A Comparison of the Accuracy Between a Digital Fabrication Workflow and a Conventional Fabrication Workflow for Occlusal Appliances: A Pilot Study.

IF 2.1 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE International Journal of Prosthodontics Pub Date : 2023-09-12 DOI:10.11607/ijp.7947

Rui Lin, Yue-Qi Yan, Jian Sun, Chun-Hua Yu

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Abstract

Purpose: To compare the accuracy of occlusal stabilization appliances fabricated by digital workflows to those fabricated by conventional workflows.

Materials and methods: In total, 10 volunteers were recruited in this single-blinded crossover study. All volunteers received two types of occlusal stabilization appliances: a digital additively manufactured stabilization splint (DS) and a conventionally fabricated splint (CS). The accuracy was assessed using a 4-point rating scale addressing two aspects of the occlusal appliances: occlusal contact and basic performance. In addition, silicone impression materials were used to assess the gap between the appliance and the maxillary arch to ensure an accurate fit. Differences were quantitatively assessed with Mann-Whitney U test and independent-sample t test.

Results: The occlusal contact rating of DS (15.90 ± 1.73) was significantly higher than that of CS (14.10 ± 1.10, P < .05). The basic performance rating of DS (8.70 ± 0.48) was also significantly higher than that of CS (7.20 ± 0.92. P < .05). Quantitative evaluation of fit accuracy revealed a statistically significant difference (P < .05), with DS (636.29 ± 268.51 μm) being superior to CS (704.2 ± 306.05 μm).

Conclusion: The stabilization splints fabricated with a digital workflow showed better accuracy than the conventionally fabricated splints in terms of occlusal contact, basic performance, and fit accuracy. Because this is a pilot study, formal trials with a completely digital fabrication workflow will be conducted in the future.

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数字制作工作流程与传统制作工作流程对咬合器具准确性的比较:一项试点研究。

目的:比较数字工作流程制作的咬合稳定器与传统工作流程制作的咬合稳定器的精度。材料与方法:本次单盲交叉研究共招募10名志愿者。所有志愿者都接受了两种类型的咬合稳定器具:数字增材制造的稳定夹板(DS)和传统制造的夹板(CS)。使用4点评定量表对咬合器具的两个方面进行评估:咬合接触和基本性能。此外，硅胶印模材料用于评估矫治器与上颌弓之间的间隙，以确保准确配合。采用Mann-Whitney U检验和独立样本t检验定量评价差异。结果:DS组的咬合接触评分(15.90±1.73)明显高于CS组(14.10±1.10,P < 0.05)。DS组的基本性能评分(8.70±0.48)显著高于CS组(7.20±0.92)。P < 0.05)。定量评价拟合精度差异有统计学意义(P < 0.05)， DS(636.29±268.51 μm)优于CS(704.2±306.05 μm)。结论:数字化工作流程制作的稳定夹板在咬合接触、基本性能和贴合精度方面均优于传统制作的稳定夹板。由于这是一项试点研究，未来将进行完全数字化制造工作流程的正式试验。

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

International Journal of Prosthodontics 医学-牙科与口腔外科

CiteScore

3.20

自引率

4.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Official Journal of the European Association for Osseointegration (EAO), the International College of Prosthodontists (ICP), the German Society of Prosthodontics and Dental Materials Science (DGPro), and the Italian Academy of Prosthetic Dentistry (AIOP) Prosthodontics demands a clinical research emphasis on patient- and dentist-mediated concerns in the management of oral rehabilitation needs. It is about making and implementing the best clinical decisions to enhance patients'' quality of life via applied biologic architecture - a role that far exceeds that of traditional prosthetic dentistry, with its emphasis on materials and techniques. The International Journal of Prosthodontics is dedicated to exploring and developing this conceptual shift in the role of today''s prosthodontist, clinician, and educator alike. The editorial board is composed of a distinguished team of leading international scholars.