| COT | colony overlay test; content of thought; contralateral optic tectum; critical off-time |
|---|---|
| CR Length | Crown to Rump Length |
| CRL | Crown-Rump Length |
| AlCr | aluminum crown |
| CCEI | Crown-Crisp Experimental Index |
| CCEI | Crown Crisp Experiential Index |
|---|---|
| CRL | Crown rump length |
| CHL | Crown-heel length |
| CR | Crown-rump |
| denture, overlay | Removable prosthesis constructed over natural teeth or implanted studs. (12 Dec 1998) |
|---|---|
| overlay | 1. To lay, or spread, something over or across; hence, to cover; to overwhelm; to press excessively upon. "When any country is overlaid by the multitude which live upon it." (Sir W. Raleigh) "As when a cloud his beams doth overlay." (Spenser) "Framed of cedar overlaid with gold." (Milton) "And overlay With this portentous bridge the dark abyss." (Milton) 2. To smother with a close covering, or by lying upon. "This woman's child died in the night; because she overlaid it." (1 Kings III. 19) "A heap of ashes that o'erlays your fire." (Dryden) 3. To put an overlay on. Origin: Overlaid; Overlaying. Source: Websters Dictionary (01 Mar 1998) |
| overlay denture | A complete denture that is supported by both soft tissue and natural teeth that have been altered so as to permit the denture to fit over them. The altered teeth may have been fitted with short or long copings, locking devices, or connecting bars. Synonym: bar joint denture, hybrid prosthesis, overdenture, telescopic denture. (05 Mar 2000) |
| emotional overlay | The emotional or psychological concomitant of an organic disability. (05 Mar 2000) |
| anatomical crown | The portion of a tooth covered with enamel. Synonym: corona dentis, anatomical crown. (05 Mar 2000) |
| artificial crown | A fixed restoration of the major part of the entire coronal part of a natural tooth; usually of gold, porcelain, or acrylic resin. (05 Mar 2000) |
| bell-shaped crown | A crown of a tooth with an exaggerated occlusogingival contour; human deciduous molars typify the bell-shaped crown. (05 Mar 2000) |
| radiate crown | A fan-shaped fibre mass on the white matter of the cerebral cortex, composed of the widely radiating fibres of the internal capsule; a single layer of columnar cells derived from the cumulus oophorus, which anchor on the pellucid zone of the oocyte in a secondary follicle. Synonym: radiate crown. (05 Mar 2000) |
| ciliary crown | The circular figure on the inner surface of the ciliary body, formed by the processes and folds (plicae) taken together. Synonym: ciliary crown, ciliary wreath. (05 Mar 2000) |
| clinical crown | That part of the crown of a tooth visible in the oral cavity. Synonym: corona clinica. (05 Mar 2000) |
| crown | The part of a tree or shrub above the level of the lowest branch. (09 Oct 1997) |
| crown angulation | <dentistry> A tooth movement in which the root of the tooth is tipped forward or backward to correct the angle of the crown. (08 Jan 1998) |
| crown cavity | The space within the crown of a tooth continuous with the root canal. Synonym: cavitas coronalis, cavum coronale. (05 Mar 2000) |
| crown flask | A sectional metal boxlike case in which a sectional mold is made of plaster of Paris or artificial stone for the purpose of compressing and curing dentures or other resinous restorations. Synonym: crown flask. (05 Mar 2000) |
| crown gall | Gall or tumour, found in many dicotyledonous plants, caused by the bacterium Agrobacterium tumefaciens. (18 Nov 1997) |
| overlay crown |
a cast metal artificial crown fitted over a prepared natural crown to support the walls around an inlay that are not strong or thick enough to withstand occlusal stresses, while leaving exposed the labial surface of the natural crown for esthetic purposes.
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