The Effect of Different Types of Resin Cements on the Color Stability of Two Different Types of Ceramic Veneers (Randomized Controlled Clinical Trial)
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 44
- 试验地点
- 1
- 主要终点
- Color stability assessment
研究概览
简要总结
Aim of the study was to evaluate the color stability of lithium disilicate ceramic veneers and zirconia reinforced lithium silicate ceramic veneers by using two different types of resin cements including light cured and dual cured cements.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Triple (Participant, Care Provider, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 45 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Good oral hygiene with compliance to perform strict oral hygiene measures (periodontal screening index 0-1).
- •Slight malposition.
- •Teeth with spacing.
- •Teeth with discoloration
排除标准
- •Advanced periodontitis, gingivitis, or recession.
- •Abutments with subgingival restorations or root caries.
- •Parafunctional habits.
- •Undergoing orthodontic treatment.
- •Presence of orthodontic appliance.
- •Obvious dentition malalignment.
- •Mandibular prognathism.
- •Maxillary retrognathism.
结局指标
主要结局
Color stability assessment
时间窗: up to 12 months
VITA Easyshade® Advance spectrophotometer will be used to measure the shade on the CIELab system, which defines color on 3 axes: L\*, lightness, ranging from 0 (black) to 100 (white); and a\* and b\*, chromatic characteristics ranging from red (+a\*) to green (-a\*) and yellow (+b\*) to blue (-b\*) The color will be measured 3 times, and the mean L\*, a\*, and b\* values will be calculated and used to measure color change (delta E)
次要结局
未报告次要终点
研究者
amr elshimy
Assistant Lecturer of Fixed Prosthodontics
Alexandria University