KẾT QUẢ ĐIỀU TRỊ KÉM KHOÁNG HÓA MEN RĂNG CỐI LỚN - RĂNG CỬA (MIH) Ở RĂNG CỬA MẮC MIH LOẠI NHẸ TRÊN NHÓM HỌC SINH 7 - 10 TUỔI

Abstract

7–10 YEARS

Molar-incisor hypomineralization (MIH) is a common enamel defect that affects both esthetics and function. While conventional treatment approaches may result in unnecessary loss of sound tooth structure, the resin infiltration technique using ICON offers a minimally invasive solution that preserves enamel, improves color, and reduces hypersensitivity. Methods: A non-controlled clinical intervention study was conducted on 45 children (aged 7–10 years) with mild to moderate MIH affecting permanent incisors at Phuong Thanh Dental Center, Dong Thap. The treatment protocol included enamel microabrasion, etching with 15% hydrochloric acid, ethanol (99%) desiccation, ICON resin infiltration, and light curing. Treatment outcomes were assessed based on shade change (VITA 3D Master shade guide), lesion size (AutoCAD analysis), hypersensitivity (VAS scale), and patient satisfaction. Results: All treated teeth (100%) showed immediate elimination of white spot lesions, with results maintained after two months. Shade matching with adjacent enamel was achieved in most cases. No adverse soft tissue reactions were observed. Hypersensitivity was eliminated in 84.4% of teeth immediately and in 100% after one month. High satisfaction was recorded, with 90,3% of patients and caregivers reporting satisfaction or high satisfaction. Conclusion: ICON resin infiltration is considered an effective, safe, and minimally invasive treatment option for managing mild to moderate MIH lesions.