Clinical Performance and Wear Mechanism of Hot-Pressed Ceramic Crowns
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 试验地点
- 2
- 主要终点
- Clinical performance
研究概览
简要总结
The objectives of this study are to characterize the clinical performance and wear mechanisms of all-ceramic posterior crowns. The wear rate of all-ceramic crowns and opposing enamel in selected patients will be quantified. The relationship of each subject's maximum clenching force and wear rate will also be analyzed.
详细描述
High strength ceramics have been used in dentistry for constructing fixed partial denture. Their advantages are their acceptable fracture resistance, excellent biocompatibility, moderate opacity, etc. Because the increase in demand for more esthetic restoration, various ceramic materials have been used as a core material for several all-ceramic systems. Their properties have been investigated extensively in many in vitro studies. Currently, there are not much results regarding clinical performance and wear mechanism of ceramic-based prosthesis and more information are required for future research.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Occlusion: At least 20 remaining teeth for each patient, and at least one posterior endodontically treated tooth with natural opposing teeth
- •Bruxism: No evidence based on an intraoral examination
- •Dental history: No evidence of either moderate or severe periodontal disease
- •Medical history: Good to excellent general health
排除标准
- •Periodontal status: Pocket depth greater than 4 mm
- •Occlusion:
- •Evidence of bruxism or excessive biting or clenching force
- •Abutment tooth that opposes a removable partial denture
- •Abutment tooth for fixed partial dentures
- •Gingival recession of an abutment tooth more than 1 mm from the cementoenamel junction
- •Tooth with first or second degree of tooth mobility
- •Tooth with extensive carious lesions
结局指标
主要结局
Clinical performance
时间窗: 5 years
次要结局
- wear rate(2 years)
研究者
Kallaya Suputtamongkol
Dr.
Mahidol University