Aim: To study the treatment management of first permanent molars in children with Molar-Incisor Hypomineralisation (MIH).
Study design: Retrospective analysis.
Methods: The records of the clientele of a private paediatric dental practice were scanned. Thirty-six cases of children fulfilling the diagnostic criteria of MIH were retrieved who had been followed for a mean period of 4.5 years, and 36 children of matching age and gender, and with similar follow-up period, were randomly selected from the same clientele to serve as controls.
Results: Children in the MIH group exhibited greater DMFS and smaller dmfs scores. The frequency of restorative intervention was greater in children of the MIH group (OREST=11.00, 95% C.I. 2.85-42.45). Stainless-steel crowns had been placed only on MIH group molars. The follow-up records revealed that only restorations in the MIH group needed retreatment. Fillings and sealants in the MIH group had a greater probability of needing retreatment than in the control group (OREST=3.10, 95% C.I. 1.60-6.01).
Conclusions: Children affected by MIH may need to undergo a significant amount of restorative treatment at an early age. Moreover, fillings and sealants in MIH affected children have a greater probability of needing retreatment than in control group children.