两种材料在前牙区拔牙位点保存的动物实验分析

发布时间：2018-05-11 15:35

本文选题：位点保存 + 骨诱导活性材料　；参考：《实用医学杂志》2014年08期

【摘要】：目的:比较两种材料在犬前牙区拔牙位点的引导新骨形成作用。方法:选取6只12月龄雄性Beagle犬,将其随机分为A、B、C三组,微创拔除实验犬下颌双侧第一侧切牙,A组犬填入羟基磷灰石生物陶瓷(天博),B组填入骨诱导活性材料(osteoinduction active material,OAM),C组空置(对照)。三组实验犬在1个月末各处死1只,在3个月末各处死1只。取实验样本,进行标本测量,利用CBCT分析进行骨形成密度的评估。结果:所有位点骨量均有不同程度的吸收。OAM组与天博组牙槽嵴宽度平均骨量吸收程度低于对照组(P0.05),OAM组平均骨量吸收程度低于天博组(P0.05);牙槽嵴高度丧失OAM与天博均低于对照组(P0.05),但OAM与天博间差异无统计学意义(P0.05);CT值比较结果可见愈合后期OAM吸收快于天博(P0.05)。结论:OAM具有良好的位点保存效果。
[Abstract]:Objective: to compare the effect of two materials in guiding new bone formation in canine anterior tooth extraction site. Methods: six 12-month-old male Beagle dogs were randomly divided into three groups. In group A, hydroxyapatite bioceramics were implanted into the bilateral first incisor of the mandible. Three groups of dogs died one at the end of one month and one at the end of three. Specimens were measured and bone formation density was evaluated by CBCT analysis. Results: bone mass of all sites was absorbed in varying degrees. The average bone resorption degree of alveolar ridge width in Oam group and Tianbo group was lower than that in control group (P 0.05), and the average bone resorption degree in Oam group was lower than that in Tianbo group (P 0.05), and the loss of OAM and Tianbo average in alveolar crest height was lower in Oam group than in control group (P 0.05). It was lower than the control group (P 0.05), but the difference between OAM and Tianbo was not statistically significant. The results showed that the OAM absorption was faster in the late healing stage than that in the Tianbo group. Conclusion: OAM has good site preservation effect.
【作者单位】：新疆医科大学第二附属医院口腔科;
【基金】：新疆维吾尔自治区自然科学基金(编号:2012211A029)
【分类号】：R783.1

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