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International Journal of Bioprinting 3D printing of costal cartilage models

Table 1. Subjective evaluation of experiences with costal cartilage models made by 3DP materials
Costal cartilage 65 A 75 A 85 A
Hardness 5 4.77 ± 0.44 4.92 ± 0.28 4.85 ± 0.38
Elasticity 5 4.85 ± 0.38 4.85 ± 0.38 4.77 ± 0.44
Stickiness experienced during engraving 5 4.85 ± 0.38 4.77 ± 0.44 4.69 ± 0.48
Suture ability 5 4.92 ± 0.28 4.85 ± 0.38 4.38 ± 0.77
Overall satisfaction with the formed framework 5 4.92 ± 0.28 4.77 ± 0.44 4.62 ± 0.51
Total score 25 24.31 ± 1.03 24.1 ± 0.99 23.31 ± 1.18
Data are expressed as mean ± standard deviation.
Notes: 5, the same as costal cartilage; 1, sharply different from costal cartilage.

Figure 3. Mechanical properties of native cartilage (NC) and silicone materials. (A) Photographs of the compression test for the silicone materials.
(B) Stress‒strain results of the compression test. (C) Photographs of the tensile test for the silicone materials. (D) Stress‒strain results of the tension test.
Young’s modulus (E), suture retention strength (F), and Shore hardness (G) of different silicone materials and native cartilage.
Notes: ns, no significant difference; *p < 0.05; **p < 0.01

Volume 10 Issue 1 (2024) 219 https://doi.org/10.36922/ijb.1007