The monograph summarizes and systematizes information on methods of prosthetics of teeth with coronal defects using pin structures. Particular attention is paid to the biomechanics of the system "hard tooth tissue - fixing material - pin and cover structures" and issues of clinical application of pin structures. Original methods of prosthetics of teeth with defects of crown part with application of pin constructions are described and substantiated. Designed for dentists, teachers and students of dental faculties of medical universities, as well as undergraduates, graduate students, clinical residents.