Osseointegration of implant in fresh extraction socket with or without bone grafting:An experimental study in beagle dog

VernacularTitle:即刻种植后植骨与否对骨结合影响的动物实验研究
Author: Huijuan XIAO ; Zhonghao LIU ; Yundong YANG ; Sheng XU
Publication Type:Journal Article
Keywords: Dental implant; Osseointegration; Immediate implantation; Defect; Bone graft
From: Journal of Practical Stomatology 2014;(4):500-504
CountryChina
Language:Chinese
Abstract: Objective:To study the osseointegration of implant in fresh extraction socket with or without bone grafting.Methods:In the mandibular premolar region of 6 beagle dogs,bone defect in the size of (3~4)mm ×(3~4)mm ×(5 ~6)mm on the mesial wall of the mesial root socket was made.On control side implants were installed immediately into the extraction sockets(group A).On an-other side Bio-Oss grafts and membrane(GBR)were placed following implantation(group B).All animals were sacrificed 3 months af-ter implantation,specimens were examined for histo-morphometric analysis of bone to implant contact and new bone formation.Results:No implant was loosening in the 2 groups.New bone was filled in the bone defect areas in 2 groups.No statistical difference of the per-centage of new bone formation and bone-to-implant contact ration(BIC)was observed between 2 groups.Conclusion:With the defect in a certain size on the root socket wall osseointegration may occur between the new bone and implant without bone transplantation.