Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian-Albrechts-University of Kiel, Arnold-Heller-Str. 3, Haus B, 24105, Kiel, Germany.
Clin Oral Investig. 2021 Jan;25(1):219-230. doi: 10.1007/s00784-020-03356-8. Epub 2020 May 30.
Whereas the key role of subgingival instrumentation in periodontal therapy is well known, the influence of operators' experience/training with different devices on treatment results is yet uncertain. Therefore, we assessed untrained undergraduate students, working on manikins, as to how effectively they learn to use curettes (GRA) and sonic scalers (AIR); hypothesizing that AIR will result in higher relative cleaning efficacy (RCE) than GRA.
Before baseline evaluation (T0), 30 operators (9 males, 21 females) received a 2-h theoretical lesson for both instruments, followed by a 12-week period with a weekly digitized training program for 45 min. During three sessions (T1-T3), the operators had to instrument six equivalent test teeth with GRA and AIR. At T0-T3, treatment time, proportion of removed simulated biofilm (RCE-b), and hard deposits (RCE-d) were measured.
At T0, RCE-b was in mean(SD) 64.18(25.74) % for GRA, 62.25(26.69) % for AIR; (p = 0.172) and RCE-d 85.48(12.32) %/ 65.71(15.27) % (p < 0.001). At T3, operators reached highest RCE-b in both groups (GRA/AIR 71.54(23.90) %/71.75(23.05)%; p = 0.864); RCE-d GRA/AIR: 84.68(16.84) %/77.85(13.98) %; p < 0.001). Both groups achieved shorter treatment times after training. At T3, using curettes was faster (GRA/AIR 16.67(3.31) min/19.80(4.52) min; p < 0.001).
After systematic digitized training, untrained operators were able to clean 70% of the root surfaces with curettes and sonic scalers.
It can be concluded that a systematic digitized and interactive training program in manikin heads is helpful in the training of root surface debridement.
虽然龈下器械在牙周治疗中的关键作用已广为人知，但操作人员使用不同器械的经验/培训对治疗结果的影响尚不确定。因此，我们评估了未经培训的本科生在模型上的操作能力，以了解他们使用龈下刮治器（GRA）和超声洁牙机（AIR）的学习效果；并假设 AIR 会产生比 GRA 更高的相对清洁效果（RCE）。
在基线评估（T0）之前，30 名操作人员（9 名男性，21 名女性）接受了 2 小时的两种仪器理论课程，随后进行了为期 12 周的每周 45 分钟数字化培训计划。在三个阶段（T1-T3）中，操作人员必须用 GRA 和 AIR 器械处理六颗相同的测试牙。在 T0-T3 时，测量治疗时间、去除模拟生物膜的比例（RCE-b）和硬沉积物（RCE-d）。
在 T0 时，GRA 的 RCE-b 为 64.18（25.74）%，AIR 的 RCE-b 为 62.25（26.69）%（p=0.172），RCE-d 为 85.48（12.32）%/65.71（15.27）%（p<0.001）。在 T3 时，两组操作人员的 RCE-b 均达到最高水平（GRA/AIR 71.54（23.90）%/71.75（23.05）%；p=0.864），RCE-d 为 GRA/AIR 84.68（16.84）%/77.85（13.98）%；p<0.001）。两组在培训后治疗时间均缩短。在 T3 时，使用龈下刮治器的速度更快（GRA/AIR 16.67（3.31）min/19.80（4.52）min；p<0.001）。
经过系统的数字化培训，未经培训的操作人员能够用龈下刮治器和超声洁牙机清洁 70%的根面。
可以得出结论，系统的数字化和互动培训计划对模型头部的根面清创是有帮助的。
