Research Article: In-Vitro Evaluation of The Stain Removal Efficacy Between Two Whitening Dentifrices During Orthodontic Treatment

Background This in-vitro study aimed to assess and compare the efficacy of a newly developed whitening dentifrice, Dentaklin White (TG), to Colgate Total® Whitening (CG), utilising a toothbrushing simulator machine. Methods Twenty enamel specimens were prepared and randomly divided into CG and TG. Orthodontic brackets were attached to the enamel specimens and were then stained with a mixture of coffee, tea, and chlorhexidine. A short 0.019x0.025” stainless steel (SS) archwire was ligated onto the brackets subsequently. All the specimens were subjected to a toothbrushing simulator for specific duration. The CIE L*a*b* colour change (ΔE) was evaluated using digital image analysis at T1 (2 weeks), T2 (4 weeks), and T3 (12 weeks) compared to T0 (baseline). Archwire roughness was analysed using a profilometer at T4 (2 years) compared to T0. Results The results indicated that there was a significant change in tooth colour associated with brushing duration for both CG and TG (p < 0.05) with no significant difference between the two dentifrices (p > 0.05). Both dentifrices notably removed more stains at Site A ( p < 0.05 ) and increased wire surface roughness ( p < 0.05 ) without a statistically difference between them ( p > 0.05 ). Conclusion Dentaklin White (TG) demonstrated comparable efficacy to Colgate Total® Whitening (CG).