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Paper Information

Journal:   JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES)   SEPTEMBER 2014 , Volume 15 , Number 3; Page(s) 117 To 122.
 
Paper: 

TRANSLUCENCY AND MASKING ABILITY OF VARIOUS COMPOSITE RESINS AT DIFFERENT THICKNESSES

 
 
Author(s):  DARABI FARIDEH*, RADAFSHAR GOLPAR, TAVANGAR MARYAM, DAVALOO REZA, KHOSRAVIAN AREF, MIRFARHADI NASTARAN
 
* GUILAN UNIVERSITY OF MEDICAL SCIENCES, SCHOOL OF DENTISTRY, THE END OF PROFESSOR SAMIIBLV, GUILAN UNIVERSITY OF MEDICAL SCIENCES COMPLEX, DENTAL SCHOOL, ZIP CODE: 41941-73774, RASHT, IRAN
 
Abstract: 

Statement of the Problem: Optical properties of the composite resins, concerning their translucency and thickness, are affected by discolored tooth structure or inherent darkness of the oral cavity.
Purpose: This study aimed to compare the translucency parameter (TP) of five different composite resins in different thicknesses and to evaluate their masking ability in black backgrounds.
Materials and Method: Five brands of composite resins; Gradia (GC) and Crystalline (Confi-dental) in opaque A2 (OA2), Vit-l-escence (Ultradent) in opaque snow (OS), Herculite XRV (Kerr) and Opallis (FGM) in dentin A2 (DA2) shades were selected to enroll the study. Color coordinates of each composite were determined at 0.5, 1, and 1.5 mm thicknesses on a white backing, the backing of material itself and a black backing were calculated by using a spectrophotometer to evaluate the translucency parameter (TP) of the study materials. The masking ability was also calculated from the specimens on the material itself and on black backing. The values under 2 were estimated as imperceptible. One-way ANOVA, T-test and Tukey HSD were employed for statistical analysis.
Results: The masking ability values, recorded for the 1.5 mm-thick specimens, were in the range of imperceptible except for the Herculite. There was no difference in TP values of the materials at 1.5 mm thickness. Opaque snow shade of Vit-l-escence and opaque A2 shade of Gradia showed lower TP values in comparison with the other 1 and 0.5 mm-thick materials and this difference was statistically significant (p<0.05).
Conclusion: In relatively thin thicknesses (
£1mm), these opaque/dentin shade composite resins could not mask the black background color.

 
Keyword(s): TRANSLUCENCY, COMPOSITE RESINS, MASKING, THICKNESS
 
 
References: 
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Click to Cite.
APA: Copy

DARABI, F., & RADAFSHAR, G., & TAVANGAR, M., & DAVALOO, R., & KHOSRAVIAN, A., & MIRFARHADI, N. (2014). TRANSLUCENCY AND MASKING ABILITY OF VARIOUS COMPOSITE RESINS AT DIFFERENT THICKNESSES. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), 15(3), 117-122. https://www.sid.ir/en/journal/ViewPaper.aspx?id=403969



Vancouver: Copy

DARABI FARIDEH, RADAFSHAR GOLPAR, TAVANGAR MARYAM, DAVALOO REZA, KHOSRAVIAN AREF, MIRFARHADI NASTARAN. TRANSLUCENCY AND MASKING ABILITY OF VARIOUS COMPOSITE RESINS AT DIFFERENT THICKNESSES. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES). 2014 [cited 2021May10];15(3):117-122. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=403969



IEEE: Copy

DARABI, F., RADAFSHAR, G., TAVANGAR, M., DAVALOO, R., KHOSRAVIAN, A., MIRFARHADI, N., 2014. TRANSLUCENCY AND MASKING ABILITY OF VARIOUS COMPOSITE RESINS AT DIFFERENT THICKNESSES. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), [online] 15(3), pp.117-122. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=403969.



 
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