The treatment need at the level of the first permanent molar with MIH syndrome

Objectives. To asses the distribution of first permanent molars (FPM) with molar-incisor hypomineralisation syndrome (MIH) according to the severity of defects and associated carious lesions, as well as treatment methods applied at this level in a group of children treated at the Pedodontics Department, Bucharest. Material and method. Retrospective descriptive observational study performed on dental records of 100 patients (38 boys) (mean age = 8.41±1.21 years), diagnosed with MIH. Distribution and severity of MIH type defects, associated carious lesions, as well as the treatment methods applied at FPMs with MIH were recorded. There were calculated: the mean number of FPM with MIH/patient, the distribution of FPM according to hipomineralization severity and caries damage, the treatment methods applied to MIH-affected FPM. Statistical analysis was performed with SPSS 18.0, using ANOVA and t-test (p < 0.05). Results. Mean number of FPM with MIH/patient = 3.66. MIH severity: 26.8 – mild defects, 46.4% – moderate defects, 26.8% – severe defects. Mean number of decayed FPM with MIH/patient = 2.7; 73.49% of MIH-affected FPM had associated carious lesions: 52.18% – uncomplicated caries, 21.31% – complicated caries. Treatments applied to FPM with MIH: 26.8% – preventive measures, 52.2% – restorations, 12.2% – endodontic treatment, 9.8% – extraction. Conclusions. Various treatment options are available depending on hypomineralization severity and the presence of associated caries lesions. It is important to apply preventive methods early in order to minimize complications and to avoid invasive interventions such as endodontic treatments or extractions at an early age