Comparative evaluation of Icon\xae resin infiltration and Clinpro\u2122 XT varnish on colour and fluorescence changes of white spot lesions: a randomized controlled trial

Annapurna Kannan,Sridevi Padmanabhan

doi:10.1186/s40510-019-0276-y

Annapurna Kannan, Sridevi Padmanabhan

Open Access

https://doi.org/10.1186/s40510-019-0276-y

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Abstract

BackgroundThe aim of this trial was to comparatively evaluate Icon® resin infiltration and Clinpro™ XT varnish in restoring aesthetics of white spot lesions (WSLs) present post-orthodontic treatment.Materials and methodsTwo hundred forty WSLs were detected in 193 teeth of 12 patients. The participants were analysed—before intervention (T0), immediately after intervention (T1), 3 months later (T2) and 6 months later (T3), with a 1:1 allocation ratio for the application of Icon® resin infiltration and Clinpro™ XT varnish. Using a computer-generated allocation sequence, block randomization was done. A spectrophotometer was used to assess the colour of WSLs and the adjacent enamel, while a DIAGNOdent® was used to assess the fluorescence loss.ResultsImmediately after the intervention, Icon® resin infiltration showed statistically significant better improvement than Clinpro™ XT varnish in restoring the colour (p = 0.000); however, at 3 (p = 0.001) and 6 months (p = 0.000), this was reversed. Except at 3 months, the fluorescence loss sequentially reduced more for Icon® resin infiltration (4.48 ± 1.42 at T0 to 1.48 ± 0.81 at T3) and was not statistically significant.ConclusionsClinpro™ XT varnish showed significantly better improvement than Icon® resin infiltration in restoring the colour and lightness of the WSLs at 3 and 6 months. The fluorescence loss significantly recovered with both intervention methods between immediate application and at 6 months. However, Clinpro™ XT varnish-treated WSLs showed a statistically significant difference compared to the adjacent sound enamel at 6 months.

Highlights

The aim of this trial was to comparatively evaluate Icon® resin infiltration and ClinproTM XT varnish in restoring aesthetics of white spot lesions (WSLs) present post-orthodontic treatment
ClinproTM XT varnish-treated WSLs showed a statistically significant difference compared to the adjacent sound enamel at 6 months
At T3, 1 patient under the ClinproTM XT varnish intervention method was lost to follow-up

Summary

Introduction

The aim of this trial was to comparatively evaluate Icon® resin infiltration and ClinproTM XT varnish in restoring aesthetics of white spot lesions (WSLs) present post-orthodontic treatment. One of the deleterious effects of orthodontic treatment, primarily caused due to poor oral hygiene maintenance, is the occurrence of white spot lesions (WSLs) [1]. In the prevention and intervention categories, fluorides in the form of varnish, toothpaste, mouthwash, sealant and. The mild forms of WSLs can be left to natural remineralization which occurs over a period of 1 year [1, 9] and through other means such as CPP-ACP [3, 10] and fluoride varnishes [11]. The moderate and severe forms can be treated using bleaching, microabrasion, resin infiltration and restorations [12, 13]

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