Kim Kang-Min, Choi Soo-Young, Park Jung-Hyun, Kim Heon-Young, Kim Sun-Jong, Kim Jin-Woo
Department of Oral and Maxillofacial Surgery, Mok-dong Hospital, School of Medicine, Ewha Womans University, Seoul, Korea.
Department of Oral and Maxillofacial Surgery, Department of Oral and Maxillofacial Surgery, Seoul Hospital, School of Medicine, Ewha Womans University, Seoul, Korea.
Maxillofac Plast Reconstr Surg. 2023 Apr 23;45(1):16. doi: 10.1186/s40902-023-00384-8.
Resorption of alveolar bone is a common sequela of tooth loss and presents a clinical problem, especially in the esthetic zone. When ridge resorption occurs, adequate bone augmentation is essential to obtain satisfactory esthetic results. The purpose of this study was to determine the increase and retention rate of bone height or width in patients who received extensive bone augmentation and to analyze factors affecting its prognosis and stability.
This study was performed on patients who received extensive bone augmentation by sausage technique at the Department of Oral and Maxillofacial Surgery at Ewha Womans University Mok-dong Hospital from January 1, 2018, to February 28, 2022. CBCT images were taken before and 6 months after surgery to compare the amount of increase in bone height or width at the graft site. They were measured using reliable points such as adjacent implants or cephalometric landmarks, inferior alveolar nerve canals as reference points.
A total of 8 patients underwent extensive bone grafting during the given period (mean age was 53.75 years, 2 males and 6 females). Four patients received horizontal augmentation, and 4 received vertical augmentation. When divided by surgical site, 4 patients are in maxilla and 4 in mandible. The average amount of increase in bone width or bone height was 5.38 mm, and the retention rate was about 79.9% after 6 months. The retention rate of horizontal augmentation was 88.8%, which was higher than that of vertical augmentation, which was 74.5%. The maxillary area accounted for 92.2%, and the amount of bone resorption was lower than that of the mandibular area, which was 72.6%. The average stitch out period was about 2.4 weeks, and postoperative dehiscence was observed about 37.5% of the total, more frequently in the mandible (50.0%) than in the maxilla (25.0%).
In conclusion, extensive bone augmentation achieved significant horizontal or vertical bone height or width increase, and the retention rate after 6 months was also high. In addition, surgery in the maxillary region showed a more successful bone augmentation than in the mandible, with a higher maintenance rate and fewer cases of dehiscence.
牙槽骨吸收是牙齿缺失后的常见后遗症，也是一个临床问题，尤其是在美学区域。当牙槽嵴吸收发生时，充分的骨增量对于获得满意的美学效果至关重要。本研究的目的是确定接受广泛骨增量治疗的患者骨高度或宽度的增加及保留率，并分析影响其预后和稳定性的因素。
本研究对2018年1月1日至2022年2月28日在梨花女子大学木洞医院口腔颌面外科接受香肠技术广泛骨增量治疗的患者进行。在手术前和术后6个月拍摄CBCT图像，以比较植骨部位骨高度或宽度的增加量。使用可靠的点进行测量，如相邻种植体或头影测量标志点、下牙槽神经管作为参考点。
在给定期间，共有8例患者接受了广泛的骨移植（平均年龄53.75岁，男性2例，女性6例）。4例患者接受水平骨增量，4例接受垂直骨增量。按手术部位划分，4例患者在上颌，4例在下颌。骨宽度或骨高度的平均增加量为5.38mm，6个月后的保留率约为79.9%。水平骨增量的保留率为88.8%，高于垂直骨增量的74.5%。上颌区域占92.2%，骨吸收量低于下颌区域的72.6%。平均拆线期约为2.4周，术后裂开发生率约占总数的37.5%，下颌（50.0%）比上颌（25.0%）更常见。
总之，广泛的骨增量实现了显著的水平或垂直骨高度或宽度增加，6个月后的保留率也很高。此外，上颌区域的手术比下颌区域的骨增量更成功，维持率更高，裂开病例更少。
