Аннотация:Dental caries, also known as tooth decay or a cavity, remains a major public health problem in the most communities even though the prevalence of disease has decreased since the introduction of fluorides for dental care. In addition, there is dental erosion, which is a chemical wear of the dental hard tissues without the involvement of bacteria. Besides, there are other dental losses, which may be of a medical (decay or periodontal disease), age (population aging), traumatic (accident) or genetic (disorders) nature. All these cases clearly indicate that biomaterials to fill dental defects appear to be necessary to fulfill customers’ needs regarding the properties and the processing of the products. Bioceramics and glass-ceramics are widely used for these purposes, as dental inlays, onlays, veneers, crowns or bridges. Among them, calcium orthophosphates (abbreviated as CaPO4) have some specific advantages over other types of biomaterials due to a chemical similarity to the inorganic part of both human and mammalian teeth's and bones. Therefore, CaPO4 (both alone and as constituents of various complex formulations) are used in dentistry as both fillers and implantable scaffolds. This review provides a brief knowledge on CaPO4 and describes in details current state-of-the-art on their applications in dentistry and dentistry-related fields. Among the recognized dental specialties, CaPO4 are most frequently used in periodontics; however, the majority of the publications on CaPO4 in dentistry are devoted to unspecified “dental” fields.