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KMID : 0355620160420060345
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Journal of Korean Association of Oral and Maxillofacial Surgeons
2016 Volume.42 No. 6 p.345 ~ p.351
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Comparative study on the osseointegration of implants in dog mandibles according to the implant surface treatment
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Yoon Wook-Jae
Kim Su-Gwan
Oh Ji-Su
You Jae-Seek
Jeong Kyung-In
Lim Seung-Cheoul
Jeong Mi-Ae
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Abstract
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Objectives: This study compared the impact of implant surface treatment on the stability and osseointegration of implants in dog mandibles.
Materials and Methods: Six adult dogs received a total of 48 implants that were prepared using four different surface treatments; resorbable blast media (RBM), hydroxyapatite (HA), hydrothermal-treated HA, and sand blasting and acid etching (SLA). Implants were installed, and dogs were separated into 2- and 4-week groups. Implant stability was evaluated via Periotest M, Osstell Mentor, and removal torque analyzers. A histomorphometric analysis was also performed.
Results: The stability evaluation showed that all groups generally had satisfactory values. The histomorphometric evaluation via a light microscope revealed that the HA surface implant group had the highest ratio of new bone formation on the entire fixture. The hydrothermal-treated HA surface implant group showed a high ratio of bone-to-implant contact in the upper half of the implant area.
Conclusion: The hydrothermal-treated HA implant improved the bone-to-implant contact ratio on the upper fixture, which increased the implant stability.
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KEYWORD
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Dental implants, Osseointegration
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