Cardaropoli Daniele, Tamagnone Lorenzo, Roffredo Alessandro, Gaveglio Lorena
Int J Periodontics Restorative Dent. 2014 Mar-Apr;34(2):211-7. doi: 10.11607/prd.1885.
In 48 postextraction sites, sockets were grafted with bovine bone mineral plus collagen membrane (test) or had spontaneous healing (control). After 4 months, horizontal ridge width reduction was 0.71 mm in the test group and 4.04 mm in the control group, while vertical ridge loss was 0.58 mm and 1.67 mm, respectively. No correlation was found between the thickness of the buccal bone wall and the alveolar bone loss in the test group, while an inverse correlation was found in the control group. Ridge preservation compensated for postextraction alveolar ridge resorption irrespective of the buccal plate thickness, whereas leaving the extraction socket undisturbed may result in alveolar bone loss.
在48个拔牙位点，拔牙窝分别采用牛骨矿物质加胶原膜移植（试验组）或自然愈合（对照组）。4个月后，试验组水平牙槽嵴宽度减少0.71mm，对照组减少4.04mm，而垂直牙槽嵴吸收分别为0.58mm和1.67mm。试验组颊侧骨壁厚度与牙槽骨吸收之间未发现相关性，而对照组发现呈负相关。无论颊侧骨板厚度如何，牙槽嵴保存均能补偿拔牙后牙槽嵴吸收，而不干扰拔牙窝可能导致牙槽骨吸收。
