Rizk Omar, Ashraf Sherif, Zaki Ahmed Hany, AbdelMohsen Karim Mohamed
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.
J Craniofac Surg. 2025 Jun 1;36(4):e441-e446. doi: 10.1097/SCS.0000000000011013. Epub 2024 Dec 19.
Because of the fact that sufficient alveolar ridge bone is essential for the success of implant placement, the authors often face a challenge with augmenting residual maxillary alveolar ridges. The aim of the study was to compare the amount of ridge gain by the Osseodensification method with the manual bone expanders method for healed edentulous sites in the maxilla at different time intervals (immdiate postoperative and 6 mo postoperative). Two groups were equally and randomly divided with a total of 14 implants (Biohorizons) placed in the maxillary arch for 8 patients, osseodensification was used for 1 group (group 1), whereas manual threaded expanders (bone spreaders) was used for the other group (group 2). Results suggest that the expanders group (group 2) yielded greater immediate postoperative expansion at some points along the length of placed implants; however, most of the expansion gain at the immediate Post-operative stage underwent continuous remodeling 6 months postoperative. The authors recommend using expansion techniques only when other more predictable techniques for horizontal bone augmentation are not feasible.
由于充足的牙槽嵴骨对于种植体植入的成功至关重要，作者们在增加上颌剩余牙槽嵴方面常常面临挑战。本研究的目的是比较骨致密化方法与手动骨扩张器方法在不同时间间隔（术后即刻和术后6个月）对上颌无牙区愈合部位牙槽嵴增加量的影响。将两组患者平均随机分组，共为8例患者在上颌弓植入14枚种植体（Biohorizons），一组（第1组）采用骨致密化方法，另一组（第2组）采用手动螺纹扩张器（骨撑开器）。结果表明，扩张器组（第2组）在植入种植体长度的某些点上术后即刻扩张更大；然而，术后即刻阶段的大部分扩张增益在术后6个月经历了持续重塑。作者建议仅在其他更可预测的水平骨增量技术不可行时才使用扩张技术。
