即刻种植后植骨与否对骨结合影响的动物实验研究

发布时间：2018-03-29 19:00

本文选题：牙种植体　切入点：骨结合　出处：《实用口腔医学杂志》2014年04期

【摘要】：目的:评价即刻种植后植骨与否对种植体周围骨缺损愈合情况及种植体周围骨结合的影响。方法:拔除6只Beagle犬双侧下颌第一至第四前磨牙,近中根拔牙窝的近中壁制备(3~4)mm×(3~4)mm×(5~6)mm的骨缺损间隙,采用半口自身对照,一侧行不植骨即刻种植(A组),另一侧即刻种植并在缺损中植入Bio-Oss骨粉(B组),术后3个月处死动物,大体观察种植体周围骨缺损愈合情况及组织学观察种植体-骨结合率和新骨生成率。结果:种植术区软组织愈合良好,种植体无松动脱落,2组骨缺损区均已被新生骨充填,2组种植体周的骨结合率和新骨生成率无统计学差异。结论:即刻种植时伴有一定程度牙槽窝壁骨缺损,不植入骨粉情况下新生骨与种植体间也可以获得良好的骨结合。
[Abstract]:Objective: to evaluate the effect of immediate implant grafting on the healing of peri-implant bone defects and bone bonding around implants. Methods: the first to fourth mandibular premolars were extracted from 6 Beagle dogs. The proximal middle wall of the proximal middle root extraction fossa was used to prepare a bone defect space of 4mm ~ 4mm 脳 5 ~ (-5) mm 脳 5 ~ (-6) mm. The animals were killed 3 months after operation. The right side of the bone was implanted immediately without bone graft in group A, and the other side was immediately implanted with Bio-Oss bone powder in the defect group B, and the animals were killed 3 months after operation. Gross observation of bone defect healing around implant and histological observation of implant bone bonding rate and new bone formation rate. Results: the soft tissue healed well in implant area. There was no significant difference in bone binding rate and new bone formation rate between the two groups. Conclusion: there is a certain degree of alveolar fossa bone defect in the immediate implantation. Good bone bonding can also be achieved between the new bone and the implant without bone powder implantation.
【作者单位】：烟台市口腔医院口腔种植科;
【基金】：烟台市科技局基金(编号:2009150)
【分类号】：R783.6

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