This color atlas and textbook describes the initial phase of human dentition. It includes more than 1,500 photographs of fetal and infant teeth up to the age of one year. Photographs with concise explanatory text depict steps of these developmental phases. The teeth are photographed from six different aspects: buccal, lingual, mesial, distal, incisal, and from the root direction. A supplementary software program for age estimation from dental measurements can also be used in conjunction with the material in this text.