A Retrospective Study on Use of Ultrasonography and Cone-Beam Computed Tomography for Evaluating Peri-implant Tissue
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 4
- 试验地点
- 1
- 主要终点
- Crestal bone thickness
研究概览
简要总结
Objectives: Although cone-beam computed tomography (CBCT) is becoming a standard of care in implant therapy, concerns have been raised recently about its limitation in imaging peri-implant tissues due to artifacts. The aim of present study was to demonstrate the complementary role of ultrasound (US), for a comprehensive examination of peri-implant tissues in live humans. Material and Methods: Patients with > 1 implant, a CBCT scan, an US scan, and clinical photographs taken during the open-bone surgery were included. The crestal bone thickness (CBT) and facial bone level (FBL) were measured on both modalities, and direct FBL measurements were also made on clinical images. The correlation plots were made to evaluate the measurement agreements between the 3 methods.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Retrospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •the patients had to have ≥ 1 implant with a CBCT scan, US scan, and clinical photographs taken during the surgery, e.g. a revision/explantation surgery due to peri-implantitis or a 2nd stage uncover surgery.
排除标准
- 未提供
研究组 & 干预措施
Implant group
Patients with 1 or more implants with CBCT, ultrasound and open-bone images
结局指标
主要结局
Crestal bone thickness
时间窗: up to 100 months after implant surgery.
facial bone thickness measured at 1 mm apical to bone crest
次要结局
- Facial bone height(up to 100 months after implant surgery.)
研究者
Hsun-Liang Chan
Clinical Associate Professor
University of Michigan