Clinical Assessment of Endodontically Treated Posterior Teeth Prepared With Two Occlusal Designs and Two Ceramic Full Coverage Restorations (Randomized Clinical Trial)
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- Fracture
研究概览
简要总结
The aim of this study was to assess the impact of flat occlusal preparation design (FOD) of endodontically treated molars on the fracture resistance and distribution of stresses among a ceramic crown-molar structure when compared to two planes occlusal preparation design (TOD).
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)
盲法说明
Triple blinded: The trial participants, the outcome assessors and the data analysis statistician are blinded
入排标准
- 年龄范围
- 20 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients with posterior root canal treated teeth that require full coverage restoration.
- •20 - 50 years old.
- •Males or Females.
- •Good oral hygiene.
- •Presence of favorable occlusion and teeth are in normal alignment with the adjacent teeth.
- •Patients agreed to return to follow-up evaluation.
排除标准
- •Active periodontal or pulpal diseases.
- •Lack of opposing dentition.
- •Severe medical complications.
- •Pregnancy.
- •Lack of compliance.
- •Evidence of parafunctional habits
- •Temporomandibular joint disorders
研究组 & 干预措施
Flat occlusal scheme
occlusal design
干预措施: Monolithic zirconia crown (Procedure)
Flat occlusal scheme
occlusal design
干预措施: Monolithic lithium disilicate crown (Procedure)
Anatomic occlusal scheme
occlusal design
干预措施: Monolithic zirconia crown (Procedure)
Anatomic occlusal scheme
occlusal design
干预措施: Monolithic lithium disilicate crown (Procedure)
结局指标
主要结局
Fracture
时间窗: 12 months
Using Modified United States Public Health Service (USPHS) criteria
次要结局
- Marginal adaptation(12 months)
- Marginal discoloration(12 months)
- Secondary caries(12 months)
研究者
Sameh Abou-steit
Lecturer of fixed prosthodontics
Cairo University