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临床试验/NCT07666763
NCT07666763尚未招募不适用

Influence of Acetal Resin Versus Nylon Elastic Cap on Crestal Bone Loss in Mandibular Implant-Supported Overdenture

Future University in Egypt0 个研究点目标入组 22 人开始时间: 2026年7月1日最近更新:

试验速览

阶段
不适用
状态
尚未招募
入组人数
22

研究概览

简要总结

Objective: To evaluate and compare the effect of two different attachment housing materials-Acetal Resin (Polyoxymethylene) versus conventional Nylon elastic caps-on marginal crestal bone loss around dental implants supporting a mandibular overdenture. It also evaluates peri-implant clinical tissue health by measuring pocket depth and the gingival bleeding index.

详细描述

Study Design & Timeline: A prospective, double-blind, randomized controlled clinical trial with a 1:1 allocation ratio. Clinical and radiographic outcomes will be evaluated at overdenture insertion (baseline), and at 6 and 12 months post-insertion.ethodology & Analysis: Pre-operative bone volume will be assessed via Cone Beam CT (CBCT). Crestal bone loss will be measured using the long cone parallel radiographic technique , while pocket depth and gingival bleeding will be measured using a William's graduated probing device. Data will undergo normality testing to determine the use of parametric (Independent t-test, Repeated Measures ANOVA) or non-parametric (Mann-Whitney, Friedman) statistical analyse

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
Triple (Participant, Care Provider, Outcomes Assessor)

入排标准

年龄范围
40 Years 至 60 Years(Adult)
性别
Male
接受健康志愿者

入选标准

  • Completely edentulous mandible.
  • Sufficient bone height/width in mandibular residual ridges.
  • Angles classification class I.
  • Sufficient inter-arch distance

排除标准

  • TMJ disorders.
  • Hypertensive
  • Cancer patients.
  • Osteoporosis.
  • Immunosuppressive disease
  • Any disease affecting bone/implant stability.

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Seif eldin Diaa Ezzat

Postgrad stuident

Future University in Egypt

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