Removable Prosthodontics Department, Faculty of Dentistry, Mansoura University, Mansoura, 35511, Egypt.
Restorative Dentistry and Prosthodontics, College of Dentistry, American University Iraq Baghdad (AUIB), Baghdad, Iraq.
BMC Oral Health. 2024 Jun 8;24(1):672. doi: 10.1186/s12903-024-04389-1.
This crossover clinical study aimed to evaluate and compare masticatory performance and patient satisfaction for patients rehabilitated with conventional heat-cured acrylic resin and 3D-printed mandibular implant overdentures retained with bar attachment.
Sixteen completely edentulous healthy participants received new conventional dentures. In the mandible, four interforaminal implants were inserted. Following the stage of osseointegration, the bar was constructed in a trapezoidal configuration. Each patient randomly received the following overdentures using a crossover design: (1) conventional heat-cured acrylic resin overdenture and (2) 3D-printed overdenture (developed by scanning of mandibular conventional overdenture). The masticatory performance was assessed by conducting a two-colour mixing ability test at 5, 10, 20, 30, and 50 masticatory cycles. Moreover, the McGill Denture Satisfaction Questionnaire (MDSQ) was employed to assess patient satisfaction. Evaluation was performed after 3 months of using each overdenture. Paired sample t tests were used to compare the masticatory performance and MDSQ scores of patients for both prostheses.
No significant difference in masticatory performance was reported between the two types of overdentures. Regarding patient satisfaction, only the esthetic aspect was significantly better for conventionally processed overdentures than for printed overdentures. Insignificant differences were observed regarding other MDSQ items between the two overdentures.
Within this clinical study, 3D-printed implant overdentures showed promising results in terms of chewing efficiency and patient satisfaction compared to conventionally fabricated implant overdentures.
Retrospectively registered at www.
gov : NCT06148727.(28/11/2023).
本交叉临床研究旨在评估和比较使用常规热固性丙烯酸树脂和通过杆附着保留的 3D 打印下颌种植覆盖义齿修复的患者的咀嚼性能和患者满意度。
16 名完全无牙的健康参与者接受了新的常规义齿。在下颌，插入了四个穿牙槽种植体。在骨整合阶段后，以梯形结构构建了杆。每个患者使用交叉设计随机接受以下覆盖义齿：（1）常规热固性丙烯酸树脂覆盖义齿和（2）3D 打印覆盖义齿（通过扫描下颌常规覆盖义齿开发）。通过双色混合能力测试在 5、10、20、30 和 50 咀嚼循环时评估咀嚼性能。此外，使用麦吉尔义齿满意度问卷（MDSQ）评估患者满意度。在使用每种覆盖义齿 3 个月后进行评估。使用配对样本 t 检验比较两种义齿的患者咀嚼性能和 MDSQ 评分。
两种覆盖义齿的咀嚼性能无显著差异。关于患者满意度，仅常规处理的覆盖义齿在美学方面明显优于 3D 打印的覆盖义齿。两种覆盖义齿之间在 MDSQ 的其他项目上观察到无显著差异。
在这项临床研究中，与常规制作的种植覆盖义齿相比，3D 打印种植覆盖义齿在咀嚼效率和患者满意度方面显示出有前景的结果。
在 www. 进行回顾性注册。
gov ：NCT06148727.（2023 年 11 月 28 日）。
