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Volume 20 , Issue 1
January/February 2005

Pages 31–38


The Effects of Ion Beam–Assisted Deposition of Hydroxyapatite on the Grit-blasted Surface of Endosseous Implants in Rabbit Tibiae

Young-Seok Park, DDS, MSD/Ki-Young Yi, DDS/In-Seop Lee, PhD/Chong-Hyun Han, DDS, MSD, PhD/Young-Chul Jung,DDS,MSD,PhD


PMID: 15747671

Purpose: This study was undertaken to evaluate ion beam–assisted deposition (IBAD) of hydroxyapatite (HA) on the grit-blasted surface of endosseous dental implants 6 weeks postplacement. Materials and Methods: A total of 40 implants was placed in the tibiae of 10 New Zealand white rabbits. Twenty implants were grit-blasted only and the other 20 were grit-blasted and coated with HA by the IBAD method. After 6 weeks of healing, the rabbits were sacrificed and removal torque tests, histomorphometry, and morphometric analysis of microtomographic images were performed. Results: The HA-coated group showed significantly higher removal torque, bone-to-implant contact, and bone volume than the other group. Discussion and Conclusion: In a previous study, the authors suggested that HA coating deposited on a machined surface by the IBAD method showed results comparable to or more favorable than the results obtained with a blasted surface. This study indicated that the HA coating produced by the IBAD method was also very effective on the aluminum oxide–blasted surface, as demonstrated by the early formation of osseointegration. Morphometric analysis by microtomography showed some promise in measuring the osseointegration rate. (More than 50 references.) Int J Oral Maxillofac Implants 2005;20:31–38


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