Effect of caries infiltration technique (icon) on the remineralization and color stability of enamel white spot lesions

Abstract

This research was designed to evaluate the effect of resin infiltration material (Icon) and remineralizing agents (fluoride, CPP-ACP) on remineralization and color stability of enamel white spot lesion. A total number of 120 sound non-carious human anterior teeth were collected. The teeth were divided into two main groups (60 teeth each); Group R: for assessment of enamel remineralization and Group S: for assessment of color stability. Each main group was further divided into four equal subgroups (15 teeth each) according to the treatment applied as follows: Subgroup (A): control, Subgroup (P): CPP-ACP, Subgroup (I): ICON Subgroup (F): Fluoride. Each subgroup was further subdivided into three equal division (5 teeth each) according to the storage period in artificial saliva; one week (1W), four weeks (4W) and six weeks (6W). For assessment of remineralization; the enamel white spot lesion specimens in the four different subgroups were examined three times (after one week, four weeks and six weeks from the first time of treatment application) by (SEM/EDX). The results of remineralization revealed that the subgroup (P) group was provided the highest ca/p ratio mean value, followed by subgroup (F), then subgroup (I) while subgroup (A) showed the lowest ca/p ratio mean value. For assessment of color stability; the enamel white spot lesion specimens in the three different subgroups were examined three times (after one week, four weeks and six weeks from the first time of treatment application) by a portable Reflective spectrophotometer. The results of color stability revealed that the subgroup (F) was provided the highest color variation mean value, followed by subgroup (P) group while subgroup (I) showed the lowest color variation mean value.