Short-term Results of the Masking Effect of an Infiltrant Resin on Mild Molar Incisor Hypomineralization Lesions in Anterior Teeth
This non-controlled clinical study evaluated the masking effect of an infiltrant resin on mild molar incisor hypomineralization (MIH) lesions. Thirty MIH-affected anterior teeth with creamy/ white opacities from 12 children aged 6-15 years received the application of an infiltrant resin (Icon- DMG). Standard photographs were taken before (T1), immediately after (T2), and 1 week after (T3) resin infiltration. Two calibrated examiners qualitatively analyzed the color match using the Fédération Dentaire Internationale (FDI) scale. The binomial distribution test analyzed the scores of the color match at T1 with T2 and T3, and McNemar’s test analyzed the scores of the color match between T2 and T3 (α=0.05). There was a significant increase in color match between T1 and T2 (p=0.0005), between T1 and T3 (p=0.0005), and between T2 and T3 (p=0.0019). It was concluded that infiltrant resin was effective in improving the esthetic appearance of creamy/white opacities on MIH-affected anterior teeth.SUMMARY

Participant presenting opacities in the maxillary central incisors. (A) Initial clinical aspects (T1). (B) Immediately after resin infiltration (T2). (C) One week after resin infiltration (T3). In the right maxillary central incisor, the opacity did not change comparing T1, T2, and T3. In the left maxillary central incisor, the enamel color match increased considerably at T2 and T3. It is observed a small post-eruptive enamel breakdown in the incisal area.

Participant presenting opacity in the right maxillary central incisor. (A) Initial clinical aspect (T1). (B) Immediately after resin infiltration (T2). (C) One week after resin infiltration (T3). The opacity became less visible at T2 and T3.
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