enamel epithelium


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Related to enamel epithelium: enamel organ, External enamel epithelium

e·nam·el ep·i·the·li·um

the several layers of the enamel organ remaining on the enamel surface after formation of enamel is completed.

e·nam·el ep·i·the·li·um

(ĕ-namĕl epi-thēlē-ŭm)
Several layers of enamel organ remaining on enamel surface after formation of enamel is completed.

enamel epithelium,

enamel

the white, compact and very hard substance covering and protecting the dentine of the crown of a tooth.

enamel bulge
the area of greatest diameter of a tooth, just external to the gum line, which acts to deflect food from the free gingival margin and the gingival crevice.
enamel epithelium
epithelium which creates a bell-shaped enamel organ, surrounding the dental papilla; the internal epithelium consists of columnar ameloblasts which secrete enamel.
enamel hypoplasia
incomplete or partial development; a common defect in dogs.
inherited enamel defect
an inherited absence of enamel from all teeth combined with excessive flexibility of joints in Holstein-Friesian cattle. The teeth are pink and obviously deficient in substance. A defect in collagen formation is probable.
enamel layer
the outermost layer of cells of the enamel organ.
mottled enamel
dental fluorosis; defective enamel, with a chalky white appearance or brownish stain, caused by excessive amounts of fluorine in drinking water and food preparations during the period of enamel calcification.
enamel organ
an epithelial cap over a dental papilla that develops into the enamel-producing organ. The shape of the enamel organ determines the shape of the tooth.
enamel points
sharp projections of enamel at the junction of the buccal and occlusal surfaces of a tooth. Seen most commonly in horses.
enamel rods
progressively mineralized glycoproteinaceous tubules, the basic structural units of enamel; enamel is acellular and consists of interrod material and rods,
enamel spot
remnant of the enamel cup in the center of an incisor tooth table in a horse.
Enlarge picture
Enamel spot. By permission from Sack W, Wensing CJG, Dyce KM, Textbook of Veterinary Anatomy, Saunders, 2002
enamel works
factories manufacturing enamels or using them extensively; sources of fluorine for pollution of pasture and water.
References in periodicals archive ?
They originate from the epithelium involved with the formation of teeth: enamel, odontogenic rests of Malassez, reduced enamel epithelium, and odontogenic cyst lining; and are locally invasive with infiltrative growths and frequent recurrences even after radical surgical treatment.
1990; Luten, 1958 Developmental anomaly Kronfeld, 1955 Break down of reduced enamel epithelium Muhler, 1957 Apical inflammation of primary teeth Seddon et al.
The gingiva, in formative phase, was seen and reduced enamel epithelium is present with elongated cells.
However strongest contention is that the cyst originates from reduced enamel epithelium as epithelial lining is attached to the neck of tooth.
Palato gingival grooves, also called palatoradicular grooves or radicular lingual grooves are developmental anomalies in which an infolding of the inner enamel epithelium and Hertwig's epithelial root sheath create a groove that passes from the cingulam and extend varying distances apically on to the root.
In both patterns, the outermost cells resemble those of the ameloblastic layer and the inner enamel epithelium.
Discussion: There is a lack of consensus on the aetiology of dens invaginatus the cause of DI is still unknown and controversial, possible mechanisms of this phenomenon may be listed as:(1) abnormal pressure from the surrounding tissues, (2) rapid and aggressive proliferation of a part of the internal enamel epithelium invading the dental papilla, (3) local growth retardation, (4) invagination of the crown before calcification of the teeth, (4) infection and (5) genetic factors.
Rushton proposed that the invagination is a result of rapid and aggressive proliferation of a part of internal enamel epithelium invading the dental papilla.