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Article

Long-Term Effect of Honeycomb β-Tricalcium Phosphate on Zygomatic Bone Regeneration in Rats

1
Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
2
Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
3
Department of Life Science, Faculty of Science, University Science, Okayama 700-0005, Japan
*
Author to whom correspondence should be addressed.
Materials 2020, 13(23), 5374; https://doi.org/10.3390/ma13235374
Received: 28 October 2020 / Revised: 20 November 2020 / Accepted: 24 November 2020 / Published: 26 November 2020
(This article belongs to the Special Issue Materials for Hard Tissue Repair and Regeneration)
In recent years, artificial bones with high biocompatibility have been developed for hard tissue reconstruction. However, current bone replacement methods are inadequate for large defects, causing infection, exposure, and damage. We have developed a new honeycomb β-tricalcium phosphate (TCP) material, which achieved good bone regeneration after implantation in a rat complete zygomatic bone defect. In this study, we further investigated the ability of honeycomb β- TCP for remodeling after bone regeneration as a long-term result. Bone morphogenic protein (BMP)-2-free honeycomb β-TCP (TCP group) and honeycomb β-TCP with BMP-2 (BMP group) were implanted in the zygomatic bone of rats. Micro-computed tomography was performed to track the zygomatic bone morphology, and specimens were histologically examined for osteogenesis and remodeling. In the TCP group, no bone formation was observed at 1 month, but it was observed at 6 months. Bone formation was observed in the BMP group at 1 month, and β-TCP absorption reproducing the zygomatic bone morphology was observed at 6 months. This honeycomb β-TCP with BMP-2 may provide appropriate remodeling that reproduces good bone formation in the early stage and good morphology in the long term, offering an alternative bone reconstruction material to vascularized bone grafts. View Full-Text
Keywords: bioceramic; bone tissue regeneration; honeycomb β-TCP; bone remodeling; reproduction of morphology bioceramic; bone tissue regeneration; honeycomb β-TCP; bone remodeling; reproduction of morphology
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MDPI and ACS Style

Nakagiri, R.; Watanabe, S.; Takabatake, K.; Tsujigiwa, H.; Watanabe, T.; Matsumoto, H.; Kimata, Y. Long-Term Effect of Honeycomb β-Tricalcium Phosphate on Zygomatic Bone Regeneration in Rats. Materials 2020, 13, 5374. https://doi.org/10.3390/ma13235374

AMA Style

Nakagiri R, Watanabe S, Takabatake K, Tsujigiwa H, Watanabe T, Matsumoto H, Kimata Y. Long-Term Effect of Honeycomb β-Tricalcium Phosphate on Zygomatic Bone Regeneration in Rats. Materials. 2020; 13(23):5374. https://doi.org/10.3390/ma13235374

Chicago/Turabian Style

Nakagiri, Ryoko, Satoko Watanabe, Kiyofumi Takabatake, Hidetsugu Tsujigiwa, Toshiyuki Watanabe, Hiroshi Matsumoto, and Yoshihiro Kimata. 2020. "Long-Term Effect of Honeycomb β-Tricalcium Phosphate on Zygomatic Bone Regeneration in Rats" Materials 13, no. 23: 5374. https://doi.org/10.3390/ma13235374

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