In dentistry, the portion of the tooth that is covered by enamel. Also a type of restoration that covers all or most of the natural tooth.
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1. Any structure, normal or pathologic, resembling or suggesting a c. or a wreath. 2. In dentistry, that part of a tooth that is covered with enamel, or an artificial substitute for that part. SYN: corona [TA]. [L. corona]
- anatomical c. SYN: c. of tooth.
- artificial c. a fixed restoration of the major part of the entire coronal part of a natural tooth; usually of gold, porcelain, or acrylic resin.
- bell-shaped c. the c. of a tooth that has an exaggerated occlusogingival contour; human deciduous molars typify the bell-shaped c..
- ciliary c. SYN: corona ciliaris.
- clinical c. that part of the c. of a tooth visible in the oral cavity. SYN: corona clinica.
- c. of head SYN: corona capitis.
- jacket c. a hollow c. of acrylic resin, fused porcelain or cast gold, combinations of gold and acrylic or gold and porcelain; it fits over the prepared stump of the natural c..
- radiate c. SYN: corona radiata.
- c. of tooth the portion of a tooth covered with enamel. SYN: anatomical c., corona dentis.
- c. of Venus papular lesions of secondary syphilis on the forehead near the hair margin.

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crown 'krau̇n n
1) the topmost part of the skull or head
2) the part of a tooth external to the gum or an artificial substitute for this
crown vt to put an artificial crown on (a tooth) vi in childbirth to appear at the vaginal opening used of the first part (as the crown of the head) of the infant to appear <an anesthetic was given when the head \crowned>

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1. the part of a tooth normally visible in the mouth and usually covered by enamel.
2. a dental restoration that covers most or all of the natural crown. It may be made of porcelain (sometimes bonded to a metal substructure), gold, a combination of these, or less commonly other materials. Most crowns are like thimbles and are custom made to fit over a trimmed-down tooth. A post crown is used to restore a tooth when insufficient of the natural crown remains. A post is inserted into the root and the missing centre of the tooth is built up; over it is fitted a thimble-like crown to restore the natural shape of the tooth. root canal treatment is required before a post crown can be made.

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(kroun) [L. corona] 1. the topmost part of an organ or other structure, such as the top of the head, or the upper part of a tooth (corona dentis [TA]); see anatomical c. and physiological c. 2. artificial c.

Medical dictionary. 2011.


Look at other dictionaries:

  • Crown — or The Crown may refer to: Crown (anatomy), a part of the head or of a hat Headgear Coronet, a small crown consisting of ornaments fixed on a metal ring. Unlike a crown, a coronet never has arches.[citation needed] Crown (headgear), ceremonial… …   Wikipedia

  • Crown — (kroun), n. [OE. corone, coroun, crune, croun, OF. corone, corune, F. couronne, fr. L. corona crown, wreath; akin to Gr. korw nh anything curved, crown; cf. also L. curvus curved, E. curve, curb, Gael. cruinn round, W. crwn. Cf. {Cornice},… …   The Collaborative International Dictionary of English

  • Crown — index culminate, culmination, honor, maximum (pinnacle), pinnacle, surmount Burton s Legal Thesaurus. William C. Burton …   Law dictionary

  • crown — [kroun] n. [ME coroune < OFr corone < L corona, a garland, crown < Gr korōnē, curved object, wreath < IE base * (s)ker , to turn, bend > L curvus, crux] 1. a garland or wreath worn on the head as a sign of honor, victory, etc. 2. a …   English World dictionary

  • Crown — (kroun), v. t. [imp. & p. p. {Crowned} (kround); p. pr. & vb. n. {Crowning}.] [OE. coronen, corunen, crunien, crounien, OF. coroner, F. couronner, fr. L. coronare, fr. corona a crown. See {Crown}, n.] 1. To cover, decorate, or invest with a… …   The Collaborative International Dictionary of English

  • crown — crown; crown·al; crown·ation; crown·et; crown·less; de·crown; dis·crown; un·crown; crown·er; crown·ing; …   English syllables

  • crown — early 12c., royal crown, from Anglo Fr. coroune, from O.Fr. corone (13c., Mod.Fr. couronne), from L. corona crown, originally wreath, garland, related to Gk. korone anything curved, kind of crown. (O.E. used corona, directly from Latin) Extended… …   Etymology dictionary

  • crown — [n1] top; best acme, apex, climax, crest, culmination, fastigium, head, meridian, peak, perfection, pinnacle, roof, summit, tip, top, ultimate, vertex, zenith; concepts 706,836 Ant. bottom, worst crown [n2] tiara for royalty chaplet, circlet,… …   New thesaurus

  • Crown — [ kraʊn; gleichbed. engl.]: svw. ↑ Krone. * * * Crown   [kraʊn; englisch »Krone«] die, / s, Bezeichnung für englische Gold und Silbermünzen zu 5 Shilling. Die goldene Crown (Crown of the double rose) wurde 1526 unter Heinrich VIII. eingeführt und …   Universal-Lexikon

  • crown — s.n. Sticlă cu însuşiri speciale, foarte puţin dispersivă, din care se confecţionează lentile divergente. [pron. craun. / < engl., fr. crown( glass)]. Trimis de LauraGellner, 16.02.2005. Sursa: DN  CROWN [CRAUN] s. n. sticlă crown = sticlă cu …   Dicționar Român

  • crown — [kraʊn] noun 1. the Crown the government of a country such as Britain that is officially led by a king or queen: • The islands are possessions of the Crown. 2. [countable] FINANCE the English name for a unit of currency used in Denmark, Norway,… …   Financial and business terms

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