Volume 21 Issue 2
Feb.  2023
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Article Navigation >  Chinese Journal of General Practice  > 2023  >  21(2): 213-216
DILINUER·Maimaitishawuti, MIREZHATI·Tailaiti, ZHOU Qi-qi, HE Hui-yu. Effect of adding different amounts of sericin powder on the surface hydrophilicity and mechanical properties of denture base[J]. Chinese Journal of General Practice, 2023, 21(2): 213-216. doi: 10.16766/j.cnki.issn.1674-4152.002848
Citation: DILINUER·Maimaitishawuti, MIREZHATI·Tailaiti, ZHOU Qi-qi, HE Hui-yu. Effect of adding different amounts of sericin powder on the surface hydrophilicity and mechanical properties of denture base[J]. Chinese Journal of General Practice, 2023, 21(2): 213-216. doi: 10.16766/j.cnki.issn.1674-4152.002848
shu

Effect of adding different amounts of sericin powder on the surface hydrophilicity and mechanical properties of denture base

doi: 10.16766/j.cnki.issn.1674-4152.002848
  • 1.

    Department of Prosthodontics and Implantology, the First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatological Hospital), Urumqi, Xinjiang 830054, China

Funds:

 2017D01C338

  • Received Date: 2022-02-23
    Available Online: 2023-04-20
    Abstract
  •   Objective  The hydrophilic and mechanical properties of the denture base material will affect the repair effect of the denture base. This study mainly investigates the influence of adding different amounts of silk glue powder on the hydrophilic and mechanical properties of the denture base resin surface.  Methods  Powders and monomers were prepared into 4 combinations: D-300-MMA (Group A), D-250ML-iBMA (Group B), D-100M-EHMA+HEMA (Group C) and D-250E-EHMA+MMA (Group D). Each group was added with different amounts of sericin powder (0%, 1%, 3%, 5%) to obtain 16 kinds of materials. The surface contact angle of the material soaked for 0, 60, 120, 240, 300 and 360 d was measured, and flexural resistance and elastic modulus were calculated.  Results  (1) Statistically significant differences were found in the contact angle, flexural strength and elastic modulus of samples in each group added with different amounts of sericin powder (P < 0.05). (2) The contact angle of the samples without 3% sericin powder in each group was higher than that of the samples added with 3% sericin powder (P < 0.05). The contact angle of the samples in each group added with 3% sericin powder immersed for 180-360 d showed a decreasing trend. The contact angle of group C soaked for 360 d and added with 3% sericin powder was the lowest (58.31°±5.42°). (3) Among the samples without sericin powder, the flexural strength of group A was higher than that of the three other groups (P < 0.05). The flexural strengths of the samples in groups A and D added with 3% sericin powder soaked for 360 days were higher, with values of (122.31±9.73) and (117.47±8.99) MPa, respectively. (4) The elastic modulus of the samples added with 1%, 3% and 5% sericin powder in group B was higher than that of the samples without the powder (P < 0.05). The samples with 5% sericin powder added in group A, 1% sericin powder in group B and 3% sericin powder in group D had higher elastic moduli.  Conclusion  Adding different amounts of sericin powder can increase the hydrophilicity of the denture base surface, however, the flexural strength and elastic modulus will also be affected to a certain extent.

     

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