Manikin-Head-Based Demonstration Improves Suture Proficiency in Dental Residents

This study aimed to evaluate the effectiveness of manikin-head simulator-based demonstration training in improving intraoral suturing proficiency among dental residents, and to understand the perspectives of residents in China's Standardized Residency Training (SRT) program on preclinical training.

Eighteen postgraduate dental residents from the Hospital of Stomatology, Wuhan University, participated in the intraoral suturing training program. Theoretical instruction by a senior oral surgery instructor delivered lectures on four fundamental suturing techniques. Then, residents engaged in hands-on practice using a customized silicone model integrated into a manikin head simulator. Subsequently, optimal suturing techniques were demonstrated, after which residents replicated the suturing procedure. Completion time was recorded, and suture quality was assessed using a 32-point validated rubric evaluating seven domains. In addition, participants completed questionnaires to provide subjective feedback on the training. Paired t-tests compared pre- and post-demonstration completion times and scores.

Residents' operational time significantly decreased (from 23.99 ± 2.55 to 14.54 ± 1.99 min, p < 0.001) with improved quality scores (from 21.22 ± 5.12 to 29.67 ± 2.35, p < 0.001). Junior participants showed greater score improvements than seniors, who maintained higher baseline scores and efficiency. Participants reported enhanced suturing speed, which was consistent with objective time metrics. Participants also noted improved instrument proficiency and reported improved perceived confidence. All participants agreed that the training effectively addressed clinical skill gaps.

Manikin-head-based demonstration training effectively enhances simulated intraoral suturing performance and self-reported confidence among dental residents in a preclinical setting. This approach bridges critical gaps between undergraduate education and clinical demands in China's SRT program by providing scalable, cost-effective preclinical practice, which may ultimately contribute to improved patient safety and clinical outcomes.