Jahan Shabnam, Kaushik Mayur, Wadhawan Amit
Department of Periodontology, Subharti Dental College, Meerut, Uttar Pradesh, India.
Contemp Clin Dent. 2019 Apr-Jun;10(2):208-213. doi: 10.4103/ccd.ccd_340_18.
The requisites to long-term success of dental implant are good-quality bone and healthy gingiva. Long-term risk with regard to dental implant is crestal bone loss. The cause of this crestal bone loss is inflammation of surrounding soft tissue and bone. One of the techniques used to prevent crestal bone loss includes the use of biological mediators. Bisphosphonates are antiresorptive drugs that act on osteoclasts and maintain bone density and strength by inhibiting osteoclast activity.
16 systemically healthy patients aged between 20 and 50 years desirous of replacing single missing posterior tooth with an adequate width and height of edentulous space included in the study. 8 patients were treated with application of bisphosphonate on implant surface and osteotomy site and 8 patients were treated only with implant therapy.
Crestal bone level changes were observed both in the study and control group. At 12 months, bisphosphonate-treated group showed less amount of crestal bone loss than control group.
Local application of bisphosphonate (sodium alendronate) application around the implant and osteotomy site shows reduction in the amount of crestal bone loss but it is not statistically significant when compared with control group.
牙种植长期成功的必要条件是高质量的骨组织和健康的牙龈。牙种植的长期风险是牙槽嵴骨吸收。这种牙槽嵴骨吸收的原因是周围软组织和骨组织的炎症。用于预防牙槽嵴骨吸收的技术之一包括使用生物介质。双膦酸盐是作用于破骨细胞的抗吸收药物,通过抑制破骨细胞活性来维持骨密度和强度。
本研究纳入16例20至50岁全身健康、希望用宽度和高度合适的无牙间隙替代单个后牙缺失的患者。8例患者在种植体表面和截骨部位应用双膦酸盐进行治疗,8例患者仅接受种植治疗。
研究组和对照组均观察到牙槽嵴骨水平变化。在12个月时,双膦酸盐治疗组的牙槽嵴骨吸收量低于对照组。
在种植体和截骨部位周围局部应用双膦酸盐(阿仑膦酸钠)可减少牙槽嵴骨吸收量,但与对照组相比无统计学意义。