A Randomized Clinical Trial of 3-unit Posterior Zirconia-ceramic Fixed Dental Prosthesis (FDPs) Veneered With Layered and Milled (CAD-on) Veneering Ceramics
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 60
- 试验地点
- 2
- 主要终点
- Number of participants with clinical success
研究概览
简要总结
60 bridge frameworks are CAD/CAM manufactured from zirconia-ceramic; 30 bridges are veneered with CAD/CAM fabricated lithium disilicate ceramic, 30 bridges are manually layered. The goal is to compare clinical survival , biological or technical behaviour of the restorations.
详细描述
Randomized prospective controlled clinical study with three-unit posterior bridges made of zirconia-ceramic to compare veneering with manually layering or CAD/CAM fabricated lithium disilicate ceramic veneers. The hypothesis is that there is no difference in clinical survival of the restorations and no difference in biological or technical behaviour.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •single missing posterior tooth with two adjacent posterior teeth
- •no acute conservative or paradontal treatment need except for the teeth to be treated in the study
- •sufficient oral hygiene
排除标准
- •known allergies to components
- •missing antagonist tooth
- •pregnancy or lactation
- •missing written consent
- •patients which are not expected to be compliant
- •severe systemic diseases
- •untreated carious lesions
- •untreated parodontitis
结局指标
主要结局
Number of participants with clinical success
时间窗: 2 years
Clinical success is defined as more than 95% survival of the restoration after 2 years.
次要结局
- Restoration quality(1 week, 1 year, 2 years, 3 years, 4 years, 5 years)