The Effect of Whitlockite as an Osteoconductive Synthetic Bone Substitute Material in Animal Bony Defect Model
This study aimed to evaluate the biomechanical properties in vitro and the bone regeneration of whitlockite (WH) compared with hydroxyapatite (HA) or β-tricalcium phosphate (β-TCP)-based material. We investigated the morphology and phase composition of the bone grafts using a scanning electron micro...
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2022-03-01
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| author | Jeong-Kui Ku Il-hyung Kim Jung Hee Shim Yu ha Kim Baek Hyun Kim Young-Kyun Kim Pil-Young Yun |
| author_facet | Jeong-Kui Ku Il-hyung Kim Jung Hee Shim Yu ha Kim Baek Hyun Kim Young-Kyun Kim Pil-Young Yun |
| author_sort | Jeong-Kui Ku |
| collection | DOAJ |
| description | This study aimed to evaluate the biomechanical properties in vitro and the bone regeneration of whitlockite (WH) compared with hydroxyapatite (HA) or β-tricalcium phosphate (β-TCP)-based material. We investigated the morphology and phase composition of the bone grafts using a scanning electron microscope and X-ray diffractometer patterns and tested the compressive strength. Four circular defects of 8 mm in diameter were created on the calvaria of twelve rabbits. One defect was left empty, and each of the other defects was filled with WH, HA, and β-TCP. At 4 and 8 weeks, the specimens were harvested to evaluate for the new bone formation and the remaining bone grafts. Regarding the biomechanical properties, the three grafts had a similar micropore size, and WH showed nanopores. The compressive strength of WH was higher than HA and β-TCP without statistical significance. The radiological and histomorphometric analyses demonstrated that the new bone formation was similar among the groups. The remaining bone graft of the WH group was greater than that of the HA and β-TCP groups at 4 weeks (<i>p</i> < 0.05), and the total bone area of the WH, HA, and β-TCP groups was greater than that of the other (<i>p</i> < 0.01). WH has excellent volumetric stability and osteoconductivity compared with HA and β-TCP. |
| first_indexed | 2024-03-09T20:31:48Z |
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| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T20:31:48Z |
| publishDate | 2022-03-01 |
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| spelling | doaj.art-25bb8a9ff391439d99c107b0ca5caddf2023-11-23T23:20:57ZengMDPI AGMaterials1996-19442022-03-01155192110.3390/ma15051921The Effect of Whitlockite as an Osteoconductive Synthetic Bone Substitute Material in Animal Bony Defect ModelJeong-Kui Ku0Il-hyung Kim1Jung Hee Shim2Yu ha Kim3Baek Hyun Kim4Young-Kyun Kim5Pil-Young Yun6Department of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University Health System, Seoul 06273, KoreaDepartment of Oral and Maxillofacial Surgery, Armed Forces Capital Hospital, Armed Forces Medical Command, Seongnam-si 13574, KoreaR&D Center, OSFIRM Co., Ltd., Seongnam-si 13605, KoreaR&D Center, OSFIRM Co., Ltd., Seongnam-si 13605, KoreaR&D Center, OSFIRM Co., Ltd., Seongnam-si 13605, KoreaDepartment of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam-si 13620, KoreaDepartment of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam-si 13620, KoreaThis study aimed to evaluate the biomechanical properties in vitro and the bone regeneration of whitlockite (WH) compared with hydroxyapatite (HA) or β-tricalcium phosphate (β-TCP)-based material. We investigated the morphology and phase composition of the bone grafts using a scanning electron microscope and X-ray diffractometer patterns and tested the compressive strength. Four circular defects of 8 mm in diameter were created on the calvaria of twelve rabbits. One defect was left empty, and each of the other defects was filled with WH, HA, and β-TCP. At 4 and 8 weeks, the specimens were harvested to evaluate for the new bone formation and the remaining bone grafts. Regarding the biomechanical properties, the three grafts had a similar micropore size, and WH showed nanopores. The compressive strength of WH was higher than HA and β-TCP without statistical significance. The radiological and histomorphometric analyses demonstrated that the new bone formation was similar among the groups. The remaining bone graft of the WH group was greater than that of the HA and β-TCP groups at 4 weeks (<i>p</i> < 0.05), and the total bone area of the WH, HA, and β-TCP groups was greater than that of the other (<i>p</i> < 0.01). WH has excellent volumetric stability and osteoconductivity compared with HA and β-TCP.https://www.mdpi.com/1996-1944/15/5/1921biphasic calcium phosphatebeta-tricalcium phosphatehydroxyapatitewhitlockite |
| spellingShingle | Jeong-Kui Ku Il-hyung Kim Jung Hee Shim Yu ha Kim Baek Hyun Kim Young-Kyun Kim Pil-Young Yun The Effect of Whitlockite as an Osteoconductive Synthetic Bone Substitute Material in Animal Bony Defect Model Materials biphasic calcium phosphate beta-tricalcium phosphate hydroxyapatite whitlockite |
| title | The Effect of Whitlockite as an Osteoconductive Synthetic Bone Substitute Material in Animal Bony Defect Model |
| title_full | The Effect of Whitlockite as an Osteoconductive Synthetic Bone Substitute Material in Animal Bony Defect Model |
| title_fullStr | The Effect of Whitlockite as an Osteoconductive Synthetic Bone Substitute Material in Animal Bony Defect Model |
| title_full_unstemmed | The Effect of Whitlockite as an Osteoconductive Synthetic Bone Substitute Material in Animal Bony Defect Model |
| title_short | The Effect of Whitlockite as an Osteoconductive Synthetic Bone Substitute Material in Animal Bony Defect Model |
| title_sort | effect of whitlockite as an osteoconductive synthetic bone substitute material in animal bony defect model |
| topic | biphasic calcium phosphate beta-tricalcium phosphate hydroxyapatite whitlockite |
| url | https://www.mdpi.com/1996-1944/15/5/1921 |
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