Three-dimensional Accuracy of Direct Digital Scanning for All on Four Implants in Comparison to a Custom-made Verification Jig in Fully Edentulous Patients
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 22
- 试验地点
- 1
- 主要终点
- Vertical Deviation
研究概览
简要总结
The aim of this study is to assess the three-dimensional accuracy of direct intraoral scanning in All-on-4 implant-supported prostheses by comparing intraoral scan data with a custom-made verification jig.
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
- None
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients with complete mandibular edentulism.
- •Patients requiring full-arch rehabilitation with an All-on-4 implant concept.
- •Absence of systemic conditions that could affect bone healing or osseointegration.
- •Adequate bone volume in the anterior mandible for implant placement without the need for additional grafting.
- •Patients capable of maintaining oral hygiene
排除标准
- •Patients with uncontrolled systemic diseases (e.g., diabetes, osteoporosis).
- •History of head and neck radiation therapy.
- •Severe parafunctional habits (e.g., bruxism).
- •Patients with inadequate bone volume requiring extensive grafting procedures.
- •Active periodontal or oral infections.
研究组 & 干预措施
Scanning with the aid of jig
干预措施: Scanning with verification jig (Other)
Scanning without jig
干预措施: Direct intraoral scanning (Other)
结局指标
主要结局
Vertical Deviation
时间窗: through study completion, an average of 1 year
Analogues Saved from the Intraoral scan and those saved from stone model were superimposed. The vertical discrepancy (mm) in implant position between intraoral digital scanning and verification jig-based stone model in All-on-4 implant cases.
Angular deviation
时间窗: through study completion, an average of 1 year
Analogues Saved from the Intraoral scan and those saved from stone model were superimposed. The angular difference (degrees) in implant position between intraoral digital scanning and verification jig-based stone model in All-on-4 implant cases.
Horizontal deviation
时间窗: through study completion, an average of 1 year
Analogues Saved from the Intraoral scan and those saved from stone model were superimposed. The horizontal discrepancy (mm) in implant position between intraoral digital scanning and verification jig-based stone model in All-on-4 implant cases.
次要结局
未报告次要终点
研究者
Yasser Ahmed
Associate Professor of Fixed Prosthodontics
Alexandria University