Comparative study of the implant osseointegration rate under two load conditions
HUANG Xing-Xiang, ZHANG Yu, XIANG Mei, XIE Chang
Chinese Journal of Clinical Anatomy ›› 2014, Vol. 32 ›› Issue (6) : 694-697.
Comparative study of the implant osseointegration rate under two load conditions
Objective To compare the implant osseointegration rate under two load conditions. Methods Four premolars on one side of the mandibular of 4 Beagle dogs were removed．After 8 weeks of the healing, 4 implants were implanted in the mouth of each dog. Prosthetic abutments were installed after 10 weeks of implant surgery，which were divided into 2 groups：the mesial two ones as the control group were free of any occlusal contact, the distal two ones as the experimental group were connected in supra-occlusal contact with the opposite teeth to get the excessive load. At 8 weeks, the dogs were sacrificed and all undecalcified hard tissue sections were stained with toluidine blue to perform bone histomorphometry analysis. Results Bone histomorphometry analysis showed that after installation of prosthetic abutments for 8 weeks, the implant osseointegration rate in the experimental group and the control group were (87.71±1.77) % and (83.15±2.47) %. There was a significant difference between the two groups. Conclusion Under excessive load conditions, the implant osseointegration rate was higher.
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