Quantitative Clinical Evaluation of the Occlusal Contact Trueness Affected by Six Chairside CAD/CAM Ceramic Materials：a Self-control Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 10
- 试验地点
- 1
- 主要终点
- milling trueness(μm)
研究概览
简要总结
The aim of this clinic self-control study was to evaluate the trueness of occlusal contact affected by six ceramic materials during chairside fabricating process and offer recommendations for occlusal offset according to different ceramic materials in CEREC CAD/CAM design process.
详细描述
Ten participants were selected for this study. InCoris TZl(ZIR), Celtra Duo(CD), IPS e.max(EMA), UPCERA LICI (LC), Vita enamic(ENA), UPCERA RUNCI (RC) were used to produce crowns for everyone by CEREC chairside CAD/CAM system. The milling trueness, postprocessing trueness and clinical adjustment of occlusal contact were quantitatively analyzed by the ATOS high-precision scanner and Geomagic reverse engineering software.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Double (Care Provider, Outcomes Assessor)
盲法说明
Care providers and outcomes assessors wouldn't know the materials of the specimen.
入排标准
- 年龄范围
- 20 Years 至 30 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •with one mandibular first molar requiring crown restoration that have undergone root canal treatment;
- •with complete permanent dentition;
排除标准
- •with carious lesions, abrasions, attrition, erosions or any kind of tooth defects;
- •with any kind of restorations in occlusal surfaces;
- •with any sign of temporomandibular dysfunction.
结局指标
主要结局
milling trueness(μm)
时间窗: 1 week
the absolute 3D deviation of occlusal contact points before and after milling
postprocessing trueness(μm)
时间窗: 1 week
the absolute 3D deviation of occlusal contact points before and after postprocessing
clinical trueness(μm)
时间窗: 1 week
the absolute 3D deviation of occlusal contact points before and after occlusal adjustment
次要结局
未报告次要终点
研究者
Hao Yu
vice dean of school and hospital of stomatology
Fujian Medical University