PMID- 24331565 OWN - NLM STAT- MEDLINE DCOM- 20140212 LR - 20131216 IS - 1531-5053 (Electronic) IS - 0278-2391 (Linking) VI - 72 IP - 1 DP - 2014 Jan TI - Hydroxyapatite and collagen combination-coated dental implants display better bone formation in the peri-implant area than the same combination plus bone morphogenetic protein-2-coated implants, hydroxyapatite only coated implants, and uncoated implants. PG - 53-60 LID - S0278-2391(13)01140-3 [pii] LID - 10.1016/j.joms.2013.08.031 [doi] AB - PURPOSE: The objective of this study was to compare peri-implant bone formation among uncoated (UC), hydroxyapatite (HA), collagen plus HA (CH), and collagen, HA, plus bone morphogenetic protein-2 (BMP-2) implant groups. MATERIALS AND METHODS: Implants in the UC group had acid-etched surfaces. The surface coating was applied using the aerosol deposition method. The coated surfaces were examined by scanning electron microscopy, x-ray diffraction (XRD), and Fourier-transformed infrared absorption analysis. Subsequently, 6 implants from each group (total, 24 implants) were installed in the tibias of rabbits. The animals were sacrificed at 6 weeks after implant installation. Peri-implant bone formation and bone-to-implant contact (BIC) were measured in histologic sections. Significant differences among groups were evaluated using analysis of variance. RESULTS: Based on the measured XRD patterns, there was a characteristic HA phase (International Centre for Diffraction Data [ICDD], 086-0740) coated on the titanium (ICDD, 089-3725). Subsequent coating processes for collagen and BMP-2 did not display additional diffraction peaks, but maintained the diffraction patterns of the HA-coated titanium. The presence of collagen was verified by infrared absorption analysis. When comparing these modifications with UC surfaces, only the CH coating displayed significantly greater peri-implant bone formation and BIC (P = .003 and P < .001, respectively). Adding BMP-2 to the implant surface did not produce any advantage compared with the CH coating. CONCLUSIONS: In this study, the CH group displayed significantly greater new bone formation and BIC than the other groups. There was no significant difference among the other groups. CI - Copyright (c) 2014 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved. FAU - Lee, Sang-Woon AU - Lee SW AD - Fellow, Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea. FAU - Hahn, Byung-Dong AU - Hahn BD AD - Researcher, Functional Materials Division, Korea Institute of Materials Science, Changwon, Korea. FAU - Kang, Tae Yeon AU - Kang TY AD - Researcher, Gangneung Center, Korea Basic Science Institute, Gangneung, Korea. FAU - Lee, Myung-Jin AU - Lee MJ AD - Researcher, Gangneung Center, Korea Basic Science Institute, Gangneung, Korea. FAU - Choi, Je-Yong AU - Choi JY AD - Professor, School of Biochemistry and Cell Biology, WCU Project, Skeletal Diseases Genome Research Center, Kyungpook National University, Daegu, Korea. FAU - Kim, Min-Keun AU - Kim MK AD - Assistant Professor, Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea. FAU - Kim, Seong-Gon AU - Kim SG AD - Associate Professor, Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea. Electronic address: epker@chol.com. LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Oral Maxillofac Surg JT - Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons JID - 8206428 RN - 0 (Aerosols) RN - 0 (BMP2 protein, human) RN - 0 (Bone Morphogenetic Protein 2) RN - 0 (Coated Materials, Biocompatible) RN - 0 (Collagen Type I) RN - 0 (Dental Implants) RN - 0 (Dental Materials) RN - 91D9GV0Z28 (Durapatite) RN - D1JT611TNE (Titanium) SB - IM MH - Acid Etching, Dental/methods MH - Aerosols MH - Animals MH - Bone Morphogenetic Protein 2/*chemistry MH - Coated Materials, Biocompatible/*chemistry MH - Collagen Type I/*chemistry MH - *Dental Implants MH - Dental Materials/chemistry MH - *Dental Prosthesis Design MH - Durapatite/*chemistry MH - Materials Testing MH - Microscopy, Electron, Scanning MH - Osseointegration/physiology MH - Osteogenesis/*physiology MH - Rabbits MH - Spectroscopy, Fourier Transform Infrared MH - Surface Properties MH - Tibia/pathology/surgery MH - Titanium/chemistry MH - X-Ray Diffraction EDAT- 2013/12/18 06:00 MHDA- 2014/02/13 06:00 CRDT- 2013/12/17 06:00 PHST- 2013/06/13 00:00 [received] PHST- 2013/07/30 00:00 [revised] PHST- 2013/08/28 00:00 [accepted] PHST- 2013/12/17 06:00 [entrez] PHST- 2013/12/18 06:00 [pubmed] PHST- 2014/02/13 06:00 [medline] AID - S0278-2391(13)01140-3 [pii] AID - 10.1016/j.joms.2013.08.031 [doi] PST - ppublish SO - J Oral Maxillofac Surg. 2014 Jan;72(1):53-60. doi: 10.1016/j.joms.2013.08.031.