Retention of Three Different Secondary Copings in Telescopic Attchments Used to Stabilize Implant Retained Mandibular Overdenture a Randomized Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 30
- 试验地点
- 2
- 主要终点
- retention forces
研究概览
简要总结
This study was conducted on thirty patients. These patients were divided into three groups in a random manner to compare the retention forces between three different types of secondary crowns used to stabilize two implant mandibular overdentures. in all groups the primary coping was fabricated from milled titanium while the secondary coping was milled titanium in first group ,3D printed cobalt chromium in the second group and milled poly ether ketone ketone in the third group the retention forces was measured using forcemeter immediately after insertion and after 3,6, months
详细描述
A thirty edentulous patients Was selected from outpatient clinic of
Exclusion criteria:
- systemic and metabolic disorders that may complicate osseointegration.
- Patients receiving bisphosphonates.
- patients receiving radiotherapy. The patients was assigned into three groups using balanced randomly. Patients was randomly allocated into one of three groups using random numbers generated using Excel program.
Group I included patients who received 2 implants and telescopic overdentures with milled titanium primary and secondary coping Group II included patients who received telescopic overdentures with milled titanium primary coping and three dimensionally printed secondary coping GroupIII patients recived milled titanium primary coping and poly ether ketone ketone secondary copings (PEKK) secondary coping All patients signed an informed consent.
Surgical and prosthetic protocols:
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, Investigator)
入排标准
- 年龄范围
- 55 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •un-satisfaction with the retention of mandibular dentures due to mandibular ridge atrophy and desired to have more stable prosthesis,
- •sufficient remaining bone in height, width and thickness in the interforaminal area to allow installation of at least 3.5mm diameter implants.
- •Adequate amount of interarch space of at least 12mm from the occlusal plane of the mandibular denture to the mucosa of the ridge. Patients with the 4- age range 55 to 75 years.
排除标准
- •systemic and metabolic disorders that may complicate osseointegration. 2) Patients receiving bisphosphonates. 3) patients receiving radiotherapy.
结局指标
主要结局
retention forces
时间窗: from insertion time up to one year follow up
retention forces of three different type secondary coping telescopic attachments used to stabilize two implant mandibular overdenture these attachments are made of either milled titanium, 3D printed cobalt chromium or milled poly ether ketone ketone
次要结局
未报告次要终点
研究者
Moatz Aly Ahmed Hussien
Assistant lecturer at prosthodontic department
Beni-Suef University