Biomaterial Database

[Morphological studies on the cervical line of the deciduous teeth. Three-dimensional observation on mandibular second deciduous molars]. 1990

S Koganei

Department of Pedodontics, Nihon University School of Dentistry at Matsudo.

Morphological observation of cervical line of deciduous teeth has been studied in many ways. But there are few reports of research observed from a three-dimensional view point. Using twenty seven mandibular right second deciduous molars, we studied morphological observation of cervical line of physiologically sound deciduous teeth by three-dimensional measuring system. Three-dimensional coordinate values were obtained from the center pit and the mesiolingual cusp of mandibular right second deciduous molar. We used the three-dimensional measuring system (Microcode BX 303: MITUTOYO), and then the three-dimensional coordinate values obtained were transferred to a microcomputer for analysis. As a result the figure of cervical line of the mandibular right second deciduous molar observed from the XY-axis can be grouped into two, and the Z-axis can be classified two types, and we found one new method related to the morphological observation of cervical line.

UI	MeSH Term	Description	Entries
D008334	Mandible	The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.	Mylohyoid Groove,Mylohyoid Ridge,Groove, Mylohyoid,Grooves, Mylohyoid,Mandibles,Mylohyoid Grooves,Mylohyoid Ridges,Ridge, Mylohyoid,Ridges, Mylohyoid
D008963	Molar	The most posterior teeth on either side of the jaw, totaling eight in the deciduous dentition (2 on each side, upper and lower), and usually 12 in the permanent dentition (three on each side, upper and lower). They are grinding teeth, having large crowns and broad chewing surfaces. (Jablonski, Dictionary of Dentistry, 1992, p821)	Molars
D009811	Odontometry	Measurement of tooth characteristics.
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014094	Tooth, Deciduous	The teeth of the first dentition, which are shed and replaced by the permanent teeth.	Primary Tooth,Tooth, Primary,Baby Teeth,Baby Tooth,Dentition, Deciduous,Dentition, Primary,Milk Teeth,Milk Tooth,Primary Teeth,Teeth, Deciduous,Teeth, Primary,Deciduous Dentition,Deciduous Dentitions,Deciduous Teeth,Deciduous Tooth,Dentitions, Deciduous,Dentitions, Primary,Primary Dentition,Primary Dentitions,Teeth, Baby,Teeth, Milk,Tooth, Baby,Tooth, Milk