Caption: Dentin region of a human tooth with canals or dentinal tublules (dental caniculi). The dentin tubules (seen in cross section) have been formed by cytoplasmic extensions of the odontoblasts (dentin-producing cells). Dentin is mineralized connective tissue below the tooth enamel surface. It forms the majority of the tooth and the compostion is similar to bone. The visible part of a tooth (the crown) consists of enamel covered dentin. Exposed dentin is sensitive to heat, cold and touch because it contains nerve endings.
Magnification*: x800
Type: SEM
Copyright 2008 Dennis Kunkel Microscopy, Inc.
Keywords: 22286B,medical,tooth,human,enamel,SEM,cold sensitive,heat sensitive,nerve endings,touch sensitive,12.01.08,human body,teeth,dentin,dental caniculi,dental caniculus,dentin-producing cell,dentin-producing cells,dentin canal,dentin canals,dentin producing cell,dentin producing cells,dentin tubule,dentin tubules,dentinal tubule,dentinal tubules,mineralized connective tissue,odontoblast,odontoblasts,tooth dentin,teeth dentin