dental papilla


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papilla

 [pah-pil´ah] (L.)
a small, nipple-shaped projection or elevation. adj., adj pap´illary.
circumvallate papilla
2. one of the papillae in the area next to a vallate papilla.
conical papilla one of the sparsely scattered elevations on the tongue, often considered to be modified filiform papillae.
papillae of corium conical extensions of the fibers, capillary blood vessels, and sometimes nerves of the corium into corresponding spaces among downward- or inward-projecting rete ridges on the undersurface of the epidermis.
dental papilla (dentinal papilla) the small mass of condensed mesenchyme capped by each of the enamel organs.
duodenal papilla either of the small elevations (major and minor) on the mucosa of the duodenum, the major at the entrance of the conjoined pancreatic and common bile ducts, the minor at the entrance of the accessory pancreatic duct.
filiform papilla one of the threadlike elevations covering most of the tongue surface.
foliate papilla one of the parallel mucosal folds on the tongue margin at the junction of its body and root.
fungiform papilla one of the knoblike projections of the tongue scattered among the filiform papillae.
gingival papilla the triangular pad of the gingiva filling the space between the proximal surfaces of two adjacent teeth.
hair papilla the fibrovascular mesodermal papilla enclosed within the hair bulb.
incisive papilla an elevation at the anterior end of the raphe of the palate.
lacrimal papilla an elevation on the margin of either eyelid, near the medial angle of the eye.
lingual papillae elevations on the surface of the tongue, containing the taste buds; the conical, filiform, foliate, fungiform, and vallate papillae.
mammary papilla nipple (def. 1).
optic papilla optic disk.
palatine papilla incisive papilla.
papilla pi´li hair papilla.
renal papilla the blunted apex of a renal pyramid.
tactile papilla tactile corpuscle.
urethral papilla a slight elevation in the vestibule of the vagina at the external orifice of the urethra.
vallate papilla one of the 8 to 12 large papillae arranged in a V near the base of the tongue.
papilla of Vater (Vater's papilla) major duodenal papilla.

den·tal pa·pil·la

[TA]
a projection of the mesenchymal tissue of the developing jaw into the cup of the enamel organ; its outer layer becomes a layer of specialized columnar cells, the odontoblasts, that form the dentin of the tooth.
Synonym(s): papilla dentis [TA], dentinal papilla

den·tal pa·pil·la

(den'tăl pă-pil'ă) [TA]
A projection of the mesenchymal tissue of the developing jaw into the cup of the enamel organ; its outer layer becomes a layer of specialized columnar cells, the odontoblasts, which form the dentin of the tooth.

den·tal pa·pil·la

(den'tăl pă-pil'ă) [TA]
Projection of the mesenchymal tissue of the developing jaw into the cup of the enamel organ; its outer layer becomes a layer of specialized columnar cells, the odontoblasts, which form the dentin of the tooth.
Synonym(s): dentinal papilla.
References in periodicals archive ?
(b) The primary SCAP were isolated from the dental papilla tissues and displayed spindle-like morphological characters.
In this work we found a great quantity of amelogenin and enamelysin in odontoblast as well as dental papilla in late stages, which would suggest that odontoblast produce itself amelogenin and enamelysin.
A) Control group: Ameloblasts (blue arrow), odontoblasts (yellow arrow), dental papilla mesenchymal cells (red arrow) in the normal developmental differentiation.
(5) Lowell and Soloman believe that fused teeth result from some physical action that causes the young tooth germs to come into contact, thus producing necrosis of the intervening tissue, thus allowing the enamel organ and Dental papilla to fuse together.
Dens invaginatus is a developmental malformation resulting from an invagination of enamel organ into the dental papilla, beginning at the crown and some- times extending into the root before calcification oc- curs.1-4 This condition most commonly occurs in perma- nent maxillary lateral incisors, followed by maxillary central incisors,premolars,canines and less frequently in the molars.5-9 Cases of bilateraland multiple occur- rence have also been reported.6,10 The presence of double dens invaginatus is extremely rare.2 Involvement of deciduous teeth have also been reported.11
Rushton proposed that the invagination is a result of rapid and aggressive proliferation of a part of internal enamel epithelium invading the dental papilla.16
(3) The lesion may evolve from a dental germ (dental papilla or follicle) or from the periodontal membrane, and therefore is invariably be related to the coronal or radicular portion of teeth.
Dens Invaginatus (DI) is a dental anomaly which results from invagination of enamel organ into dental papilla, beginning at the crown and sometimes extending into the root before calcification.
Its expression is increased in cap stage in enamel knot, inner enamel epithelium and dental papilla whereas Msx2 expressed in odontoblasts, cuspal formation, root initiation.
(5) It has been thought that some forces or pressure produces impact of the developing tooth germs and subsequent union of enamel organ and the dental papilla resulting in fusion of teeth or genetic inheritance can be a possible etiology.
(11) Zhu suggested that while the OKC may arise from the dental lamina with the presence of the dental papilla required for its development, the OOC may arise from oral epithelium under the influence of dental papilla or only the oral epithelium (12).