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Bio-Design and Manufacturing  2019 Vol.2 No.3 P.161-171

http://doi.org/10.1007/s42242-019-00046-7


3D printing of calcium phosphate bioceramic with tailored biodegradation rate for skull bone tissue reconstruction


Author(s):  Boqing Zhang, Huan Sun, Lina Wu, Liang Ma, Fei Xing, Qingquan Kong, Yujiang Fan, Changchun Zhou, Xingdong Zhang

Affiliation(s):  National Engineering Research Center for BiomaterialsSichuan UniversityChengduChina; more

Corresponding email(s):   liangma@zju.edu.cn, changchunzhou@scu.edu.cn

Key Words:  3D printing, Skull repair, Calcium phosphate ceramics, Tailored biodegradation rate, Bone reconstruction


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Boqing Zhang, Huan Sun, Lina Wu, Liang Ma, Fei Xing, Qingquan Kong, Yujiang Fan, Changchun Zhou, Xingdong Zhang. 3D printing of calcium phosphate bioceramic with tailored biodegradation rate for skull bone tissue reconstruction[J]. Journal of Zhejiang University Science D, 2019, 2(3): 161-171.

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journal="Journal of Zhejiang University Science D",
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A1 - Qingquan Kong
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DOI - 10.1007/s42242-019-00046-7


Abstract: 
The bone regenerative scaffold with the tailored degradation rate matching with the growth rate of the new bone is essential for adolescent bone repair. To satisfy these requirement, we proposed bone tissue scaffolds with controlled degradation rate using osteoinductive materials (Ca-P bioceramics), which is expected to present a controllable biodegradation rate for patients who need bone regeneration. Physicochemical properties, porosity, compressive strength and degradation properties of the scaffolds were studied. 3D printed Ca-P scaffold (3DS), gas foaming Ca-P scaffold (FS) and autogenous bone (AB) were used in vivo for personalized beagle skull defect repair. Histological results indicated that the 3DS was highly vascularized and well combined with surrounding tissues. FS showed obvious newly formed bone tissues. AB showed the best repair effect, but it was found that AB scaffolds were partially absorbed and degraded. This study indicated that the 3D printed Ca-P bioceramics with tailored biodegradation rate is a promising candidate for personalized skull bone tissue reconstruction.

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