Journal of Peking University (Health Sciences) ›› 2020, Vol. 52 ›› Issue (4): 790-793. doi: 10.19723/j.issn.1671-167X.2020.04.035

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  • Received:2019-10-08 Online:2020-08-18 Published:2020-08-06
  • Supported by:
    Chinese Stomatological Association Research Fund(CSA-R2018-03)

RICH HTML

  

CLC Number: 

  • R783.1

Table 1

Information of materials used in this study"

Code Name Refractive index Category Manufacture
Bis-GMA Bisphenol A glycidyl dimethacrylate 1.58 Matrix Sigma-Aldrich, St. Louis, MO, USA
TEGDMA Triethylene glycol dimethacrylate 1.46 Matrix Esstech, Essington, PA, USA
F1.6 Silanized glass particle 1.60 Filler Schott AG, Mainz, Rheinland-Pfalz, Germany
F1.8 Silanized glass particle 1.80 Filler Schott AG, Mainz, Rheinland-Pfalz, Germany
CQ Camphorquinone Photoinitiator Sigma-Aldrich, St. Louis, MO, USA
EDMAB Ethyl-4-N,N-dimethylamin-obenzoate Accelerator Esstech, Essington, PA, USA

Table 2

Refractive indexes of experimental resin composites (n=7)"

Filler proportion
(mass fraction)
Refractive index
F1.6 group F1.8 group
0 1.503 8±0.000 0Aa 1.503 8±0.000 0Aa
0.1% 1.503 9±0.000 0Ba 1.504 0±0.000 0Bb
0.5% 1.503 9±0.000 1Ba 1.504 0±0.000 0Bb
1.0% 1.504 2±0.000 0Ca 1.504 3±0.000 1Cb
5.0% 1.504 8±0.000 1Da 1.505 7±0.000 1Db
10.0% 1.505 2±0.000 0Ea 1.507 0±0.000 0Eb
20.0% 1.508 1±0.000 1Fa 1.513 9±0.000 1Fb
30.0% 1.511 1±0.000 1Ga 1.522 0±0.000 0Gb

Figure 1

Direct view of translucency of experimental resin composites"

Table 3

Translucency of experimental resin composites(n=7)"

Filler proportion
(mass fraction)
Translucency parameter
F1.6 group F1.8 group
0 59.88±1.32Aa 59.88±1.32Aa
0.1% 59.71±1.27Aa 54.82±1.72Ba
0.5% 57.96±1.95Aa 41.64±2.79Cb
1.0% 57.61±1.69Aa 33.16±1.76Db
5.0% 45.32±2.35Ba 18.43±0.75Eb
10.0% 38.71±3.64Ca 12.51±0.73Fb
20.0% 26.28±1.05Da 5.79±0.66Gb
30.0% 22.20±1.16Ea 2.64±1.28Hb
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