...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Veterinary Dentistry >Assessment of the Role of the Mandibular First Molar Tooth in Mandibular Fracture Patterns of 29 Dogs
【24h】

Assessment of the Role of the Mandibular First Molar Tooth in Mandibular Fracture Patterns of 29 Dogs

机译：评估下颌前磨牙在29只狗下颌骨骨折模式中的作用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Mandibular fractures at the level of the first molar tooth (M1) were assessed in 29 dogs. Patients included in this study demonstrated fractures involving the M1 tooth, tooth bud, or alveolus (if tooth was absent). Diagnostic imaging evaluation included intraoral dental radiography and/or computed tomography (CT) with 3D reconstruction. The distal root was involved in 55.2% of cases, mesial root involvement in 34.5% of cases, and the tooth was absent in 10.3% of cases. Fractures were described in the rostral-to-caudal direction. Fractures tended to occur in the caudoventral direction (P = .057). Cases with CT imaging were also evaluated in the buccolingual direction. Fractures were found to occur significantly more frequently in the caudolingual direction (P = .022). When classifying fracture patterns along M1 according to a previously published fracture classification system, it was noted that fractures occurred significantly more frequently in either the mesial (P .001) or distal (P .001) roots by coursing along the periodontal ligament space and communicating with the periapical region. Active or nonworsening periodontitis was described as radiographic or tomographic evidence of (>25%) bone loss in the vertical or horizontal direction. Periodontitis was associated with 7 (24.1%) cases. These results help frame the challenges associated with fracture repair at the M1 location. Treatment planning considerations should include limited structural support caudal to fractures involving the distal root, more frequent involvement of the distal root over the mesial root, risk for poor endodontic prognosis, and the predilection for unfavorable fracture patterns to occur.
机译：在29只狗中评估第一磨牙牙齿（M1）水平下的下颌骨折。本研究中包含的患者展示了涉及M1牙，牙芽或肺泡（如果牙齿的牙齿）的骨折。诊断成像评估包括具有三维重建的内部牙科射线照相和/或计算机断层扫描（CT）。远端根部涉及55.2％的病例，歧视患者中的案例引发，牙齿在10.3％的病例中缺席。在朝向尾部描述骨折。骨折倾向于在剖面方向上发生（p = .057）。 CT成像的病例也在Buicoling方向上进行评估。发现骨折在剖视方向上更频繁地发生（p = .022）。当根据先前公开的骨折分类系统沿M1进行分类骨折模式时，注意到通过沿着牙周沿线的群体（P＆lt中）或远端（P＆。）或远端（p＆，p <.001）根本更频繁地发生骨折韧带空间和与恐慌区域沟通。活性或非加强牙周炎被描述为垂直或水平方向上的（> 25％）骨损失的放射线或断层术。牙周炎与7例（24.1％）病例相关。这些结果有助于框架M1位置与断裂修复相关的挑战。治疗计划考虑应包括有限的结构支持尾部对涉及远端根部的骨折，远端根部更频繁地涉及阴部根系，缺乏症预后的风险，以及对不利的骨折模式发生的偏移。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号