manual (31.5%) and rotary (30.3%) procedures.

Conclusions: Simulation training is a good way to train dental students who are confident in undertaking RCTs. However, confidence is not directly related to competence. Teachers should be encouraged to develop a comprehensive simulation training program, including feedback, debriefing, and repetitions.

Keywords: Dental students; Primary teeth; Root canal therapy; Self-confidence; Simulation training.