Menchini-Fabris Giovanni-Battista, Toti Paolo, Covani Ugo, Crespi Giovanni, Brevi Bruno Carlo, Crespi Roberto
Int J Oral Maxillofac Implants. 2022 Sep-Oct;37(5):920-928. doi: 10.11607/jomi.9594.
To examine the short-term outcomes of maxillary sinus augmentations consisting of laterally and apically displacing the palatal wall through a transcrestal approach.
The maxillary sinus floor was fractured in its palatal aspect by allowing a displacement in the buccal and apical direction with a magnetoelectric system. A medial displacement of the alveolar crest in its palatal bony plate was performed at the same time. Crestal bone change was investigated using superimposed preoperative and postsurgical computed tomography scans. Clinical and radiologic outcomes over 1 year were evaluated.
A total of 18 implants were selected for retrospective volumetric and linear analyses. Sinus floor and alveolar bone augmentation surgery led to a significant increase in the bone volume (P = .0002) from 0.134 ± 0.060 cm to 0.639 ± 0.166 cm, with an overall gain of +0.504 ± 0.139 cm. No part of the implant apices appeared to protrude into the maxillary sinus at the 1-year follow-up. The width of the alveolar crest changed from 5.1 ± 0.5 mm to 6.5 ± 0.7 mm, with a significant increase of +1.4 ± 0.6 mm registered at 1 year. However, a marginal bone loss of 1.0 ± 0.8 mm was observed. When tooth positions were investigated, no significant differences between the two groups (premolars versus molars) were found.
Significant and effective bone gains allowed proper placement of the dental implants but with a minimal loss of peri-implant bone volume.
通过经牙槽嵴入路对上颌窦腭侧壁进行侧向和根尖向移位，以研究上颌窦提升术的短期效果。
使用磁电系统使上颌窦底在腭侧发生骨折，使其向颊侧和根尖方向移位。同时，在牙槽嵴的腭侧骨板处进行牙槽嵴的内侧移位。通过术前和术后计算机断层扫描叠加来研究牙槽嵴骨的变化。评估1年以上的临床和影像学结果。
共选择18颗种植体进行回顾性体积和线性分析。上颌窦底和牙槽骨提升手术使骨体积从0.134±0.060 cm显著增加至0.639±0.166 cm（P = .0002），总体增加了+0.504±0.139 cm。在1年随访时，种植体根尖未见突出至上颌窦内。牙槽嵴宽度从5.1±0.5 mm变为6.5±0.7 mm，1年时显著增加了+1.4±0.6 mm。然而，观察到边缘骨吸收为1.0±0.8 mm。在研究牙位时，两组（前磨牙与磨牙）之间未发现显著差异。
显著且有效的骨增量使牙种植体能够正确植入，但种植体周围骨体积损失最小。
