Comparison of Long Term Clinical Efficacy of Different Computer-Aided Design & Computer-Aided Manufacturing(CAD/CAM) Materials for the Restoration of Teeth With Root Canal Therapy With Endocrown or 90° Shoulder Endocrown
试验速览
- 阶段
- 不适用
- 入组人数
- 200
- 试验地点
- 1
- 主要终点
- USPHS criteria for dental restorations assessment
研究概览
简要总结
Use chairside Computer-Aided Design & Computer-Aided Manufacturing(CAD/CAM) system (computer aided design / manufacture), using glass ceramic zirconia enhanced lithium silicate glass ceramics (VITA, SUPRINITY, VS) material, compare the difference of firmness, comfort and durability between two kinds of root canal restoration methods:endocrown and 90° shoulder endocrown. Objective to establish the optimal method and material for the restoration of the teeth with root canal therapy.
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 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •18-60 year old patients with healthy body, the tooth is molar, root tip no obvious damage, no root fracture by X-ray;
- •after complete root canal therapy, the remaining 4 wall intact tooth tissue;
- •after complete root canal therapy, the remaining 3 wall intact tooth tissue;
- •have good oral hygiene habits;
- •agreed to participate in the trial and signed the informed consent form;
- •patients who are not participating in other clinical trials;
- •after completion of the repair, compliance with the USPHS evaluation criteria of marginal density class A cases
排除标准
- •obvious destruction of the apical tissue and large cysts;
- •severe periodontitis patients;
- •oral malignant tumor patients;
- •radiotherapy patients;
- •pregnant women;
- •patients with mental illness or systemic diseases;
- •people who can not take care of themselves;
- •the researchers believe that is not suitable for the test.
结局指标
主要结局
USPHS criteria for dental restorations assessment
时间窗: 2 Years
This criteria is composed of three dimensions (biological, functional and esthetic), each consisting of several items that are assessed by clinical and radiographic examination. Some items are evaluated quantitatively, others visually.The score of all items is retained as the overall score of the restoration.
次要结局
- Integrity of restoration(2 Years)
- Marginal Adaptation(2 Years)
- Marginal discoloration(2 Years)