Influence of Two Different Occlusal Schemes on Radiographic and Clinical Outcomes Following Single Molar Implant-supported Restorations. A 2-years Randomized Controlled Trial.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Marginal Bone Loss
研究概览
简要总结
Occlusal overload may lead to a number of complications; biological and mechanical such as crestal bone loss, screw loosening, prosthetic fracture and even implant failure . Inadequate occlusal scheme (occlusion) causes occlusal overload increasing mechanical stresses which are transferred to the crestal bone and implant interface, leading to complications such as; Early implant failure, Early crestal bone loss, Intermediate to late implant failure, Intermediate to late implant bone loss, Screw loosening (abutment and prosthesis coping), Uncemented restoration, Component fracture, Porcelain fracture, Prosthesis fracture and Peri implant disease .Thus, a proper implant occlusal scheme plays a major role in the outcome of the implant treatment modality.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Participant)
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 who have a single posterior (1st or second molar) bounded implant with opposing natural tooth teeth.
- •Adults above the age of
- •Good oral hygiene.
- •Patient accepts to provide informed consent.
排除标准
- •Pregnant and lactating females.
- •Medically compromised patients.
- •Patients with untreated active periodontal diseases.
- •Patients with parafunctional habits.
研究组 & 干预措施
Maximum Intercuspation
干预措施: Maximum Intercusption (Procedure)
Protective occlusion
According to the literature, Misch introduced the concept of implant-protective occlusion (IPO) (Misch and Bidez, 1994) based on basic prosthetic concepts, bone biomechanical principles and finite element analysis, which refers to an occlusal scheme designed for implant restoration, promoting the conditions for less biomechanical complications by reducing the stress to the implant interface and enhancing the longevity of the implant and prosthesis. It mainly entails the elimination of premature occlusal contacts or interferences.
干预措施: Protective occlusion (Procedure)
结局指标
主要结局
Marginal Bone Loss
时间窗: 2 years
• To evaluate marginal bone loss using bitewing radiographs in mm.
Stability
时间窗: 2 years
• to assess implant micromotion in both groups by resonance frequency analysis (Osstell®) in mm.
次要结局
未报告次要终点