Anodontia ndeyekushayikwa kwakakwana kwekukura kwemazino, uye hypodontia ndeyekushayikwa kwekumwe kukura kwemazino. Anodontia isingawanzo, inowanzoitika mumamiriro anonzi hypohydrotic ectodermal dysplasia, nepo hypodontia iri imwe yezvakajairika kukura kusagadzikana, ichikanganisa 3.5<unk>8.0% yevagari (kusasanganisira yechitatu molars). Kusavapo kwechitatu molars kwakajairika, kunoitika mu20<unk>23% yevagari, inoteverwa mukuwanda kweyechipiri premolar uye lateral incisor. Hypodontia inowanzobatanidzwa nekusavapo kwe lamina yemazino, iyo inonyanya kukanganiswa nemasimba ezvakatipoteredza, senge hutachiona uye chemotherapy mishonga, uye zvakare inosanganisirwa neakawanda syndromes, senge Down uye C. Hypodontia inofungidzirwa kuve chirwere chekuvandudzwa kwemazino ekunze. Inowanzoitika muvanhu vepasi.
kusavapo kwechivharo chemazino