对一级学科微型实习的根际空间评估

N. Al-Jaf, Rma Wahab, Mia Hassan
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引用次数: 0

摘要

目的:评估具有I类矢状骨关系的上颌和下颌骨的根间间隙作为微型支架放置的辅助。材料与方法:采用锥束计算机断层扫描(CBCT)对47例具有I类骨骼关系的成人受试者进行研究。第一前磨牙至第二磨牙的牙槽突在距牙髓-牙釉质交界处(C.E.J) 2个不同垂直水平(6和8mm)处获得根际间隙。结果:上颌第二前磨牙与第一磨牙之间的牙根间隙最大。下颌第一磨牙和第二磨牙之间的牙根间隙最大。所有下颌骨测量值均高于各自的上颌测量值。一般情况下,根间空间的可用性在两个弓的顶端增加,但差异不显著。在上颌,男性受试者在第二前磨牙与第一磨牙之间以及第一磨牙与第二磨牙之间的测量值明显高于8 mm水平。结论:上颌和下颌牙槽间隙的根间间隙可用于微型支架的放置。在两个弓中,更顶端的位置提供了更多的根间空间。然而,需要仔细计划以避免鼻窦穿孔。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of Interradicular Spaces for Miniscrew Placement in Class I Subjects
Objectives: To assess interradicular spaces of maxilla and mandible in subjects with class I sagittal skeletal relationship as an aid for miniscrew placement. Materials and Methods: The study was carried out using cone-beam computed tomography (CBCT) images of 47 adult subjects with class I skeletal relationship. Interradicular spaces were obtained at the alveolar processes from first premolar to second molar at 2 different vertical levels (6 and 8mm) from the cementoenamel junction (C.E.J). Results: In the maxilla, the highest interradicular space existed between second premolar and first molar. In the mandible, the highest interradicular space existed between first and second molar. All mandibular measurements were higher than their respective maxillary measurement. Generally, availability of interradicular space increases apically in both arches, but the difference is not significant. In the maxilla, male subjects’ measurement were significantly higher at 8 mm level between second premolar and first molar and between first and second molar Conclusions: Interradicular spaces in the maxillary and mandibular alveolar spaces are available for miniscrew placement. In both arches, a more apical location provides more interradicular space. However, careful planning is needed to avoid sinus perforation.
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