Book excerpt: Molar incisor hypomineralization (MIH) has become a much-discussed topic of interest that presents major challenges for dental professionals in practice and research. It is defined as a qualitative enamel defect that typically occurs on one or more first permanent molars with or without the involvement of the permanent incisors. This book serves as a comprehensive reference that critically appraises the controversies around MIH found in the scientific literature. Practical advice about diagnosis and treatment of the disease is provided, and the various clinical treatment options are explained in detail. The text is written for dental practitioners, postgraduate and undergraduate students and researchers, as well as anyone who would like to expand their knowledge of this contemporary topic in everyday clinical dentistry.