| LEC | leukoencephalitis; lower esophageal contractility |
|---|---|
| LEL | lower explosive limit; lowest effect level |
| LEP | lethal effective phase; lipoprotein electrophoresis; low egg passage; lower esophagus |
| LES | Lambert-Eaton syndrome; Lawrence Experimental Station [agar]; local excitatory state; Locke egg seru... |
| LESP | lower esophageal sphincter pressure |
| dental cement | <dentistry> Bonding substances available in the form of two components that are mixed together immediately before use, setting to a hard mass. They are used in restorative and orthodontic dental procedures as luting (cementing) agents, as bases, and as restorative materials. Resins and polymers used as restorative materials are usually called restorative resins rather than cements. (12 Dec 1998) |
|---|---|
| dental cementum | <dentistry> The bonelike rigid connective tissue covering the root of a tooth from the cementoenamel junction to the apex and lining the apex of the root canal, also assisting in tooth support by serving as attachment structures for the periodontal ligament. (12 Dec 1998) |
| dental clasps | <dentistry> Metal devices for fastening together two or more parts of dental prostheses for stabilizing or retaining them by attachment to abutment teeth. For a precision attachment for a partial denture denture precision attachment is available. (12 Dec 1998) |
| dental clinics | Facilities where dental care is provided to patients. (12 Dec 1998) |
| dental cord | <dentistry> An aggregation of epithelial cells forming the rudimentary enamel organ. (05 Mar 2000) |
| dental crest | <dentistry> The maxillary ridge on the aleveolar processes of the maxillary bones in the foetus. Synonym: crista dentalis. (05 Mar 2000) |
| dental crypt | <dentistry> The space filled by the dental follicle. Enamel crypt, the narrow, mesenchyme-filled space between the dental ledge and an enamel organ. Synonym: enamel niche. (05 Mar 2000) |
| dental curing | <dentistry> The process by which plastic materials become rigid to form a denture base, filling, impression tray, or other appliance. (05 Mar 2000) |
| dental cuticle | The primary enamel cuticle, consisting of two extremely thin layers (the inner one clear and structureless, the outer one cellular), covering the entire crown of newly erupted teeth and subsequently abraded by mastication; it is evident microscopically as an amorphous material between the attachment epithelium and the tooth. Synonym: cuticula dentis, adamantine membrane, dental cuticle, membrana adamantina, Nasmyth's cuticle, Nasmyth's membrane, skin of teeth. (05 Mar 2000) |
| dental debonding | <dentistry> Techniques used for removal of bonded orthodontic appliances, restorations, or fixed dentures from teeth. (12 Dec 1998) |
| dental device | <dentistry> Devices used in the home by persons to maintain dental and periodontal health. The devices include toothbrushes, dental flosses, water irrigators, gingival stimulators, etc. (12 Dec 1998) |
| dental disinfectant | <dentistry> Chemicals especially for use on instruments to destroy most pathogenic organisms. (boucher, clinical dental terminology, 4th ed) (12 Dec 1998) |
| dental drill | <apparatus, dentistry> A rotary power-driven instrument into which cutting points may be inserted. See: handpiece. (05 Mar 2000) |
| dental dysfunction | <dentistry> Abnormal functioning of dental structures. (05 Mar 2000) |
| dental enamel | <dentistry> A hard thin translucent layer of calcified substance which envelops and protects the dentin of the crown of the tooth. It is the hardest substance in the body and is almost entirely composed of calcium salts. Under the microscope, it is composed of thin rods (enamel prisms) held together by cementing substance, and surrounded by an enamel sheath. (12 Dec 1998) |