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. 2014 Mar;14(1):85-92.
doi: 10.1007/s13191-013-0276-4. Epub 2013 Mar 22.

Evaluation of colour stability of provisional restorative materials exposed to different mouth rinses at varying time intervals: an in vitro study

D Krishna Prasad  1 , Harshitha Alva  1 , Manoj Shetty  1
Affiliations

Evaluation of colour stability of provisional restorative materials exposed to different mouth rinses at varying time intervals: an in vitro study

D Krishna Prasad et al. J Indian Prosthodont Soc. 2014 Mar.

Abstract

The most important factor affecting esthetics is colour. Whether a definitive prosthesis or a provisional restoration, maintenance of esthetics is of prime concern along with restoration of function. Colour stability of provisional prosthesis is affected by various factors and various studies are documented in the literature on this. The purpose of this study was to evaluate the colour stability of provisional restorative materials exposed to different mouth rinses at varying time intervals. 120 discs, each of self cure tooth moulding material, Protemp 4 and Revotek LC were prepared and immersed in two mouth rinses, hexidine and periogard and evaluated for their colour stability after 1 week, 1 and 3 months. The data obtained was statistically analysed using ANOVA and Tukey's post hoc analysis. The results indicate that there is a significant difference in the colour variation of various materials in two different mouth rinses at different time intervals. Revotek LC was found to be the most colour stable material and periogard had the least staining potential at varying time intervals.

Keywords: Colour stability; Provisional restoration.

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Figures

Fig. 1
Fig. 1
Self cure tooth moulding material: group I
Fig. 2
Fig. 2
Protemp 4—3M ESPE: group II
Fig. 3
Fig. 3
Revotek LC—GC Corp: group III
Fig. 4
Fig. 4
Brass template for fabrication of specimens 10 mm diameter and 2 mm depth
Fig. 5
Fig. 5
Specimens in testing solutions
Graph 1
Graph 1
Staining caused by various solutions at 1 week
Graph 2
Graph 2
Staining caused by various solutions at 1 month
Graph 3
Graph 3
Staining caused by various solutions at 3 months
Graph 4
Graph 4
Stain taken up by each material in different staining solutions after 1 week
Graph 5
Graph 5
Stain taken up by each material in different staining solutions after 1 month
Graph 6
Graph 6
Stain taken up by each material in different staining solutions after 3 months
See this image and copyright information in PMC

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