Wear Evaluation of Antagonist Enamel to Monolithic Zirconia, Lithium Disilicate and Metal-ceramic Restorations. Prospective Randomised Study
试验速览
- 阶段
- 不适用
- 入组人数
- 75
- 试验地点
- 2
- 主要终点
- Enamel volume loss
研究概览
简要总结
The aim of this study is to evaluate the wear produced in the short and medium term by monolithic zirconia, metal-ceramic and lithium disilicate restorations on the antagonist natural enamel in patients with fixed prostheses, assessing the factors that may influence this wear.
The investigators will also analyse whether the wear of the tooth antagonistic to the different restorations differs significantly with respect to the wear of the natural tooth (control group). The null hypothesis is that there are no significant differences.
详细描述
The study will be carried out on patients who will be candidates for treatment with full coverage restorations on teeth (single crowns). These crowns will be made of one of the following materials: monolithic zirconia, lithium disilicate or metal-ceramic, which will be cemented according to the guidelines defined in the scientific literature.
Inclusion criteria will be: patients in need of full coverage crowns on a first or second premolar or first or second molar in any arch, over 18 years of age, no contraindications for dental treatment, good oral hygiene, no periodontal disease or treated periodontal disease, absence of temporomandibular disorder and/or untreated habits or parafunctions.
The aim of this study is to evaluate the wear produced in the short and medium term by monolithic zirconia, metal-ceramic and lithium disilicate restorations on the antagonist tooth in patients with fixed prostheses, assessing the factors that may influence this wear.
The investigators will also analyse whether the wear of the tooth antagonistic to the different restorations differs significantly with respect to the wear of the natural tooth (control group). The null hypothesis is that there are no significant differences.
Once the treatment has been completed, the patient must attend routine check-ups in which a complete intraoral exploration, a scan and data collection for both arches will be carried out in order to analyse the following variables: wear of the antagonist tooth to ceramic restorations, wear of the restoration itself and physiological wear of the natural tooth. The same intervention will be carried out for the duration of the project, at the following time intervals: baseline (day of cementation of the restoration), 1 month, 6 months and annually. If an intraoral scanner is not available, silicone impressions will be made, which will be cast with plaster and scanned extraorally.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Enamel volume loss
时间窗: Through study completion, an average of two years
Analyse volume loss of enamel antagonist to monolithic zirconia, lithium disilicate and metal ceramic restorations. The investigators will also analyse whether the wear of the tooth antagonistic to the different restorations differs significantly with respect to the physiological wear of the natural tooth (control group).
次要结局
- Survival(Through study completion, an average of two years)