THE COLORATION OF PROVISIONAL RESTORATION MATERIALS: COMPARISON OF THE EFFECTS OF MOUTHWASHES AND GREEN TEA
Purpose: The present study aims to evaluate the colour stability of provisional restorative materials stored in different mouth rinses and green tea extract for 14 days.
Materials and methods: 40 cylinders of 15 mm in diameter and 2 mm thick fixed provisional restoration material were prepared. The samples were separated into 4 groups according to the storage solutions. (3 different mouth rinses and green tea) (n=10) The values of L *, a *, b * were determined before and after storage in the solutions using spectrophotometer, and the ΔE * value was calculated. The effect of the mouth rinses and the provisional restoration materials of the green tea extract on colour change was determined by one way ANOVA. The Tamhane multiple comparison analysis was used to determine the differences between the groups (p<0,05)
Result: The colour stability of provisional restoration materials varies depending on the solution used. Listerine mouth rinses showed more colour change than did sensodyne and colgate. The minimal colour change was found in the green tea solution.
Conclusion: The effect of mouth rinses on colour stability of fixed temporary restorative materials is remarkable. As green tea shows less colour change, it can be suggested as an alternative to mouth rinses.
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