NCT03696849Unknown不适用
Patient Satisfaction and Clinical Assessment of Surface Roughness and Wear of Enamel Antagonists for Polished Versus Glazed Posterior Lithium Disilicate Glass Ceramic Crowns
适应症
干预措施
试验速览
- 阶段
- 不适用
- 入组人数
- 28
- 主要终点
- Antagonists enamel wear using profilometer
研究概览
简要总结
It is believed that final glazing yields the most acceptable ceramic surfaces in terms of smoothness. However, since reglazing must be performed in a dental laboratory with the use of a thermal furnace, it requires multiple office visits. Repeated firings have a destructive effect on ceramic surfaces and can cause deformation. Conversely, polishing is easy and simple and can be accomplished in a single session.
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
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients from 18-50 years old who are able to read and sign the informed consent document.
- •Physically and psychologically able to tolerate conventional restorative procedures.
- •Have no active periodontal or pulpal diseases, have teeth with good restorations.
- •Patients have no temporomandibular disorders.
- •Each participant needed a crown on either a first or second premolar or first or second molar in any arch.
- •Teeth selected shoud include:
- •restorability with a crown:root ratio of at least 1:
- •presence of an opposing natural tooth which was non-restored or minimally restored.
- •the presence of two non-restored or minimally restored teeth opposing each other on the same quadrants as the crowned tooth and the opposing to serve as enamel controls. Minimally restored was defined as teeth which have no restoration greater than a Class II amalgam restoration.
- •Willing to return for follow-up examinations and evaluation.
- •Exclusion criteria
- •Patients in the growth stage with partially erupted teeth.
- •Patients with poor oral hygiene and motivation.
- •Pregnant women.
- •Psychiatric problems or unrealistic expectations.
- •Lack of opposite occluding dentition in the area intended for restoration.
- •Patients with temporomandibular disorders.
排除标准
- 未提供
研究组 & 干预措施
glazed emax Press
Active Comparator
干预措施: polished emax Press (Other)
Polished emax Press
Experimental
干预措施: polished emax Press (Other)
结局指标
主要结局
Antagonists enamel wear using profilometer
时间窗: 1 year
wear of enamel antagonists opposing to emaxPress crowns that will be measured in um
次要结局
- Restoration surface Roughness using profilometer(1 year)
- Patient satisfaction(1 year)
研究者
Mervat Mourad Rouchdy Farid
assisstant lecturer, fixed prosthodontics department, faculty of oral and dental medicine
Cairo University
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