Retrospective Study on the Effect of Different Implant Positions for Implant Retained Mandibular Overdenture: Radiographic Evaluation of the Circumferential Bone Level and Bone Remodeling in the Anterior and Posterior Mandible
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 12
- 试验地点
- 2
- 主要终点
- implant survival rate
研究概览
简要总结
This study will aim to evaluate the effect of two different implant positions, lateral incisors, and canine areas, on anterior and posterior ridge resorption and bone remodeling after different periods of denture insertion.
详细描述
Twelve patients will be recruited from a previous study (14), having two-implant mandibular overdentures. Patients recalled from the database set of the clinic of the Removable Prosthodontic Department, Faculty of Dentistry, Mansoura University. The patients will be grouped based on the position of the two implants.
All patients will be informed about all prosthetic procedures that will be done. Also, they will sign the consent form of the ethical committee of the faculty of dentistry, at Mansoura University.
All selected patients with the following criteria: mandibular two implants retained overdenture opposing complete edentulous maxillary arch, attended the previous follow-up recalls with previous CBCT examination. Patients who didn't attend previous follow-up recalls, didn't perform radiographic follow-up, or had para-functional habits will excluded from the study Patients will be divided into two groups Group A (6 patients): Patients having two mandibular implants in lateral incisor positions.
Group B (6 patients): Patients having two mandibular implants in canine positions.
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
- 50 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients with mandibular two implants retained overdenture opposing complete edentulous maxillary arch,
- •attended the previous follow-up recalls with previous CBCT examination.
排除标准
- •Patients who didn't attend previous follow-up recalls, didn't perform radiographic follow-up, or had para-functional habits will be excluded from the study.
研究组 & 干预措施
lateral incisor group
Patients having two mandibular implants in lateral incisor positions.
干预措施: over-denture (Other)
canine group
Patients having two mandibular implants in canine positions
干预措施: over-denture (Other)
结局指标
主要结局
implant survival rate
时间窗: 5 years
index
circumferential bone loss
时间窗: 5 years
peri-implant bone changes in mm
posterior bone changes
时间窗: 5 years
bone loss in mm
次要结局
未报告次要终点
研究者
Khloud Ezzat
lecturer
Mansoura University