Effect of Ageing Process and Brushing on Color Stability and Surface Roughness of Treated White Spot Lesions: An in vitro Analysis

Abstract

Purpose To evaluate the effect of ageing process and brushing on the color stability and surface roughness of white spot lesions treated with resin infiltration or remineralization. Patients and Methods Artificial white spot lesions were created on the facial surface of extracted bovine teeth. Specimens were divided into three main groups based on treatment received: resin infiltration (Icon), MI Paste Plus (MI) or no treatment (control). Specimens underwent pH cycling for 7 days, followed by brushing with toothbrush simulator. Specimens were then immersed in three different solutions (water, cranberry juice, or coffee) for 7 days. Surface roughness (SR) and color stability (CS) assessments were performed at baseline and after each test. One-way and two-way ANOVA were used to calculate the statistical comparisons between the groups and significance considered at P <0.05. Results Icon group had the least color change after pH cycling, while MI showed the least color change after brushing test. Immersion in coffee produced the highest color change in all groups, followed by cranberry juice. Icon group had the best color stability when immersed in cranberry juice or coffee. Control and the MI treated specimens showed gradual increase of SR after pH cycling and brushing test, while Icon group had improved surface properties. Brushing test alone produced less color change in comparison with immersion in cranberry juice and coffee; however, brushing increased SR. Conclusion Icon treatment showed superior color stability and surface roughness, compared to the control and the MI treated teeth. Brushing had less influence on color change compared to the immersion in cranberry juice or coffee.

Management of Enamel Defects with Resin Infiltration Techniques: Two Years Follow Up Retrospective Study

“…It is interesting to note that in cases where a “clinically sufficient” result was not found ( Figure 4 B), an improvement was nevertheless detected at the follow-up, probably due to the continuous infiltration over time of the fluid resin inside of the enamel structure ( Figure 4 C,D). In addition, stability of the results obtained at the two-year follow-up was found, agreeing with the results of an in vivo study with a six-year follow-up [ 21 ] and an in vitro study [ 22 ] in which the elements treated with infiltrative technique, after being subjected to pH changes or to common home oral hygiene techniques, showed better color stability than control cases [ 22 ]. However, color variations were found following exposure to red tea or black coffee [ 23 ].…”

Surface roughness and microhardness of enamel white spot lesions treated with different treatment methods

“…Overall, ICON treatment has shown promising results in reducing surface roughness and achieving a surface that closely resembles sound enamel. However, further studies are needed to explore the potential variations in surface roughness outcomes and to optimize the application technique for more consistent results [ 27 , 34 ].…”

Evaluation of resin infiltration for inhibiting initial caries progression: An in vitro study using Micro-Computed Tomographic analysis

“…An infiltrant was re-applied for another minute, excess removed, and light-cured. Surface polishing employed fine and superfine aluminum oxide discs (Sof-Lex, 3 M ESPE, USA) using a slow-speed handpiece with intermittent brushing movement and light pressure, involving 10 strokes per disc and water-rinsing between sequences ( Almulhim et al, 2021 , Venturini et al, 2006 ).…”