Abstract：
To investigate the association of perforation of the maxillary sinus floor by dental implants with mucosal thickening and to describe its characteristics in perforated cases.
One-hundred and twenty-nine maxillary sinuses of 93 patients presenting 202 dental implants in the maxillary posterior region were retrospectively assessed in cone-beam computed tomography scans and classified according to maxillary sinus perforation, bone graft, mucosal thickening, and mucosal appearance. Logistic regression determined the chance of mucosal thickening in perforated maxillary sinuses. The chi-square test compared categorical variables between maxillary sinus perforated or not by implants and maxillary sinus with or without mucosal thickening. The significance level assumed was 5 % (α = 0.05).
There was perforation of 60 maxillary sinuses floor (46.5 %) by 74 dental implants. The chance of mucosal thickening was higher when the implant tip was trespassing on the maxillary sinus floor (p < 0.001). There was a significant association between maxillary sinus mucosal thickening and perforation by a dental implant with the tip trespassing the maxillary sinus floor (p < 0.05).
Maxillary sinus mucosal thickening is associated with sinus floor perforation by dental implants and does not depend on the number of implants perforating it.
There is an association between dental implants\' perforation of the maxillary sinus floor and the thickening of the maxillary sinus. In those cases, the appearance of the mucosa thickening may be irregular, local, or total opacification of the sinus cavity.
One-hundred and twenty-nine maxillary sinuses of 93 patients presenting 202 dental implants in the maxillary posterior region were retrospectively assessed in cone-beam computed tomography scans and classified according to maxillary sinus perforation, bone graft, mucosal thickening, and mucosal appearance. Logistic regression determined the chance of mucosal thickening in perforated maxillary sinuses. The chi-square test compared categorical variables between maxillary sinus perforated or not by implants and maxillary sinus with or without mucosal thickening. The significance level assumed was 5 % (α = 0.05).
There was perforation of 60 maxillary sinuses floor (46.5 %) by 74 dental implants. The chance of mucosal thickening was higher when the implant tip was trespassing on the maxillary sinus floor (p < 0.001). There was a significant association between maxillary sinus mucosal thickening and perforation by a dental implant with the tip trespassing the maxillary sinus floor (p < 0.05).
Maxillary sinus mucosal thickening is associated with sinus floor perforation by dental implants and does not depend on the number of implants perforating it.
There is an association between dental implants\' perforation of the maxillary sinus floor and the thickening of the maxillary sinus. In those cases, the appearance of the mucosa thickening may be irregular, local, or total opacification of the sinus cavity.
摘要：
目的：探讨种植牙上颌窦底穿孔与粘膜增厚的关系，并描述其在穿孔病例中的特点。
方法：在锥形束计算机断层扫描中回顾性评估了93例上颌后区种植202次牙的患者的一百二十九个上颌窦，并根据上颌窦穿孔进行分类。植骨,粘膜增厚，和粘膜外观。Logistic回归确定上颌窦穿孔粘膜增厚的机会。卡方检验比较了上颌窦是否通过植入物穿孔和上颌窦有无粘膜增厚之间的分类变量。假定的显著性水平为5%(α=0.05)。
结果：74种牙种植体上颌窦底穿孔60例（46.5%）。当植入物尖端侵入上颌窦底部时，粘膜增厚的机会更高（p<0.001）。上颌窦粘膜增厚和牙种植体穿孔与上颌窦底的尖端之间存在显着关联（p<0.05）。
结论：上颌窦粘膜增厚与牙种植体的窦底穿孔有关，并不取决于种植体的穿孔数量。
结论：上颌窦底牙种植体穿孔与上颌窦增厚之间存在关联。在这些情况下,粘膜增厚的外观可能是不规则的，当地,或窦腔完全混浊。
方法：在锥形束计算机断层扫描中回顾性评估了93例上颌后区种植202次牙的患者的一百二十九个上颌窦，并根据上颌窦穿孔进行分类。植骨,粘膜增厚，和粘膜外观。Logistic回归确定上颌窦穿孔粘膜增厚的机会。卡方检验比较了上颌窦是否通过植入物穿孔和上颌窦有无粘膜增厚之间的分类变量。假定的显著性水平为5%(α=0.05)。
结果：74种牙种植体上颌窦底穿孔60例（46.5%）。当植入物尖端侵入上颌窦底部时，粘膜增厚的机会更高（p<0.001）。上颌窦粘膜增厚和牙种植体穿孔与上颌窦底的尖端之间存在显着关联（p<0.05）。
结论：上颌窦粘膜增厚与牙种植体的窦底穿孔有关，并不取决于种植体的穿孔数量。
结论：上颌窦底牙种植体穿孔与上颌窦增厚之间存在关联。在这些情况下,粘膜增厚的外观可能是不规则的，当地,或窦腔完全混浊。
