| secondary renal calculus | A calculus associated with infection and/or obstruction, usually composed of struvite (magnesium ammonium phosphate). Synonym: infection calculus. (05 Mar 2000) |
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| pulp calculus | A calcified body found in the pulp chamber of a tooth; may be composed of irregular dentin (true denticle) or due to ectopic calcification of pulp tissue (false denticle). Synonym: denticle, pulp calcification, pulp calculus, pulp nodule, pulp stone. Origin: endo-+ G. Lithos, stone (05 Mar 2000) |
| serumal calculus | A greenish or dark brown calcareous deposit on the tooth, usually apical to the gingival margin. Synonym: haematogenetic calculus. Synonym: subgingival calculus. (05 Mar 2000) |
| nasal calculus | <medicine> A concretion formed within the cavities of the nose. Origin: Rhino-, -lith. Source: Websters Dictionary (01 Mar 1998) |
| staghorn calculus | A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. Synonym: branched calculus, coral calculus, dendritic calculus. (05 Mar 2000) |
| nephritic calculus | An obsolete term for renal calculus. (05 Mar 2000) |
| struvite calculus | A calculus in which the crystalloid component consists of magnesium ammonium phosphate. (05 Mar 2000) |
| subgingival calculus | Calcareous deposit found on the tooth apical to the gingival margin. Synonym: serumal calculus. (05 Mar 2000) |
| supragingival calculus | Calcified plaques adherent to tooth surfaces coronal to the free gingival margin. Synonym: salivary calculus. (05 Mar 2000) |
| dendritic calculus | A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. Synonym: branched calculus, coral calculus, dendritic calculus. (05 Mar 2000) |
| dental calculus | <dentistry> Hard, stonelike concretion, varying in colour from creamy yellow to black, that forms on the teeth or dental prostheses through calcification of dental plaque. (12 Dec 1998) |
| infection calculus | A calculus associated with infection and/or obstruction, usually composed of struvite (magnesium ammonium phosphate). Synonym: infection calculus. (05 Mar 2000) |
| intestinal calculus | A concretion in the bowel, either a coprolith or an enterolith. (05 Mar 2000) |
| oxalate calculus | A hard urinary calculus of calcium oxalate; some are covered with minute sharp spines that can abrade the renal pelvic epithelium, whereas others are smooth. (05 Mar 2000) |
| tonsillar calculus | A calcareous concretion in a distended tonsillar crypt. Synonym: tonsillar calculus, tonsillith. Origin: tonsillo-+ G. Lithos, stone (05 Mar 2000) |