The harmonious psycho-somatic development of the human body, implicitly the sanogenesis of the dento-maxillary apparatus, is the subject of major concerns highlighted by numerous socio-economic actions and of prophylactic and curative medicine, planned and directed. In this context, the problems regarding the etiopathogenic, clinical and therapeutic particularities of the dento-alveolar disharmony through the dento-alveolar incongruity during the growth period, are greatly actual, precisely because of the increasing frequency of this anomaly, especially due to the dento-implications, paradontal, occlusal, aesthetic, masticatory, dishomeostatic and psycho-social, which they generate. Dento-alveolar disharmony with incongruence, is characterized by the disproportion between the size of the teeth and the size of the alveolar arches, aspect also known as dental clogging or disarming - crunching jaw. The various and numerous causes, the diversity of the board clinical associations and especially the association of dental crushes with common clinical signs and other dento-maxillary abnormalities, especially during this period of morphological and functional modeling, require a certain clinical and therapeutic discernment, careful observation, in order to diagnose correctly, completely and obviously the recommendation and individualization of the most appropriate therapeutic solutions. A number of 17 subjects with age limits of 6.6-17 years were investigated, presenting various clinical forms of dento-alveolar disharmony with incongruence, with the distribution of sexes being: 8 girls and 9 boys. The prognosis is most often unfavorable. Diagnosed late, in permanent dentition, involves complex, more laborious, surgical-orthodontic long-term treatments.