VIENNA, Austria: Molar incisor hypomineralisation (MIH) has a significantly high global prevalence, affecting around 14% of the world’s population, and its causes are poorly understood. Employing data from the 6th German Oral Health Study, a team of researchers from Austria, Germany and Switzerland has sought to determine the prevalence of MIH among younger adolescents in Germany, and their findings suggest that occurrence is decreasing, but that the condition continues to pose a significant public health challenge.