IADR Abstract Archives

Quantitative Comparison of Opalescence and Haze of Translucent Universal Composites

Objectives:   This work compares the important esthetic optical properties of opalescence and transmission haze for various commercially available composites utilized on the incisal edges of composite restorations.  From reported literature values of human enamel, an opalescence value of 22.9±1.9 should match natural dentition.  Furthermore, lower haze materials should have better transmission of light in the incisal edge.

Methods:   Incisal, clear, or translucent shades of 7 different universal composite materials were cured into 30mm diameter by 1mm thick discs.  Three replicate measurements of opalescence (Cab) and transmission haze were made using a Hunter Spectrophotometer.  Charisma™ (Clear Opal), Empress™ Direct (Tran 20), Estelite™ Sigma Quick (Clear Enamel), Esthet-X™ HD (Clear Enamel), Filtek™ Supreme Ultra (Clear Translucent), Herculite™ Ultra (Light Incisal), and Tetric™ EvoCeram (Translucent) were evaluated.

Results:  

Material

Shade

Opalescence (Cab)

Transmission Haze (%)

Charisma™

Clear Opal

24.22±0.15

87.36±0.07

Empress™ Direct

Tran 20

10.50±0.06

91.62±0.32

Estelite™ Sigma Quick

Clear Enamel

9.82±0.02

98.92±0.04

Esthet-X™ HD

Clear Enamel

17.29±0.09

81.31±0.29

Filtek™ Supreme Ultra

Clear Translucent

21.89±0.21

55.09±0.50

Herculite ™ Ultra

Light Incisal

19.31±0.39

93.14±0.07

Tetric™ EvoCeram

Translucent

10.61±0.09

96.70±0.03

Conclusions:   Through statistical analysis (ANOVA, pairwise t-test, p<0.05) of the responses, the Filtek™ Supreme Ultra and Charisma™ materials showed opalescence statistically not different from that previously reported for human enamel, whereas the other materials were statistically lower.  Filtek™ Supreme Ultra had statistically lower haze than any of the other measured composites.  Interesting micro- and nanoscale structural and optical properties of this nanocomposite may be the cause of such unique behavior.


IADR/AADR/CADR General Session
2013 IADR/AADR/CADR General Session (Seattle, Washington)
Seattle, Washington
2013
2783
Dental Materials 11: Color and Appearance (Esthetics)
  • Dunbar, Timothy D.  ( 3M ESPE, St. Paul, MN, USA )
  • Craig, B.d.  ( 3M ESPE, Maplewood, MN, USA )
  • Oxman, J.d.  ( 3M ESPE, Maplewood, MN, USA )
  • Bigham, W.s.  ( 3M ESPE Dental Division, Maplewood, MN, USA )
  • Kittelson, J.l.  ( 3M ESPE, Maplewood, MN, USA )
  • Halvorson, R.h.  ( 3M ESPE, Maplewood, MN, USA )
    • Oral Session
    Color and Appearance
    03/23/2013