Biomaterial Database

Double teeth with hypodontia in identical twins. 1987

N N Nik-Hussein, and A H Salcedo

There is now considerable evidence to support the theory that heredity is the origin of this anomaly. The condition in one of the twins described here was the mirror image of the condition of the other.

UI	MeSH Term	Description	Entries
D007180	Incisor	Any of the eight frontal teeth (four maxillary and four mandibular) having a sharp incisal edge for cutting food and a single root, which occurs in man both as a deciduous and a permanent tooth. (Jablonski, Dictionary of Dentistry, 1992, p820)	Incisors
D008297	Male		Males
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D004200	Diseases in Twins	Disorders affecting TWINS, one or both, at any age.	Diseases in Twin,Twin, Diseases in,Twins, Diseases in,in Twin, Diseases,in Twins, Diseases
D005671	Fused Teeth	Two teeth united during development by the union of their tooth germs; the teeth may be joined by the enamel of their crowns, by their root dentin, or by both.	Double Tooth,Fused Mandibular Incisors,Incisors, Fused Mandibular,Teeth, Fused,Fused Mandibular Incisor,Incisor, Fused Mandibular,Mandibular Incisor, Fused,Mandibular Incisors, Fused,Tooth, Double
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000848	Anodontia	Congenital absence of the teeth. It may involve all (total anodontia) or only some of the teeth (partial anodontia, hypodontia), or six or more of the teeth (oligodontia) and both the deciduous and the permanent dentition, or only teeth of the permanent dentition.	Dental Agenesis, Familial,Familial Dental Agenesis,Familial Tooth Agenesis,Hypodontia,Oligodontia,Partial Anodontia,Total Anodontia,Hypodontia Oligodontia 1,Tooth Agenesis, Familial,Tooth Agenesis, Selective, 1,Agenesis, Familial Dental,Agenesis, Familial Tooth,Anodontia, Partial,Anodontia, Total,Familial Dental Ageneses,Familial Tooth Ageneses,Oligodontia 1, Hypodontia,Oligodontias,Partial Anodontias,Total Anodontias
D014071	Tooth Abnormalities	Congenital absence of or defects in structures of the teeth.	Odontome,Abnormalities, Teeth,Abnormalities, Tooth,Teeth Abnormalities,Abnormality, Teeth,Abnormality, Tooth,Odontomes,Teeth Abnormality,Tooth Abnormality
D014096	Tooth, Supernumerary	An extra tooth, erupted or unerupted, resembling or unlike the other teeth in the group to which it belongs. Its presence may cause malposition of adjacent teeth or prevent their eruption.	Molar, Fourth,Teeth, Supernumerary,Fourth Molar,Fourth Molars,Molars, Fourth,Supernumerary Teeth,Supernumerary Tooth
D014427	Twins	Two individuals derived from two FETUSES that were fertilized at or about the same time, developed in the UTERUS simultaneously, and born to the same mother. Twins are either monozygotic (TWINS, MONOZYGOTIC) or dizygotic (TWINS, DIZYGOTIC).	Twin