A comparative quantitative - qualitative assessment in orthodontic treatment of white spot lesion treated with 3 different commercially available materials - In vitro study

Abstract

BackgroundTo comparatively evaluate the esthetic improvement of white-spot lesions (WSLs) treated by: BiominF, CPP-ACP paste with fluoride & ICON resin infiltration, using Spectrophotometer & Diagnodent.Material and MethodsThe study was done using 72 sound permanent extracted premolars, divided into four groups (18 teeth per group). After taking the ethical approval the study was commenced. WSLs were created on human premolars and randomly assigned to four groups: Group A: Artificial Saliva, Group B: CPP-ACP with fluoride, Group C: BiominF, Group D: Resin infiltration (Icon). The color change (∆E) of each specimen was measured with a Spectrophotometer (VITA Easy Shade Compact), and fluorescence loss (∆Q) was measured by a laser fluorescence device (DIAGNOdent, Kavo, Biberach, Germany), at different time points after treatment: baseline (0 weeks), 2 weeks, 4 weeks, and 6 weeks.ResultsThe ∆E and ∆Q baseline values for the four groups before the treatments did not differ significantly. Icon treatment improved the WSL color significantly and gave the lowest ∆E (5.12± 3.92) & ∆Q (1.64 ±0.72) compared with other treatments at end of 6 weeks (P< .01). In the BiominF and CPP-ACP with fluoride treatment groups, ∆Q & ∆E showed significant recovery compared with the baseline values (P< .05).ConclusionsWithin the limitations of the study, it can be concluded that all the three remineralizing agents used in the study could effectively remineralize artificial enamel caries and showed improvement in color change and fluoresence as compared to the baseline. Therefore they can be effectively used for the treatment of the white spot lesions. Key words:White spot lesions(WSL), Resin infiltration (ICON), BiominF, CPP-ACP with fluoride.

Comparing Impact of Two Resin Infiltration Systems on Microhardness of Demineralized Human Enamel after Exposure to Acidic Challenge

“…Acid resistant nail varnish coated the entire tooth except the windows to ensure that the demineralizing solution act on the exposed area of enamel only in a proportion of 2 ml solution\mm 2 to avoid over or under demineralization of the exposed enamel area [10]. Specimens were immersed in the demineralizing solution (CaCl 2 , NaH 2 PO 4 , lactic acid, and fluoride) to make subsurface demineralization of approximately 150 microns width, with intact surface like the early enamel lesion [11]. Calcium and phosphate concentrations were 50% of the saturation level in the demineralization solution which allows dissolution of enamel subsurface.…”

“…The demineralizing solution had the following composition: CaCl 2 = 2.2 mM, NaH 2 PO 4 = 2.2 mM, lactic acid = 0.05 M, fluoride = 0. 2 pp, adjusted with 50% NaOH to a pH 4.5 [11]. Then, the teeth were removed from the demineralizing solution, washed with water, and dried on absorbent paper.…”

Effect of Different Remineralizing Agents on White Spot Lesions

“…The demineralizing solution had the following composition: CaCl 2 = 2.2 mM, NaH 2 PO 4 = 2.2 mM, lactic acid = 0.05 M, and fluoride = 0. 2 pp, adjusted with 50% NaOH to a pH 4.5 [13]. The pH of the demineralizing solution was checked during and after preparation of solution using digital pH meter.…”

Impact of Two Remineralizing Agents on White Spot Lesions

“…2pp, adjusted with 50% NaOH to a pH 4.5. (13) The pH of the demineralizing solution was checked during and after preparation of solution using digital pH meter. The solution was replaced every 3 days.…”