Li X, Xu P, Xu X, Liu S
Department of Oral Implantation, Affiliated Haikou Hospital, Xiangya Medical School, Central South University, Hainan Provincial Stomatology Centre, Haikou, China.
Department of Oral Implantation, Affiliated Haikou Hospital, Xiangya Medical School, Central South University, Hainan Provincial Stomatology Centre, Haikou, China.
Int J Oral Maxillofac Surg. 2017 Nov;46(11):1451-1457. doi: 10.1016/j.ijom.2017.05.025. Epub 2017 Jun 26.
The aim of this study was to evaluate the application of delayed expansion of the alveolar ridge in dental implantation. This method avoids the need to harvest autogenous bone and the requirement to fix a block with screws, and could help prevent the uncontrolled fracture and avascular necrosis that may result from the traditional alveolar split. Eighteen patients and 43 implants were included in this retrospective study. The width of the alveolar ridge was measured before implantation, immediately after implantation, and after the final restoration. The width increased significantly after the insertion of implants and decreased slightly after bone remodelling. Overall, the width of the alveolar ridge increased by 2.37±1.44mm on average, ranging from -0.20mm to 5.75mm. The results suggest the use of delayed expansion for horizontal alveolar bone augmentation; however, the maxillary premolar area may not be a suitable site.
本研究的目的是评估牙槽嵴延迟扩展在牙种植中的应用。该方法避免了自体骨采集的需要以及用螺钉固定骨块的要求，并且有助于防止传统牙槽嵴劈开可能导致的不受控制的骨折和无血管性坏死。本回顾性研究纳入了18例患者和43颗种植体。在种植前、种植后即刻以及最终修复后测量牙槽嵴的宽度。种植体植入后宽度显著增加，骨重塑后略有下降。总体而言，牙槽嵴宽度平均增加2.37±1.44mm，范围为-0.20mm至5.75mm。结果表明延迟扩展可用于水平牙槽骨增量；然而，上颌前磨牙区可能不是合适的部位。
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