Preparation and mechanical properties of polyetheretherketone/odontogenic biphasic bioceramic composites

doi:10.3969/j.issn.2095-4344.2015.52.010

Abstract

Abstract:

BACKGROUND: The physical properties and chemical composition of teeth are very similar with human bone tissue, and there are a larger proportion of inorganic components. Therefore, tooth can be considered as a potential repair material for autologous or allogeneic bone defects.
OBJECTIVE: To prepare polyetheretherketone/odontogenic biphasic bioceramic composite, and to test its mechanical properties.
METHODS: The human in vitro teeth of clinical waste were collected. The organic components were removed after a preliminary calcination. Another calcination was conducted after soaking in diammonium phosphate solution for 24 hours to prepare the biphasic ceramics with the main components of hydroxyapatite and β-tricalcium phosphate. The biphasic ceramics were ground and sieved using 200-mesh sieve followed by impregnation in organic foam to prepare polyetheretherketone/odontogenic biphasic bioceramics. Phase analysis, scanning electron microscopy, elemental analysis, porosity, compressive strength and bond strength test were conducted.
RESULTS AND CONCLUSION: Polyetheretherketone/odontogenic biphasic bioceramics presented porous network structure and interconnected holes, with the aperture of 100-800 μm, porosity of 73.65%, compressive strength of (165.260±11.703) N, bond strength of (14.63±6.21) MPa. P element content accounted for 19.8%, and Ca element content accounted for 40.5%. The main phases were β- tricalcium phosphate and hydroxyapatite. These results demonstrate that polyetheretherketone/odontogenic biphasic bioceramics have good mechanical properties.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

CLC Number:

R318

Leng Wei-dong, Liu Cai-yun, Huang Cui, Ai Jun, Shi Cong-yu,Yu He-dong. Preparation and mechanical properties of polyetheretherketone/odontogenic biphasic bioceramic composites[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(52): 8418-8422.

Figures/Tables 3

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