Proximity of maxillary posterior teeth roots to maxillary sinus and adjacent structures using Denta scan(®).
Proximity of maxillary posterior teeth roots to maxillary sinus and adjacent structures using Denta scan(®).
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DOI：
10.4103/0975-962x.189339
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发表时间：
2016-09
期刊：
影响因子：
--
通讯作者：
Malhotra A
中科院分区：
文献类型：
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作者：
Fry RR;Patidar DC;Goyal S;Malhotra A
该研究旨在调查上颌后牙根与上颌窦的接近程度，并使用Denta scan®测量上颌后牙根与窦底的距离以及牙根与牙槽骨皮质骨之间的骨厚度。研究样本包括50名正常萌出双侧上颌第一前磨牙至上颌第二磨牙的患者的Denta scan®图像。每个牙根与上颌窦的垂直关系被分为四种类型的Denta scan®图像（基于Jung在2009年的分类）。测量并分析上颌窦底与牙根的距离、牙根与牙槽骨皮质板之间的骨厚度。上颌磨牙颊根突入上颌窦的情况较多。上颌后牙根中，第一磨牙近颊根和第二前磨牙腭根与上颌窦底相邻。上颌第一前磨牙和上颌第一磨牙的牙根颊侧骨厚度明显薄于其他上颌后牙根。了解上颌后牙与上颌窦的解剖关系，不仅可以指导我们制定正确的术前治疗计划，而且可以避免在进行涉及上颌后牙的口腔小手术时可能遇到的并发症，因为上颌后牙靠近上颌窦。
The study aimed to investigate the proximity of maxillary posterior teeth roots to maxillary sinus and measure the distance of maxillary posterior teeth roots and the sinus floor as well as the thickness of bone between the roots and alveolar cortical bone using Denta scan®. The study samples include Denta scan® images of fifty patients with normally erupted bilateral maxillary first premolar to maxillary second molar. The vertical relationship of each tooth root with maxillary sinus is classified into four types of Denta scan® images (based on the classification by Jung in 2009). The distance between the sinus floor and root, and the bone thickness between the root and alveolar cortical plate will be measured and analyzed. The buccal root of the maxillary molars was more commonly protruded into the maxillary sinus. Among the roots of maxillary posterior teeth, mesiobuccal root of first molar and palatal root of second premolar were found in close proximity to the floor of maxillary sinus. The bone thickness on the buccal aspect to the root was significantly thinner in the maxillary first premolar and maxillary first molar as compared to other maxillary posterior teeth roots. Knowledge of anatomical relationship between the maxillary posterior teeth and maxillary sinus guides us not only in proper preoperative treatment planning but also avoids the possible complications encounter while performing the minor oral surgical procedures involving maxillary posterior teeth, which are close to the maxillary sinus.