Molar incisor hypomineralisation (MIH) is defined as the developmentally-derived dental defect that involves hypomineralisation of 1 to 4 permanent first molars (FPM), frequently associated with similarly affected permanent incisors. Clinically, this hypomineralised enamel damage of varying degrees, ranging from opacity to significant losses of substance with difficulty of management. The present work aims to show through a clinical case presenting a moderate MIH with an unusual localization and an asymmetric involvement, the step-by-step diagnostic approach and therapeutic management. Our therapeutic approach has been based on reducing tooth sensitivity, restoring aesthetics and protecting molars with preformed pedodontics crowns to avoid the risk of recurrence and repetitive procedures.
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