Introduction. Hypodontia involves an anomaly with the lack of a small number of teeth on the dental arch. Hypodontia is classified as primary involving the lack of a tooth bud and secondary with the premature loss of teeth as a result of caries and its complications, trauma, tumors, having an impact on the development of the dento – maxillary apparatus through the lack of functional stimulus and causing severe consequences, thus being considered a major cause in the occurrence of dento – maxillary anomalies. Material and methods. In our study, the orthodontic assistance in the case of hypodontia is reflected through the bibliographic synthesis of articles on the subject of maintaining the integrity of the dental arch through digitally made space maintainers. Data collection for virtual planning involves investigating our patients by: photostatic exam, OPG, TRG, intraoral scanning and 3D printed study models. Results. The application of the individualized treatment plan is possible thanks to detailed examinations and virtual planning softwares, through which the type of orthodontic device is chosen taking into account the particularities of the clinical case, with its subsequent manufacture through CAD/CAM technology. Conclusions. Space maintainers are the orthodontic devices of choice, mainly used in teenagers and young adults to maintain the interdental space until the definitive restoration of the integrity of the dental arches through implanto – prostethic treatment. The technical – scientific progress gives us today a new manufacturing technique thanks to digital planning methods, which offers predictability, high precision and allows treatment to be individualized.