训练对全口扫描执行情况的影响。第1部分：扫描时间。

Effects of Training on the Execution of Complete-Arch Scans. Part 1: Scanning Time.

作者信息

Waldecker Moritz, Trebing Charlotte, Rues Stefan, Behnisch Rouven, Rammelsberg Peter, Bömicke Wolfgang

出版信息

Int J Prosthodont. 2021 Jan-Feb;34(1):21-26. doi: 10.11607/ijp.6903.

DOI:10.11607/ijp.6903

PMID:33570516

Abstract

PURPOSE

To investigate the effect of training on scanning times of complete-arch scans (CAS) performed by first-time users, with a distinction made between specific training (repeated practice of CAS) and nonspecific training (simple use of an intraoral scanner for a sextant scan in the context of a student CAD/CAM course).

METHODS

Thirty-six students with no experience in intraoral scanning were randomized into three groups (n = 12 per group) according to the number of specific CAS training sessions: three sessions (3S), two sessions (2S), and one session (1S). Each student performed 10 CAS per scanning session. These sessions were scheduled at baseline (T), T (2 weeks after T), and T (4 weeks after T) for group 3S; at T and T for group 2S; and at T for group 1S. Before the final scanning session in each group (ie, the first scanning session in group 1S), the students participated in a CAD/CAM course (3 weeks after T0) in which a monolithic crown was fabricated in a fully digital chairside workflow. The scanning time was measured as the time between the activation and termination of the scanning mode of the intraoral device. Data were analyzed using SPSS Statistics 25 (IBM). The level of significance was set to α = .05.

RESULTS

A continual decrease in scanning time was observed for all groups as experience in intraoral scanning increased. The mean scanning times were as follows: for group 3S, 305 seconds at T, 246 seconds at T, and 233 seconds at T; for group 2S, 380 seconds at T and 303 seconds at T; and for group 1S, 355 seconds at T. When compared to group 1S after it had received nonspecific training only, the effect of a single specific training session in groups 3S and 2S was not significant (P = .4428). However, two specific training sessions had a significant effect on scanning time compared to nonspecific training only (P = .0005).

CONCLUSION

Training does affect the scanning time required for CAS. To perform such scans in a time-efficient manner, dental practitioners should undertake training that comprises at least 12 CAS.

摘要

目的

探讨培训对首次使用者进行全牙弓扫描（CAS）的扫描时间的影响，区分特定培训（重复进行CAS练习）和非特定培训（在学生CAD/CAM课程背景下简单使用口内扫描仪进行一个牙象限扫描）。

方法

36名无口内扫描经验的学生根据特定CAS培训课程的次数随机分为三组（每组n = 12）：三组培训课程（3S组）、两组培训课程（2S组）和一组培训课程（1S组）。每名学生每次扫描 session 进行10次CAS扫描。对于3S组，这些session安排在基线期（T0）、T1（T0后2周）和T2（T0后4周）；对于2S组，安排在T0和T1；对于1S组，仅在T0进行。在每组的最后一次扫描session之前（即1S组的第一次扫描session），学生们参加了一个CAD/CAM课程（T0后3周），课程中采用全数字化椅旁工作流程制作了一个整体式冠。扫描时间测量为口内设备扫描模式激活与终止之间的时间。使用SPSS Statistics 25（IBM）对数据进行分析。显著性水平设定为α = .05。

结果

随着口内扫描经验的增加，所有组的扫描时间均持续下降。平均扫描时间如下：3S组在T0时为305秒，T1时为246秒，T2时为233秒；2S组在T0时为380秒，T1时为303秒；1S组在T0时为355秒。与仅接受非特定培训后的1S组相比，3S组和2S组单次特定培训课程的效果不显著（P = .4428）。然而，与仅进行非特定培训相比，两次特定培训课程对扫描时间有显著影响（P = .0005）。