Journal of Oral Science Research

Journal of Oral Science Research ›› 2018, Vol. 34 ›› Issue (11): 1232-1234.DOI: 10.13701/j.cnki.kqyxyj.2018.11.020

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Preparation and Mechanical Properties of New Dental Composite Resin

LI Di1, LI Bao-quan1, WEI Yu-xue3, NIU Ju1, ZHAO Wen-di1, LIU Dan-dan1, NA Hui2, LIU Xiao-qiu1*   

  1. 1. Department of Rehabilitation, Stomatological Hospital, Jilin University, Changchun 130021, China;
    2. College of Chemistry, Jilin University, Changchun 130021, China;
    3. Department of Rehabilitation, International Hospital of Urumqi, Urumqi 830091, China.
  • Received:2018-04-04 Online:2018-11-28 Published:2018-11-23

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Abstract: Objective: To evaluate the effect of nanometer/micron SiO2 mixed filler on mechanical properties of a new type of dental composite resin. Methods: A new type of dental composite resin was prepared by adding nanometer/micron SiO2 mixed packing to monomer of TMBPEA. The experiment was divided into five experimental groups and one control group with Bis-GMA as the monomer, and the flexural strength and elastic modulus of each group were tested. The section morphology of samples containing SiO2 fillers were observed by SEM. Results: The mechanical properties of the samples with TMBPEA and 50% SiO2 filler were the highest. Its bending strength and elastic modulus were (96.83+0.55) MPa and (7.12±0.20) GPa, respectively. SEM results showed that the inorganic filler of the sample was dispersed uniformly in the continuous organic matrix. Conclusion: The composite resin with TMBPEA as matrix has promising application prospect.

Key words: Biphenyl, Dental composites resins, SiO2 inorganic filler, Mechanical property, Mixed system