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http://dx.doi.org/10.4047/jap.2010.2.4.142

A histomorphometric study of dental implants with different surface characteristics  

Pak, Hyun-Soon (Department of Prosthodontics, Graduate School, Seoul National University)
Yeo, In-Sung (Department of Prosthodontics, Graduate School, Seoul National University)
Yang, Jae-Ho (Department of Prosthodontics, Graduate School, Seoul National University)
Publication Information
The Journal of Advanced Prosthodontics / v.2, no.4, 2010 , pp. 142-147 More about this Journal
Abstract
PURPOSE. One of the major keys to achieve successful osseointegration of the implant is its surface properties. The aim of this study was to investigate the bone response to dental implants with different surface characteristics using the rabbit tibia model. Tricalcium phosphate (TCP) coated, anodic oxidized and turned (control) surfaces were compared. MATERIALS AND METHODS. Seventy two implants were placed in the tibia of eighteen rabbits. Nine rabbits were sacrificed at 3 weeks of healing and the remaining nine were sacrificed at 6 weeks of healing. The bone-to-implant contact (BIC) and the bone volume density (BVD) were assessed by light microscope after 3 and 6 weeks of healing. RESULTS. Statistical analysis showed that no significant differences in the BIC and BVD were observed between the different implant surfaces and the control group at 3 weeks and 6 weeks of healing. Data also suggested that the BVD of all the surfaces showed significant difference at 3 and 6 weeks. CONCLUSION. The present study has showed that osseointegration occurred in all investigated types of surface-treated implants. In the current study all of the threads of the implants were observed to calculate BIC and BVD values (instead of choosing some of the threads from the bone cortex for example), which didn't make BIC or BVD percentage values better than in the control group, therefore the clinical relevance of these results remains to be shown.
Keywords
Surface modification; Bone-to-implant contact; Bone volume density; Tricalcium phosphate coating; Anodic oxidation;
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