Effectiveness of a 3D Printed Training Kit for the Preparation of Access Cavities in Calcified Teeth: A Pilot Study.

IF 1.6 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Vranine Kadrija, Hauke Hildebrand, Wadim Leontiev, Eva Magni, Florian Markus Thieringer, Roland Weiger, Thomas Connert
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引用次数: 0

Abstract

Objective: This study aimed to evaluate the effectiveness of a 3D printed training kit for the preparation of endodontic access cavities in calcified teeth.

Methods: The root canal system of a micro-CT scanned premolar was digitally processed to create an endodontic training kit containing 10 teeth with ten different progressive degrees of pulp canal calcification. A tooth variant with a medium calcification degree (5/10) was printed in three copies using opaque resin. Additionally, a set of 10 transparent training teeth with red-colored pulp was produced using PolyJet 3D printing technology, which was used to train the access cavity preparation in a controlled manner due to the transparency of the teeth. Undergraduate students (n=27) and dentists (n=10) each prepared a total of 13 (one pre-training, two post-training) access cavities. Substance loss was quantified by CBCT, and user satisfaction was evaluated by questionnaire. Paired t-tests were used to compare the means for substance loss and procedure time for pre- and post-training conditions. Unpaired t-tests were used to compare differences between students and dentists. The level of significance was set at α=0.05.

Results: Mean substance loss before and after training decreased for both students (71.4 versus 54.68 mm3; p=0.069) and dentists (67.3 versus 51.1 mm3; p=0.633), but the difference was not statistically significant. The average preparation time decreased with training for students (420 versus 275 seconds; p=0.100) and dentists (336 versus 158 seconds; p=0.054), but not significantly. Root perforation rates also decreased (students: 6/27 versus 4/27; dentists: 1/10 versus 0/10). Participants rated the training model as very realistic and useful, despite the difference in material texture.

Conclusion: The proposed 3D printed training kit appears to be a suitable tool for undergraduate dental students, which could expand their opportunities to practice the preparation of endodontic access cavities in calcified teeth. (EEJ-2024-06-091).

在钙化牙齿中准备通道腔的3D打印训练包的有效性:一项试点研究。
目的:本研究旨在评估3D打印训练包在钙化牙根管通道预备中的有效性。方法:对微ct扫描的前磨牙根管系统进行数字化处理,制作含10颗不同程度牙髓管钙化的根管训练包。使用不透明树脂打印具有中等钙化程度(5/10)的牙齿变体三份。此外,利用PolyJet 3D打印技术制作了一套10颗红色牙髓的透明训练牙,由于牙齿的透明度,可以控制训练通道腔的准备。本科生(27名)和牙医(10名)各准备了13个(1个训练前,2个训练后)通道蛀牙。采用CBCT对物质损失进行量化,采用问卷调查对用户满意度进行评价。配对t检验用于比较训练前和训练后条件下物质损失和手术时间的平均值。非配对t检验用于比较学生和牙医之间的差异。显著性水平设为α=0.05。结果:两名学生在训练前后的平均物质损失均有所下降(71.4 mm3 vs 54.68 mm3;P =0.069)和牙医(67.3对51.1 mm3;P =0.633),但差异无统计学意义。学生的平均准备时间随着训练而减少(420秒比275秒;P =0.100)和牙医(336比158秒;P =0.054),但差异不显著。牙根穿孔率也有所下降(学生:6/27 vs 4/27;牙医:1/10 vs 0/10)。参与者评价训练模型非常真实和有用,尽管材料纹理不同。结论:3D打印训练包是一种适合牙科本科学生的工具,可以扩大他们在钙化牙根管通道预备方面的练习机会。(eej - 2024 - 06 - 091)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
European Endodontic Journal
European Endodontic Journal DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
3.40
自引率
5.60%
发文量
25
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