| acne necrotica | A pyogenic infection involving follicles occurring chiefly on the forehead and temples; involution of the umbilicated and crusting lesions is followed by scar formation. Synonym: acne frontalis, acne necrotica. (05 Mar 2000) |
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| periadenitis mucosa necrotica recurrens | A severe form of aphthae characterised by unusually numerous, large, deep, and frequent ulcers; healing may take as long as six weeks and results in scarring. Synonym: Mikulicz' aphthae, periadenitis mucosa necrotica recurrens, recurrent scarring aphthae, Sutton's disease. (05 Mar 2000) |
| dermatitis nodularis necrotica | A recurrent eruption of vesicles, papules, and papulonecrotic lesions on the buttocks and extensor surfaces of the extremities, accompanied by fever, sore throat, diarrhoea, and eosinophilia; probably a variant of vasculitis, it can be of varying and increasing severity and duration, and can occasionally involve the heart, kidneys, and gastrointestinal tract. Synonym: Werther's disease. (05 Mar 2000) |
| active caries | Microbial-induced lesions of teeth that are increasing in size. (05 Mar 2000) |
| arrested dental caries | Carious lesions that have become inactive and stopped progressing; they may exhibit changes in colour and/or consistency. (05 Mar 2000) |
| buccal caries | Caries beginning with decay on the buccal surface of a tooth. (05 Mar 2000) |
| caries | 1. <pathology> The molecular decay or death of a bone, in which it becomes softened, discoloured and porous. It produces a chronic inflammation of the periosteum and surrounding tissues and forms a cold abscess filled with a cheesy, fetid, puslike liquid, which generally burrows through the soft parts until it opens externally by a sinus or fistula. 2. <dentistry> Another name for cavities due to tooth decay, dental caries. (18 Nov 1997) |
| radiation caries | Caries of the cervical regions of the teeth, incisal edges, and cusp tips secondary to xerostomia induced by radiation therapy to the head and neck. (05 Mar 2000) |
| recurrent caries | Caries recurring in an area due to inadequate removal of the initial decay, usually beneath a restoration or new decay at a site where caries has previously occurred. (05 Mar 2000) |
| cemental caries | <dentistry> Caries of the cementum of a tooth. (05 Mar 2000) |
| mesial caries | Caries on the tooth surface that is directed toward the median plane of the dental arch. (05 Mar 2000) |
| root caries | Dental caries involving the tooth root, cementum, or cervical area of the tooth. (12 Dec 1998) |
| root caries index | The ratio of the number of teeth with carious lesions of the root, and/or restorations of the root, to the number of teeth with exposed root surfaces. (05 Mar 2000) |
| pit and fissure caries | Caries initiated in the areas where developmental pits and fissures are located on the tooth surface. (05 Mar 2000) |
| colourimetric caries susceptibility test | A colourimetric test for determining dental caries activity or susceptibility based on the rate of acid production by acidogenic oral microorganisms (e.g., lactobacillus) in a glucose medium, using bromcresol green as the indicator, and producing a colour change from green to yellow. Synonym: colourimetric caries susceptibility test. (05 Mar 2000) |