Biomechanical comparison of biomimetically and electrochemically deposited hydroxyapatite-coated porous titanium implants

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
Guo-Li YangShi-Fang Zhao

Abstract

The purpose of this study was to investigate the effects of biomimetically and electrochemically deposited hydroxyapatite on the fixation of an implant with bone tissue. Implants were separated into 3 groups: roughened group, biomimetically deposited calcium-phosphorus (BDCaP) group, and electrochemically deposited hydroxyapatite (EDHA) group. We randomly inserted 90 implants into the femurs of 45 rabbits. After 2, 4, and 8 weeks, the femurs were retrieved and prepared for removal torque tests (RTQs) and field-emission scanning electron microscopy observation. During the test period, the EDHA group showed significantly greater RTQ values than did the roughened group and BDCaP group. The BDCaP group failed to increase the RTQ values compared with the roughened group. Field-emission scanning electron microscopy observation showed that the amount of attached bone tissue on the EDHA-coated implant surface was more than that on the roughened and BDCaP-coated implant surfaces during the test period. The electrochemical hydroxyapatite coating contributes to the fixation between bone and implant compared with the roughened surface, whereas the biomimetic calcium-phosphorus coating has little effect on the fixation.

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Citations

Feb 10, 2016·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Alexander Bral, Maurice Y Mommaerts
Mar 16, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Matthew S BryingtonRyo Jimbo
Jun 29, 2015·Materials Science & Engineering. C, Materials for Biological Applications·Sergey V Dorozhkin
Jun 30, 2011·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Alexander V ZavgorodniyRamin Rohanizadeh
Jul 25, 2012·Journal of Biomedical Materials Research. Part a·Chye Khoon PohWilson Wang
Mar 1, 2012·Journal of Biomedical Materials Research. Part a·Fan YangGuoli Yang
Jun 5, 2013·Journal of Zhejiang University. Science. B·Shi-fang ZhaoGuo-li Yang
Nov 2, 2011·Acta Biomaterialia·Shaylin Shadanbaz, George J Dias
Jul 31, 2012·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Jue ShiGuo-Li Yang
Apr 22, 2015·BioMed Research International·Wen FangGuoli Yang
Jun 9, 2012·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Fan YangGuo-li Yang
Jun 7, 2012·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Zhipeng ChengGui-li Yang
Jan 29, 2011·Brazilian Dental Journal·Arthur Belém NovaesAdriano Piattelli
Dec 8, 2011·Clinical Oral Implants Research·Shi-fang ZhaoFu-ming He
May 18, 2021·Journal of Materials Science. Materials in Medicine·F FlorianJ A Cirelli

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