Three Approaches of Resin Infiltration for MIH Incisor Opacities

Overview

Molar incisor hypomineralization (MIH) is a condition which involves enamel hypomineralization of one to four first permanent molars with or without permanent incisors. Affected permanent incisors present with demarcated enamel opacities which cause esthetic and psychological problems to patients with MIH. Microabrasion and etch-bleach surface treatment can provide easier, conservative, and biologically driven treatment approach compared to macroabrasion prior to prolonged resin infiltration for treating enamel opacities in incisors of MIH patients. The aim of this study is to evaluate the effect of microabrasion and etch-bleach surface treatment compared to macroabrasion prior to prolonged resin infiltration on esthetic appearance of permanent incisors affected with demarcated enamel opacities in MIH patients.

In this randomized controlled trial, patients aged 8-14 years suffering from demarcated enamel opacities in permanent incisors of MIH patients will be randomly divided into three groups according to surface treatment. The first group will receive microabrasion, the second group will receive microabrasion and etch-bleach surface treatments while the third group will receive macroabrasion surface treatment. Resin infiltration will be then applied to all groups with prolonged infiltration time for 30 minutes. Color changes will be assessed using Vita easy shade whereas oral health related quality of life will be assessed using Child Oral-Health-Related Quality of Life Questionnaire. Assessment will be done before, immediately after; and 1, 3, 6 and 12 months after treatment protocol in all groups.