Orthodontic Bands for Preventing Post-Eruptive Breakdown in Molars Affected by Molar Incisor Hypomineralisation

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ABSTRACT

Aim

Evaluating the effectiveness of orthodontic bands luted with glass-ionomer cement (GIC) in preventing dental caries and PEB in extensively yellow-brown defective MIH-FPMs.

Background

First Permanent Molars affected by Molar Incisor Hypomineralisation (MIH-FPMs) are susceptible to post-eruptive breakdown (PEB) and caries.

Results

At 18 months, study and control survival rates were 98% and 73%, respectively. The difference was significant (p<0.001; Log Rank test). The control group had a higher enamel breakdown frequency. The study group showed a reduced plaque index (p= 0.010; Friedman test). Two (9%) orthodontic bands lost retention, and the mean number of GIC reapplications per teeth was 1.9 ± 1.0.

Conclusion

Orthodontic bands with GIC and stringent preventive measures can effectively maintain MIH-FPMs for at least 18 months, allowing the postponement of more comprehensive restorative approaches.

Study Design

Records of 11 children, with 22 MIH-FPMs treated using GIC bands, and 22 controls with 22 MIH-FPMs treated through mineralisation protocols, were examined by two calibrated evaluators. Included FPMs were devoid of caries, breakdown to dentin (DB), and prior restorations. Kaplan-Meier analysis established survival probabilities at 18 months. The primary outcome was the absence of a restoration requirement due to caries or DB. Secondary outcomes encompassed PEB prevention and plaque index reduction.

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