摘要
目的应用胶原骨行引导性骨再生手术,对比手术后拔牙创愈合情况及术前、术后1、4个月牙槽骨密度的变化。方法对慢性牙周炎需要进行位点保存手术的患者15例(共21颗患牙),通过临床检查比较拔牙创愈合情况,利用PLANMECA数字化曲面体层机软件分析系统对牙槽嵴顶以及牙冠部分的灰度值进行测量,采用单因素方差分析对比手术前后牙槽骨密度的改变量。结果术前、术后1个月、术后4个月三组的牙槽嵴骨密度值各为0.35±0.06、0.43±0.03、0.54±0.04,两两比较均有统计学意义(P<0.01)。结论应用胶原骨进行引导性骨再生手术术后牙槽骨密度较术前明显增加,能为Ⅱ期早期种植及最终的美学修复创造有利条件。
Objective To explore wound healing status after the guided bone regenerationsurgery using bone collagen and to compare changes of alveolar bone density before the surgery,1 month and 4 months after the surgery. Methods 21 teeth from 15 chronic periodontitis patients（6 males,9 females） with bone defects requiring prevention of alveolar bone absorption were selected in this research.Physical examination was used to examine the healing status after teeth extraction. The grey values of alveolar crests and dental crowns were measured with PLANMECA digital panorama tomograph. One-way analysis of variance was used to compare the preoperative and postoperative changes of the grey values. Results The grey values of the alveolar crests and dental crowns before the surgery,1 and 4months after the surgery were 0. 35 ± 0. 06,0. 43 ± 0. 03,and 0. 54 ± 0. 04,respectively. There were statistical differences between groups（P 0. 01）. Conclusions Guided bone regeneration with bone collagen is a simple and practical method for bone augmentation,which can significantly improve the alveolar bone condition. Besides,it can provide favorable conditions for stage IIpre-prosthetic treatment and aesthetic restorations.
出处
《口腔医学》
CAS
2015年第4期270-273,共4页
Stomatology
基金
辽宁省科学计划项目(2009412001-8)
关键词
数字化曲面体层机
引导性骨再生手术
骨密度
digital panoramic tomograph
guided bone regeneration surgery
bone density
