在CAD-CAM定制支柱中与螺丝松动相关的风险因素:一项为期6年的回顾性研究
Changmin Ju1, Younghoo Lee2, Seoung-Jin Hong3
1Graduate student, Department of Prosthodontics, Graduate School, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.
The Journal of prosthetic dentistry
|July 28, 2023
概括
在定制的部植入物假体中,螺丝松动与磨损严重程度,单单元设计和假牙医的经验有关. 嘴舌角也影响放松风险,突出了植入物稳定性的关键因素.
科学领域:
- 牙科植入物学 牙科植入物学
- 牙修复 牙修复 牙修复 牙修复 牙修复
- 生物材料工程 生物材料工程
背景情况:
- 通过CAD-CAM制造的定制支架在植入物支的假肢中很普遍.
- 有限的研究存在于这些定制支柱的螺丝松动因素.
研究的目的:
- 为了回顾分析与使用CAD-CAM定制支柱的植入式假肢中螺丝松动相关的风险因素.
- 确定影响定制支架牙植入物的稳定性的关键参数.
主要方法:
- 在6年内对255名患者 (401个植入物) 进行了回顾性分析,检查了临床数据,X光片和CAD文件.
- 评估因素包括磨损,假肢类型,植入物角度,螺杆接入孔位置和假牙医的经验.
- 统计分析包括费舍尔精确测试,邦费罗尼校正和费尔特方法逻辑回归.
主要成果:
- 螺丝松动与磨损严重程度有显著的相关性 (P<.001),并且在单单元假肢中比多单元假肢 (P<.001) 更常发生.
- 假牙医的经验 (P<.001) 和口舌植入物/角 (P<.05) 是重要的影响因素.
- 对于年龄,性别,植入物位置,对抗剂类型,半距离角或螺杆接入孔位置没有发现显著的影响.
结论:
- 螺丝松动的主要风险因素包括磨损程度,口舌角,假肢单元类型和假牙医的经验.
- 这些发现为改善CAD-CAM定制的脚植入体假肢的长期稳定性提供了洞察力.
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