Frank Ariadne Charis, Jennrich Linda, Kanzow Philipp, Wiegand Annette, Krantz-Schäfers Christiane
Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Göttingen, Germany.
JMIR Med Educ. 2023 Apr 28;9:e44989. doi: 10.2196/44989.
A successful periodontitis treatment demands good manual skills. A correlation between biological sex and dental students' manual dexterity is currently unknown.
This study examines performance differences between male and female students within subgingival debridement.
A total of 75 third-year dental students were divided by biological sex (male/female) and randomly assigned to one of two work methods (manual curettes n=38; power-driven instruments n=37). Students were trained on periodontitis models for 25 minutes daily over 10 days using the assigned manual or power-driven instrument. Practical training included subgingival debridement of all tooth types on phantom heads. Practical exams were performed after the training session (T1) and after 6 months (T2), and comprised subgingival debridement of four teeth within 20 minutes. The percentage of debrided root surface was assessed and statistically analyzed using a linear mixed-effects regression model (P<.05).
The analysis is based on 68 students (both groups n=34). The percentage of cleaned surfaces was not significantly different (P=.40) between male (mean 81.6%, SD 18.2%) and female (mean 76.3%, SD 21.1%) students, irrespective of the instrument used. The use of power-driven instruments (mean 81.3%, SD 20.5%) led to significantly better results than the use of manual curettes (mean 75.4%, SD 19.4%; P=.02), and the overall performance decreased over time (T1: mean 84.5%, SD 17.5%; T2: mean 72.3%, SD 20.8%; P<.001).
Female and male students performed equally well in subgingival debridement. Therefore, sex-differentiated teaching methods are not necessary.
成功的牙周炎治疗需要良好的手工操作技能。目前尚不清楚生物性别与牙科学生手部灵活性之间的相关性。
本研究考察男女学生在龈下刮治方面的表现差异。
总共75名三年级牙科学生按生物性别（男/女）分组，并随机分配到两种操作方法之一（手动刮治器n = 38；动力驱动器械n = 37）。学生们使用指定的手动或动力驱动器械，在牙周炎模型上每天训练25分钟，持续10天。实践培训包括在模型头上对所有牙型进行龈下刮治。在培训课程结束后（T1）和6个月后（T2）进行实践考试，考试内容为在20分钟内对四颗牙齿进行龈下刮治。评估刮治牙根表面的百分比，并使用线性混合效应回归模型进行统计分析（P <.05）。
分析基于68名学生（两组各n = 34）。无论使用何种器械，男性（平均81.6%，标准差18.2%）和女性（平均76.3%，标准差21.1%）学生的清洁表面百分比无显著差异（P =.40）。使用动力驱动器械（平均81.3%，标准差20.5%）的效果明显优于使用手动刮治器（平均75.4%，标准差19.4%；P =.02），且总体表现随时间下降（T1：平均84.5%，标准差17.5%；T2：平均72.3%，标准差20.8%；P <.001）。
男女学生在龈下刮治方面表现相当。因此，无需采用针对性别的教学方法。
