Comparative Effects of Turmeric, Coffee, and Chewable Tobacco on the Color Stability of Tooth-colored Restorative Materials

Priyadarshni Bindal,Anand Ramanathan,Ali Dabbagh,Umesh Bindal,Kishore Ginjupalli

doi:10.13189/ojdom.2015.030301

Abstract

Objective: To compare the staining intensity of turmeric and chewable tobacco with that of coffee and to investigate the impact of staining status on the bleaching efficacy of discolored restorative materials. Study Design: A total of 72 specimens from two types of dental composites (nanocomposite, and microhybrid composite) and two types of glass ionomer cements (conventional glass ionomers, and resin-modified glass ionomers) were immersed in different staining media including turmeric, coffee, and chewable tobacco (3 Hour/day). The color changes were measured at 15th, 30th, and 45th days of staining according to the CIELAB system. The discolored specimens were then bleached using a 10% carbamide peroxide solution (2×30 min daily) and the color changes were quantified after 7 and 14 days of bleaching. The obtained data were further analysed using ANOVA with complementary Tukey's test (p<0.05). Results and Conclusion: Chewable tobacco displayed the most overall staining effect on the selected materials, followed by coffee and turmeric. Nanocomposites showed the highest vulnerability to color change due to the exposure to coffee and turmeric, while the highest color change by chewable tobacco was observed in the resin-modified glass ionomers. In contrast, the conventional glass ionomers were least stained in all staining solutions. Carbamide peroxide also exhibited more bleaching effect on nanocomposites compared to other selected restorative materials. Clinical Significance: Conventional glass ionomers and microhybrid composites are more suitable compared to resin-modified glass ionomers and nanocomposites for utilization in places where esthetic longevity is the prime concern (anterior teeth and premolars in smile line) and patient has high intake of coffee, turmeric, or chewable tobacco.

Highlights

Technological advancement in dental aesthetics has led to a growing interest on augmentation and repairing of damaged teeth with aesthetic restorative materials, rendering a flawless appearance
Nanocomposites showed the highest vulnerability to color change due to the exposure to coffee and turmeric, while the highest color change by chewable tobacco was observed in the resin-modified glass ionomers
Conventional glass ionomers and microhybrid composites are more suitable compared to resin-modified glass ionomers and nanocomposites for utilization in places where esthetic longevity is the prime concern and patient has high intake of coffee, turmeric, or chewable tobacco

Summary

Introduction

Technological advancement in dental aesthetics has led to a growing interest on augmentation and repairing of damaged teeth with aesthetic restorative materials, rendering a flawless appearance. Dental composites are widely accepted materials due to their desirable color matching properties and excellent polishability[1]. Glass ionomer cements possess a less favorable color matching quality compared to dental composites[2]. Due to their shade being quite close to natural teeth as well as their anti-cariogenic activity, these materials are preferred for restorative treatments of young population and those with high caries risk[3, 4]. Color stability is a crucial property required for anterior dental restorations and considered as a significant criterion that determines the serviceability of these materials[8, 9]. Discoloration may be due to a number of parameters including stain accumulation and surface roughness as extrinsic factors as well as water sorption, dissolution of ingredients, and degradation of material components as intrinsic factors[10, 11]

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Discussion

Conclusion