Department of Oral and Maxillofacial Surgery, Mamak Oral and Dental Health Hospital, Ankara, Turkey.
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hacettepe University, Ankara, Turkey.
Int J Oral Maxillofac Surg. 2021 Feb;50(2):251-257. doi: 10.1016/j.ijom.2020.05.018. Epub 2020 Jun 26.
This study sought to determine the rate of sinus membrane perforation in patients undergoing crestal sinus grafting, as well as the effect of Schneiderian membrane thickness and residual bone height (RBH) on membrane perforation, using cone beam computed tomography. The study included 25 patients undergoing 44 crestal sinus grafting procedures. The sites for crestal sinus grafting were divided into a control group (RBH≥5mm) and a test group (RBH<5mm). All sinus grafting procedures were also categorised based on membrane thickness: group A (<1mm), group B (1-2mm), and group C (≥2mm). The rate of membrane perforation was 18.2%. The median RBH measurement was 5.59mm. No statistically significant difference in membrane perforation rate was found between the test and control groups (P=0.262). The median thickness of the Schneiderian membrane was 1.35mm. There was no statistically significant difference in membrane perforation among the three membrane thickness groups (P=0.431). No significant correlation between RBH and membrane perforation was observed, although clinical observation indicated that there was a tendency for an increased membrane perforation rate in the presence of a RBH<5mm. The perforation rate was found to be at its highest when the membrane was thinner than 1mm.
本研究旨在通过锥形束计算机断层扫描（CBCT）确定接受牙槽嵴窦底提升术的患者中窦膜穿孔的发生率，以及探讨施氏膜厚度和剩余骨高度（RBH）对窦膜穿孔的影响。该研究纳入了 25 名接受 44 例牙槽嵴窦底提升术的患者。窦底提升术的部位分为对照组（RBH≥5mm）和实验组（RBH<5mm）。所有的窦底提升术也根据膜厚度进行分类：A 组（<1mm）、B 组（1-2mm）和 C 组（≥2mm）。膜穿孔率为 18.2%。RBH 的中位数测量值为 5.59mm。实验组和对照组之间的膜穿孔率无统计学差异（P=0.262）。施氏膜的平均厚度为 1.35mm。在三组膜厚度中，膜穿孔率无统计学差异（P=0.431）。虽然临床观察表明，在 RBH<5mm 时，窦膜穿孔率有增加的趋势，但未发现 RBH 与窦膜穿孔之间存在显著相关性。当膜厚度小于 1mm 时，穿孔率最高。
