Comparison of Retention Between Different Duplication Techniques of Complete Dentures: Conventional Versus CAD/CAM: A Within Subject Controlled Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Assessment of Retention of maxillary complete denture
研究概览
简要总结
Twenty completely edentulous patients with old, removable dentures with ill-fitting maxillary dentures, proper vertical dimension, and proper occlusion will be recruited for this trial. They will be rehabilitated with duplicated complete dentures manufactured by conventional and two different 3D-printed CAD-CAM Complete Removable Dentures techniques.
Outcomes will be evaluated, including denture retention, which will be evaluated using a digital force gauge, and occlusal force distribution by using a t-scan.
详细描述
The study will be conducted at the outpatient clinic of the Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry, Ain Shams University. This within-subject controlled clinical trial will involve twenty completely edentulous patients with old, ill-fitting maxillary complete dentures, who will be selected and recruited following approval by the Research Ethics Committee of the Faculty of Dentistry, Ain Shams University (FDASU-REC). These patients will be rehabilitated with duplicated complete dentures produced through conventional methods and two distinct 3D-printed CAD/CAM techniques.
Group I: The duplication of a refitted complete removable denture will be performed using the conventional heat-cured technique.
Group II: The refitted complete denture will be duplicated using a 3D-printed CAD/CAM technique, where the denture base will be printed separately with pink resin, and the teeth will be printed as a single unit in tooth-colored resin, followed by assembly of the two components.
Group III: The refitted complete denture will be duplicated using a 3D-printed CAD/CAM technique, with the entire denture printed as a single unit in tooth-colored resin, and the denture flange veneered with pink resin.
Outcomes will be evaluated by measuring denture retention with a digital force gauge and occlusal force distribution using the T-Scan system. The collected data will be recorded, tabulated, and subjected to statistical analysis using appropriate tests for group comparisons.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 50 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients with old complete dentures without lost vertical dimension.
- •Patients with correct centric occluding relation.
- •The dentures should be esthetically and functionally satisfactory and exhibit reasonable retention and stability
排除标准
- •The presence of ridge or soft tissue pathology.
- •Diminished saliva production.
- •A history of medications affecting saliva quantity or quality.
- •Patients with temporomandibular joint problems.
- •The presence of sever ridge undercut.
- •Debilitated patients
研究组 & 干预措施
conventional heat-cured duplication technique.
Duplication of refitted complete removable dentures by conventional heat-cured technique from heat-cured polymethyl methacrylate resin.
干预措施: Duplicated refitted complete denture made from conventionally heat-cured polymethyl methacrylate. (Device)
3d Printed CAD/CAM duplication technique from Pink polymethyl methacrylate base resin
Duplication of a refitted complete removable denture will be produced using a 3D-printed CAD/CAM technique where the denture base will be printed separately using pink base polymethyl methacrylate resin, and the teeth will be printed as one unit using tooth-colored resin, followed by assembling the two components.
干预措施: Duplicated refitted complete denture made from 3D-printed CAD/CAM pink polymethylmethacrylate acrylic resin. (Device)
3d Printed CAD/CAM duplication technique from white polymethyl methacrylate base resin
Duplication of a refitted complete removable denture will be produced using a 3D-printed CAD/CAM technique where the denture will be printed as a single unit using tooth-colored resin, and the denture flange will be veneered with pink resin.
干预措施: Duplicated refitted complete denture made from 3D-printed CAD/CAM white polymethylmethacrylate acrylic resin. (Device)
结局指标
主要结局
Assessment of Retention of maxillary complete denture
时间窗: at the time of denture insertion
The retention of a maxillary complete denture will be assessed using a digital force gauge meter, with retention measurements recorded in Newtons.
次要结局
- Evaluation of occlusal force distribution between right and left side(at the time of denture insertion)
研究者
Omnia M. Refai
Lecturer of Oral and Maxillofacial Prosthodontics
Ain Shams University