Direct Versus Indirect Pick up of the Locator Retentive Caps for Two Implant-retained Mandibular Overdenture: Calibration of the Manufacturer Retentive Force and the Clinical Retention (Within-patient Study)
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- measurement of overdenture retention
研究概览
简要总结
The purpose of this study will be to evaluate the effect of direct and indirect pick up of the locator retentive caps and compare the clinical results with those of the manufacturer retentive force.
详细描述
Patient selection:
For this study, 30 patients were selected from the clinic of Prosthodontic Department, Faculty of Dentistry, Mansoura University.
According to pick up technique for the locator retentive caps, the overdentures will be classified into two groups as follows; Group1: The retentive caps will be picked up by indirect method on the cast then by the direct method Group2: The retentive caps will be picked up in the patient by the direct method first then by the indirect method.
For both groups, the clinical retention will be measured after using pink and blue retentive inserts respectively.
All implants were inserted using computer-guided implant surgery and conventional loading protocol was used.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 40 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •● Free from any systemic disease that may interfere with the osseointegration of implants.
- •Patients will have completely edentulous maxilla and mandible for at least 6 months after the last extraction.
- •Patients will have normal maxilla mandibular relationships.
- •Mandibular arch with residual alveolar ridges covered with firmly attached mucosa.
- •The width of the mandibular ridge in the canine area will be sufficient for the installation of the implants in parallel anteroposterior and mesiodistal directions.
排除标准
- •medically compromised patients smokers uncontrolled metabolic diseases ( diabetes mellitus ) uncooperative patients
研究组 & 干预措施
Group I
GroupI: The retentive caps will be picked up by the indirect method on the cast first, then by the direct method.
干预措施: dental implants in the mandible (Procedure)
Group I
GroupI: The retentive caps will be picked up by the indirect method on the cast first, then by the direct method.
干预措施: locator attachment and overdenture (Device)
Group II
GroupII: The retentive caps will be picked up by the direct method on the cast first, then by the indirect method.
干预措施: dental implants in the mandible (Procedure)
Group II
GroupII: The retentive caps will be picked up by the direct method on the cast first, then by the indirect method.
干预措施: locator attachment and overdenture (Device)
结局指标
主要结局
measurement of overdenture retention
时间窗: three months
measuring the clinical retention of the locator retained mandibular overdenture by forcemeter
次要结局
- marginal bone loss(one year)
- plaque index(one year)
- gingival index(one year)
- pocket depth(one year)