基于CAD/ cam的减法与数字光处理制造的单块夹板用于TMD管理的准确性：一项体外研究。

IF 5.5 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of dentistry Pub Date : 2025-09-29 DOI:10.1016/j.jdent.2025.106136

Antong Wu , Ping Li , Astrid D. Bakker , Janak L. Pathak , Qingbin Zhang , Wei Cao , Richard T. Jaspers

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引用次数: 0

摘要

目的：一种新设计的单块（MB）夹板已经显示出治疗颞下颌疾病（TMD）的良好临床潜力。MB夹板制作的准确性对TMD治疗的有效性至关重要；然而，它仍然没有得到充分的定义。本研究旨在探讨减法制造（SM）和增材制造（AM）技术对MB夹板正确率和精度的影响。材料和方法：使用代表性的AM技术（数字光处理，DLP）和SM方法（铣削）制造夹板样品。制作完成后，使用3D检测软件对所有样品进行扫描和分析。测量均方根（RMS）值以评估真实度和精度，并生成彩色图以检测偏差。统计分析采用Mann-Whitney U检验和非配对t检验。结果：SM夹板在上颌、下颌边缘区和下颌凹面的正确率明显高于AM夹板（p < 0.0001）。上颌凹面差异无统计学意义（p = 0.143）。在精度方面，SM夹板在下颌边缘区域的精度更高（p < 0.0001），而AM夹板在上颌边缘区域的精度更高（p = 0.004）。上颌凹印面（p = 0.876）和下颌骨凹印面（p = 0.311）的精度差异无统计学意义。结论：制作方法明显影响MB夹板的精度。SM夹板表现出优异的准确性，而两种制造方法都表现出相当的精度。与其他区域相比，下颌切面和凹痕面准确性更高。临床意义：采用SM或AM制造方法生产的夹板均符合临床要求。然而，就准确性而言，SM夹板似乎是首选。

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Accuracy of CAD/CAM-based subtractive versus digital light processing fabricated mono-block splints for TMD management: An in vitro study

Objectives

A newly designed Mono-Block (MB) splint has demonstrated promising clinical potential for treating temporomandibular disorders (TMD). The accuracy of MB splint fabrication is critical to the effectiveness of TMD treatment; however, it remains insufficiently defined. This study aimed to investigate the impact of subtractive manufacturing (SM) and additive manufacturing (AM) technologies on the trueness and precision of MB splints.

Methods

Splint samples were fabricated using a representative AM technique (digital light processing, DLP) and an SM method (milling). Following fabrication, all samples were scanned and analyzed using 3D inspection software. Root mean square (RMS) values were measured to assess trueness and precision, and color maps were generated to detect deviations. Statistical analyses were conducted using Mann-Whitney U tests and unpaired t-tests.

Results

SM splints exhibited significantly higher trueness than AM splints in the maxillary and mandibular marginal areas and the mandibular intaglio surface (p < 0.0001). No significant difference was observed in the maxillary intaglio surface (p = 0.143). Regarding precision, SM splints demonstrated greater precision in the mandibular marginal area (p < 0.0001), while AM splints exhibited higher precision in the maxillary marginal area (p = 0.004). No significant differences in precision were found for the maxillary (p = 0.876) and mandibular (p = 0.311) intaglio surfaces.

Conclusion

The manufacturing method significantly influenced MB splint accuracy. SM splints exhibited superior trueness, while both fabrication methods demonstrated comparable precision. Accuracy was greater in the mandibular section and the intaglio surface compared to other areas.

Clinical significance

All splints produced by SM or AM manufacturing methods meet the clinical requirements. However, regarding accuracy, SM splints appear to be the preferred choice.

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来源期刊

Journal of dentistry 医学-牙科与口腔外科

CiteScore

7.30

自引率

11.40%

发文量

349

审稿时长

35 days

期刊介绍： The Journal of Dentistry has an open access mirror journal The Journal of Dentistry: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The Journal of Dentistry is the leading international dental journal within the field of Restorative Dentistry. Placing an emphasis on publishing novel and high-quality research papers, the Journal aims to influence the practice of dentistry at clinician, research, industry and policy-maker level on an international basis. Topics covered include the management of dental disease, periodontology, endodontology, operative dentistry, fixed and removable prosthodontics, dental biomaterials science, long-term clinical trials including epidemiology and oral health, technology transfer of new scientific instrumentation or procedures, as well as clinically relevant oral biology and translational research. The Journal of Dentistry will publish original scientific research papers including short communications. It is also interested in publishing review articles and leaders in themed areas which will be linked to new scientific research. Conference proceedings are also welcome and expressions of interest should be communicated to the Editor.