NCT03146780已完成不适用
Clinical Evaluation of Digital Versus Conventional Impressions Part I: Marginal and Internal Fit
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 22
- 试验地点
- 2
- 主要终点
- Number of participants with a correctly fitted prosthesis
研究概览
简要总结
This study aims to compare how a single cap best fit on a tooth that is fabricated with digital and conventional impression techniques.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age of patient ≥ 18 years old
- •Good oral hygiene and compliance
- •In need of a single full-coverage crown on any vital premolar or first molar tooth
- •Opposing tooth is free of indirect restoration (crown)
- •Asymptomatic tooth free of pathology
- •No requirement for additional treatment (endodontic treatment, post and core, crown lengthening)
- •Anticipated supragingival or equigingival crown margin
- •Anticipated crown margin on natural tooth structure
- •Adequate abutment height after tooth preparation (minimum 4mm)
排除标准
- •Age of patient less than 18 years old
- •Poor oral hygiene and calculus on sample teeth
- •In need of a single full-coverage crown on tooth other than a vital premolar or first molar tooth
- •Opposing tooth is restored with indirect restoration
- •Periapical or periodontal pathology
- •Anticipated pulp exposure or need for additional treatment (endodontic treatment, post and core, crown lengthening)
- •Anticipated subgingival crown margin
- •Anticipated crown margin on direct restoration
- •Inadequate abutment height after tooth preparation
结局指标
主要结局
Number of participants with a correctly fitted prosthesis
时间窗: From impression stage to crown delivery, approximately four weeks. There are no follow up visits once crown is delivered.
Correct fit assessed by clinical assessment of internal and marginal crown fit.
次要结局
未报告次要终点
研究者
Konstantinos Chochlidakis
Associate Professor
University of Rochester
研究点 (2)
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