Two-year clinical outcomes of three-dimensional printed complete dentures: A prospective multicenter study of survival and patient-reported outcomes.

IF 5.8 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of dentistry Pub Date : 2026-10-13 DOI:10.1016/j.jdent.2026.107110

Maiko Iwaki, Yo Akiyama, Mariko Mukai, Bohan Tang, Keisuke Kohri, Mitsuki Masumoto, Shogo Shibata, Mai Shirai, Hidemasa Shimpo, Chikahiro Ohkubo, Atsushi Takaichi, Shin-Ichi Usugi, Manabu Kanazawa

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引用次数: 0

Abstract

Objectives: To evaluate 2-year cumulative success and survival rates, changes in oral health-related quality of life (OHRQoL), and patient satisfaction among edentulous patients who continued to wear complete dentures fabricated by three-dimensional (3D) printing (CAD-3DPs) after a crossover randomized controlled trial (RCT).

Methods: Eighteen edentulous patients (36 dentures) wearing maxillary and mandibular CAD-3DPs after the RCT were prospectively followed. Events were denture fracture, repair, relining, or occlusal reconstruction (success rate) and discontinuation of use (survival rate). OHRQoL (total and seven subdomain scores) and patient satisfaction (visual analogue scale) were assessed at RCT conclusion (T0) and every 6 months up to 24 months (T4), and compared with T0.

Results: Twenty-four dentures (12 patients) completed 2-year observation. In the success analysis, the only events were fractures of four maxillary dentures, all occurring within the first year; in the survival analysis, four dentures (two patients) were discontinued after maxillary fracture. Two-year cumulative success and survival rates were 88% and 87%, respectively. Palatal thickness of fractured dentures had been set at 2.0-2.1 mm, at the lower end of the design range (2.0-2.5 mm). No significant changes from T0 were detected in the OHRQoL total score, any of its seven subdomains, or patient satisfaction during follow-up.

Conclusions: CAD-3DPs showed high 2-year success and survival rates, with maintained OHRQoL and patient satisfaction, and can be an effective prosthetic treatment option for edentulous patients.

Clinical significance: Two-year prospective data support the clinical applicability of 3D-printed complete dentures. All fractures occurred in maxillary dentures with a thin palatal thickness setting, suggesting that attention to the denture design may help prevent fracture.

Trial registration: UMIN000037947.

查看原文本刊更多论文

三维打印全口义齿的两年临床结果：一项生存率和患者报告结果的前瞻性多中心研究。

目的：通过交叉随机对照试验（RCT）评估无牙患者继续佩戴三维（3D）打印（CAD-3DPs）全口义齿的2年累积成功率和生存率、口腔健康相关生活质量（OHRQoL）的变化以及患者满意度。方法：对18例无牙患者（36个义齿）在随机对照试验后佩戴上颌和下颌CAD-3DPs进行前瞻性随访。事件包括义齿骨折、修复、复衬或咬合重建（成功率）和停止使用（存活率）。在RCT结束时（T0）和每6个月至24个月（T4）评估OHRQoL（总分和7个子域评分）和患者满意度（视觉模拟量表），并与T0进行比较。结果：24个义齿（12例）完成2年观察。在成功病例分析中，仅有4例上颌义齿骨折，均发生在第一年内；在生存分析中，4例患者（2例）在上颌骨折后停用假牙。2年累计成功率88%，生存率87%。腭裂义齿的腭厚设定在2.0 ~ 2.1 mm，为设计范围（2.0 ~ 2.5 mm）的下端。从T0开始，在OHRQoL总分、其七个子域中的任何一个或随访期间的患者满意度中未发现显著变化。结论：CAD-3DPs具有较高的2年成功率和生存率，维持了OHRQoL和患者满意度，是无牙患者修复治疗的有效选择。临床意义：两年的前瞻性数据支持3d打印全口义齿的临床适用性。所有骨折均发生在腭厚较薄的上颌义齿，提示注意义齿的设计可能有助于预防骨折。试验注册号：UMIN000037947。

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

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.