Numerical Study on Effects of Different Adhesive Materials for Ceramic Restoration on Stress Distributions
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    Abstract:

    Objective To investigate the effect of different adhesive materials on all-ceramic restoration. Methods The all-ceramic restoration system model of mandibular first molar was established by spiral computed tomography (CT) scanning and computer-aided design (CAD) modeling. Four types of resin adhesive materials (Duo Cement,Lute-It,Rely-X ARC,Variolink II) used in clinics were selected, and the stress distribution was calculated using the ABAQUS software. Results The stress at the bonding interface was the highest when low filler adhesive Lute-It was used. Based on the viscoelasticity analysis, resin adhesives with a larger storage modulus and loss modulus could yield lower stress extremes. Conclusions The study suggests that high-filler type resin adhesives with a large energy storage modulus and loss modulus should be used clinically.

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LI Yalan, CHEN Guoliang, JIANG Wentao, CHEN Yu, TIAN Xiaobao, ZHOU Zhihong. Numerical Study on Effects of Different Adhesive Materials for Ceramic Restoration on Stress Distributions[J]. Journal of medical biomechanics,2018,33(3):224-228

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History
  • Received:July 19,2017
  • Revised:October 18,2017
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  • Online: June 21,2018
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