MIH describes a disorder in enamel structure where molars (back teeth) and/ or incisives (front teeth) show yellow-ish/brown-ish or beige areas. Enamel is softer and more porous when the tooth is erupted, is frequently bursted or sensitive to temperature. The underlying cause is unclear.
Those teeth are prone to caries and require thorough examinations, treatment is dependent on the individual defect.