Biomimetic Octacalcium Phosphate Bone Has Superior Bone Regeneration Ability Compared to Xenogeneic or Synthetic Bone

被引:12
|
作者
Kim, Jooseong [1 ]
Kim, Sukyoung [2 ]
Song, Inhwan [3 ]
机构
[1] Yeungnam Univ, Dept Biomed Engn, 170 Hyeonchung Ro, Daegu 42415, South Korea
[2] Yeungnam Univ, Sch Mat Sci & Engn, 280 Daehak Ro, Gyongsan 38541, South Korea
[3] Yeungnam Univ, Coll Med, Dept Anat, 170 Hyeonchung Ro, Daegu 42415, South Korea
基金
新加坡国家研究基金会;
关键词
octacalcium phosphate (OCP); hydroxyapatite (HA); biphasic calcium phosphate (BCP); xenogenic bone; synthetic bone; bone regeneration; phase conversion; mineralization; BETA-TRICALCIUM PHOSPHATE; CALCIUM; HYDROXYAPATITE; RESORPTION; TISSUE; BIOMATERIALS; IMPLANTS; MARROW;
D O I
10.3390/ma14185300
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Octacalcium phosphate (OCP) is a precursor of biological apatite crystals that has attracted attention as a possible bone substitute. On the other hand, few studies have examined this material at the experimental level due to the limitations on OCP mass production. Recently, mass production technology of OCP was developed, and the launch of OCP bone substitutes is occurring. In this study, the bone regeneration capacity of OCP products was compared with two of the most clinically used materials: heat-treated bovine bone (BHA) and sintered biphasic calcium phosphate (BCP). Twelve rabbits were used, and defects in each tibia were filled with OCP, BHA, BCP, and left unfilled as control (CON). The tibias were harvested at 4 and 12 weeks, and 15 mu m slides were prepared using the diamond grinding method after being embedded in resin. Histological and histomorphometric analyses were performed to evaluate the bone regeneration ability and mechanism. The OCP showed significantly higher resorption and new bone formation in both periods analysed (p < 0.05). Overall, OCP bone substitutes can enhance bone regeneration significantly by activating osteoblasts and a rapid phase transition of OCP crystals to biological apatite crystals (mineralization), as well as providing additional space for new bone formation by rapid resorption.
引用
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页数:12
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