Effects of Edentulous Space on Lateral Bone Augmentation with Delayed Implantation in Aesthetics Area

doi:10.13701/j.cnki.kqyxyj.2021.07.007

Abstract

Abstract: Objective: To evaluate the effect of edentulous space on lateral bone augmentation with delayed implantation in the maxillary anterior area. Methods: A retrospective analysis was performed, and patients with consecutive missing maxillary anterior teeth who were treated in the department of implant dentistry in Yantai stomatological hospital from January 2013 to June 2019 were included. All patients were treated with lateral bone augmentation and delayed implantation. They were divided into two groups according to the edentulous space, group A with 2 missing teeth space, and group B with 3-6 missing teeth space. A 3D bone model derived from CBCT was established. The augmented bone width and volume were measured and analyzed by using Mimics. Image J software was used to measure the bone loss height around the edge of the implant in periapical radiology. Results: A total of 44 patients were included with 122 missing teeth and 94 implants, of which, 44 implants were in group A and 50 implants in group B. There was no statistically significant difference as regarding to the average augmented bone volume between groups (P>0.05). The average augmented bone width in group A was significantly smaller than that in group B (P＜0.05). Marginal bone level was significantly decreased at the follow-up time in both groups (P<0.05). No statistically significant difference was observed on marginal bone loss between groups (P>0.05). Conclusion: Delayed implantation with lateral bone augmentation in the aesthetic zone can achieve satisfactory clinical results. The missing tooth gap has no influence on the bone augmentation volume and the stability of the bone around the implant.

Key words: dental implants, bone defects, lateral bone augmentation, delayed impalntation

GUAN Qishuai, XU He, YU Tiantian, XU Sheng, ZHOU Wenjuan, LIU Zhonghao. Effects of Edentulous Space on Lateral Bone Augmentation with Delayed Implantation in Aesthetics Area[J]. Journal of Oral Science Research, 2021, 37(7): 607-611.

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