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临床试验/NCT05141851
NCT05141851已完成不适用

The Impact of Thread Length on Implant Stability

University of Lisbon1 个研究点 分布在 1 个国家目标入组 23 人开始时间: 2018年6月19日最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
23
试验地点
1
主要终点
primary dental implant stability

研究概览

简要总结

Some studies show that different types of threads in tapered implants result in differences in primary stability. The aim of this study is to a perform a prospective, controlled, randomized clinical trial comparing primary and secondary stability between long and standard thread implants in the treatment of partial edentulous patients.

详细描述

The study sample consists of 23 maxillary partial edentulous patients, where 32 implants were placed, with threads of 0.7 mm or 0.3 mm in the location of premolars and molars. The comparison, in terms of primary stability, is made by measuring the ISQ value (implant stability quotient), in four locations (buccal, palatal, mesial and distal). Statistical analysis was performed using the independent T-Test.

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
Single (Participant)

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Minimum 18 years;
  • No systemic conditions that contraindicate surgery;
  • Periodontal health or periodontal disease treated as part of a periodontal support program and having a high level of plaque control;
  • Partial edentulous patients, in the upper jaw, specifically in the location of premolars and molars;

排除标准

  • Patients with insufficient quantity of bone for implant placement without bone regeneration procedures;
  • Patients who underwent medication that could affect stability and osteointegration up to 3 months prior to study initiation;
  • Patients with untreated periodontal pathology or who have not followed periodontal supportive treatment;
  • Smokers, Pregnant or lactating women.

结局指标

主要结局

primary dental implant stability

时间窗: On the 1 day of implants placement

measuring the ISQ value (implant stability quotient)

次要结局

未报告次要终点

研究者

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

Vanessa Rocha Rodrigues

Vanessa Rocha Rodrigues

University of Lisbon

研究点 (1)

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