NCT06309706已完成不适用
A Retrospective Cone Beam Computed Tomography Study of The Lateral Wall Bony Window
The Dental Hospital of Zhejiang University School of Medicine1 个研究点 分布在 1 个国家目标入组 1,000 人开始时间: 2019年9月1日最近更新:
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 1,000
- 试验地点
- 1
- 主要终点
- Lateral wall thickness
研究概览
简要总结
Three experienced observers were asked to screen all the CBCT images from the Stomatology Hospital,Zhejiang University School of Medicine, between September 1, 2019 and December 31, 2019, and counted 1000 maxillary sinus CBCT images that met the criteria. Later, 1000 CBCT images were further measured and analyzed, and indicators such as maxillary sinus buccal wall thickness, morphology, whether there is blood vessel or not, whether there is bone septa or not were counted. The variation rules and related factors were summarized by SPSS analysis.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Images were included if the following criteria were met: (1) patients were 18 years or older, (2) presence of teeth adjacent to or opposing the edentulous area allowing the location of the edentulous ridges corresponding to the tooth site to be identified, (3) presence of maxillary dentition defect in any tooth positon of the second premolar, the first molar or the second molar, (4) the maxillary sinus to be measured was visible from its floor to at least 15 mm high.
排除标准
- •Images were excluded if any of the following criteria were met: (1) images were unclear or incomplete due to scattering or other reasons, (2) pristine maxillary posterior extraction sites after less than 3 months of healing and the tooth extraction sockets could be obviously identified, (3) the maxillary sinus had been grafted for implant-supported prosthesis, (4) implants or other prosthetic devices were present in maxillary posterior edentulous position, (5) orthodontic brackets and wires in images were present; (6) the location of the edentulous sites could not be determined, (7) sinus pathology was present that made the measurement impossible.
结局指标
主要结局
Lateral wall thickness
时间窗: 2019-09-01~2019-12-31
The thickness of the maxillary sinus lateral wall
次要结局
未报告次要终点
研究者
研究点 (1)
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