通过有限元分析,研究受冲击的第三骨位置和方向对骨骨折的坏裂骨折的影响
İrfan Üstündağ1, Erkan Mecu2, Yunus Çetiner2
1Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, İnönü University, 44280 Campus, Malatya, Turkey. dt.irfanustundag@gmail.com.
Head & face medicine
|December 16, 2025
概括
受影响的第三牙的方向和位置会影响在松骨骨折 (SSRO) 过程中出现坏裂的风险. 半角和中央冲击的风险较低,而垂直或口腔/舌头冲击增加了并发症的可能性.
科学领域:
- 口腔和牙面部外科手术
- 生物机械工程 生物机械工程
- 牙科植入物学 牙科植入物学
背景情况:
- 斜裂骨架骨切除术 (SSRO) 是口腔和面外科手术中常见的一种手术.
- 坏分裂是SSRO期间的重大并发症,可能导致不利的结果.
- 受影响的第三特征对SSRO并发症的影响需要进一步调查.
研究的目的:
- 评估受影响的第三角方向和口舌位置在SSRO期间对坏裂发病率的影响.
- 利用有限元分析 (FEA) 在SSRO期间模拟下模型中的应力分布.
- 为了确定与坏裂风险增加相关的特定的第三骨配置.
主要方法:
- 构建了12个独特的下模型,代表了第三的方向 (垂直,两角形,水平,半角形) 和位置 (口腔,舌头,中央) 的组合.
- 施加20N的力模拟史密斯扩散器仪器从骨切线到近端和远端段.
- 有限元分析用于评估最大主应力和应力分布模式.
主要成果:
- 最大主应力按照以下顺序进行:垂直 > 离角 > 水平 > 半角.
- 口腔位置导致最大的压力,其次是舌头和中央位置.
- 这些压力趋势在所有评估的压力标准中是一致的.
结论:
- 受影响的第三的方向和位置显著影响SSRO期间不良分裂的风险.
- 半角形和中央位置的牙与较低的压力和降低的风险有关.
- 建议在手术前提取高风险的受影响的第三牙,以减轻SSRO并发症.
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