Association of Occlusal Force Distribution and Bone Resorption in Implant Supported Overdentures
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 46
- 主要终点
- Residual ridge resorption
研究概览
简要总结
To investigate the residual ridge resorption at anterior and posterior maxillary and posterior mandibular ridges among conventional complete dentures and implant overdenture wearers, and determine its association with the relative occlusal forces distribution, treatment groups and other patient variables.
详细描述
A total of forty-six edentulous patients participated in this clinical study divided into two groups as following; complete denture group (CD) consists of 23 patients wearing conventional complete dentures and another Implant overdenture group (IOD) consists of 23 patients wearing mandibular complete overdenture with 2 implants. Two panoramic radiographs at baseline and in a follow-up to 7 years were used to measure the ratio of bone changes between the anatomical bone area and the reference area in the maxillary and the mandibular ridges. The occlusal contacts percentage of force in maximum intercuspation anteriorly and posteriorly were recorded for both groups by using T-Scan III system.
Oral and written information in English or Malay language, regarding the study, was provided and written consent obtained before enrolment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 49 Years 至 89 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients wearing mandibular IODs opposing conventional maxillary CDs.
- •Patients wearing conventional maxillary and mandibular CDs.
- •Clearly visible anatomic landmarks of the panoramic radiography image.
排除标准
- •Patients with a history of temporomandibular joint dysfunction.
研究组 & 干预措施
IOD group
Panoramic Radiographs and T-Scan III occlusal system
干预措施: Panoramic Radiograph (Radiation)
IOD group
Panoramic Radiographs and T-Scan III occlusal system
干预措施: T-Scan III occlusal system (Device)
CD group
Panoramic Radiographs and T-Scan III occlusal system
干预措施: Panoramic Radiograph (Radiation)
CD group
Panoramic Radiographs and T-Scan III occlusal system
干预措施: T-Scan III occlusal system (Device)
结局指标
主要结局
Residual ridge resorption
时间窗: 7 years
To estimate residual ridge resorption in patients wearing implant overdentures and complete dentures using area index radiography method.
次要结局
- Occlusal force distribution(1 year)