Abstract
ABSTRACTAimThis study aimed to assess the iron stain removal efficacy of three toothpastes in extracted primary teeth.Materials and methodsIn this in vitro study, 60 extracted sound primary teeth were selected, decoronated at the cementoenamel junction, and their pulp chambers were filled with a composite. The teeth were then immersed in ferrous sulfate solution and brushed 3,000 times in an automatic tooth-brushing machine using Colgate, whitening Crest, and conventional Crest dentifrices. Stain removal was done in four groups using a prophylaxis paste. Digital images were obtained from the teeth before and after brushing with dentifrices and the changes in color parameters were measured using Photoshop and iColor software programs. Changes in color parameters were statistically analyzed using one-way ANOVA while multiple comparisons were done by Tukey's test.ResultsThe greatest change in chroma was observed in the prophylaxis group and then in the whitening Crest, Colgate, and conventional Crest (mean values of −65.2, −31.07, −21.27, and −0.73, respectively). Prophylaxis completely removed the stains. The greatest reduction in value occurred in conventional Crest, Colgate, and whitening Crest (−18.07, −12.23, and −0.4, respectively). In the L*a*b* system, the least reductions were noted in the whitening Crest, Colgate, and conventional Crest (mean values of −1.96, −3.92, and −3.37, respectively). Prophylaxis significantly improved tooth brightness (a mean increase of 4.26).ConclusionNone of the toothpastes in this study were capable of effectively removing iron stains. Crest whitening toothpaste was slightly effective in this regard.Clinical significanceIron drops are routinely prescribed for children younger than 2 years of age to prevent iron deficiency and iron deficiency anemia. However, iron stains on teeth are a common concern for many parents. Finding toothpastes with greater efficacy for iron stain removal can help in this respect.How to cite this articleHeidari A, Shahrabi M, et al. Efficacy of Three Toothpastes in Iron Stain Removal from Primary Teeth. Int J Clin Pediatr Dent 2019;12(1):10–14.
Highlights
At present, dental esthetics is especially important and many patients present to dental offices complaining of unesthetic and discolored anterior teeth and demand esthetic restorations
Iron drops are routinely prescribed for children younger than 2 years of age to prevent iron deficiency and iron deficiency anemia
None of the toothpastes in this study were capable of effectively removing iron stains
Summary
Dental esthetics is especially important and many patients present to dental offices complaining of unesthetic and discolored anterior teeth and demand esthetic restorations. The main reason for tooth discoloration is the accumulation of external stains on the surface or within the pellicles covering the tooth surfaces.[1]Such stains are formed within the salivary pellicles due to chromogens present in foods and drinks, such as tannins in tea and coffee or habits like smoking.[1,2] The staining ability of some coloring agents such as black tea and coffee is further enhanced when cationic mouthrinses, such as chlorhexidine or salts of polyvalent metals such as tin and iron are used.[3]Adsorption and deposition of different agents on the tooth surfaces are responsible for extrinsic staining Such adsorption occurs due to electrostatic forces, hydration, hydrogen bonds, and hydrophilic reactions. The exact mechanism of adhesion of these stains to tooth surfaces is yet to be clearly understood.[4]
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