cement


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cement

 [se-ment´]
1. a substance that produces a solid union between two surfaces.
dental cement any of various bonding substances that are placed in the mouth as a viscous liquid and set to a hard mass; used in restorative and orthodontic dental procedures as luting (cementing) agents, as protective, insulating, or sedative bases, and as restorative materials.

ce·ment

(sē-ment'), [TA]
1. A layer of bonelike, mineralized tissue covering the dentin of the root and neck of a tooth that anchors the fibers of the periodontal ligament. Synonym(s): cementum [TA]
2. In dentistry, a nonmetallic material used for luting, filling, or permanent or temporary restorative purposes, made by mixing components into a plastic mass that sets, or as an adherent sealer in attaching various dental restorations in or on the tooth.
[L. caementum, rough quarry stone, fr. caedo, to cut]

cement

/ce·ment/ (sĕ-ment´)
1. a substance that produces a solid union between two surfaces.
3. cementum.cemen´tal

dental cement  any of various bonding substances that are placed in the mouth as a viscous liquid and set to a hard mass; used in restorative and orthodontic dental procedures as luting (cementing) agents, as protective, insulating, or sedative bases, and as restorative materials.

cement

(sĭ-mĕnt′)
n.
1. Dentistry A substance used for filling cavities or anchoring crowns, inlays, or other restorations.
2. Variant of cementum.
v. ce·mented, ce·menting, ce·ments

ce·ment′er n.

cement

[siment′]
Etymology: L, caementum, rough stone
1 a sticky or mucilaginous substance that hardens into a firm mass and helps neighboring tissue cells stick together.
2 any of a variety of dental materials used to fill cavities or to hold bridgework or other dental prostheses in place.
3 a material used in the fixation of a prosthetic joint in adjacent bone, such as methyl methacrylate.

cement

Dentistry Any of a number of bonding materials used in cavities and restorations

ce·ment

(sĕ-ment') [TA]
1. To affix two surfaces.
2. Material to make a structure adhere to another.
3. dentistry A nonmetallic material used for luting, filling, or permanent or temporary restoration, or as an adherent sealer in attaching various dental restorations in or on the tooth made by mixing components into a plastic mass that sets.
[L. caementum, rough quarry stone, fr. caedo, to cut]

cement

the spongy bone-like substance surrounding the roots of mammalian teeth, which contains COLLAGEN-like fibres to absorb shock and which assists in holding the teeth in sockets. Part of the enamel of the crown of the teeth in some mammals, e.g. ungulates, is also covered by cement.

ce·ment

(sĕ-ment') [TA]
1. In dentistry, nonmetallic material used for luting, filling, or permanent or temporary restorative purposes, made by mixing components into a plastic mass that sets, or as an adherent sealer in attaching various dental restorations in or on the tooth.
Synonym(s): cementum [TA] .
2. A layer of bonelike, mineralized tissue covering dentin of root and neck of a tooth that anchors fibers of the periodontal ligament.
[L. caementum, rough quarry stone, fr. caedo, to cut]

cement,

n a material that produces a mechanical interlocking effect on hardening.
cement, acrylic resin dental,
n a dental cement, dispensed as a powder and a liquid, that is mixed as is any other cement. The powder contains polymethyl methacrylate, a filler, plasticizer, and polymerization initiator. The liquid monomer is methyl methacrylate with an inhibitor and an activator.
cement, copper dental,
n a zinc phosphate cement to the powder of which has been added a copper oxide.
cement, dental,
n the materials used in dentistry as luting agents, bases, and temporary restorations. See also cement, acrylic resin dental; cement, zinc.
cement, dental base,
n an insulating layer of cement placed in the deeper portion of a prepared cavity to insulate the pulp.
cement dressing,
n a postoperative dressing applied after periodontal surgery.
cement dressing, dental, Kirkland,
cement, Kryptex dental,
n.pr See cement, silicophosphate.
cement line,
cement, polycarboxylate,
n a dental cement used for cementation of cast restorations and orthodontic appliances and as bases. Prepared by mixing a zinc oxide powder with a liquid of polycarboxylic acid.
cement, resin,
cement sealer,
n a compound used in filling a root canal; it is inserted in a plastic condition, solidifies after placement, and fills any irregularities in the surface of the canal.
cement, silicate,
n a relatively hard, translucent restorative material used primarily in anterior teeth. Prepared by mixing a liquid and a powder. The powder is an acid-soluble glass prepared by the fusion of CaO, SiO, Al2O3, and other ingredients with a fluoride flux. The liquid is a buffered phosphoric acid solution.
cement, silicious dental,
n See cement, silicate.
cement, silicophosphate
n (Kryptex cement), a combination zinc phosphate and silicate cement. Less translucent, less irritating, and less soluble than silicate and stronger than zinc phosphate cement.
cement, zinc oxide-eugenol dental
n the least irritating of the cements. The powder is essentially zinc oxide with strengtheners and accelerators. The liquid is basically eugenol.
cement, zinc phosphate,
n a material used for cementation of inlays, crowns, bridges, and orthodontic appliances; occasionally used as a temporary restoration. Prepared by mixing a powder and a liquid. The powders are composed primarily of zinc oxide and magnesium oxides. The principal constituents of the liquid are phosphoric acid, water, and buffer agents.

cement

1. a substance that produces a solid union between two surfaces.
2. cementum.

bone cement
usually an acrylic compound used in fracture repair and positioning of bone pins.
dental cement
materials used to affix dental restorations and to fill cavities.
glass ionomer cement
a material used for restorative dentistry. In veterinary dentistry, these are used for treatment of neck lesions on feline teeth and filling access holes after endodontic procedures.
cement lines
basophilic lines in histological sections of bone that represent highly mineralized connective tissue that binds the elements of the bone together.
References in periodicals archive ?
Tajikistan reportedly generated 385,000t of cement last year.
Five cement firms were behind last year's 547,000 tons exports as follows: SCC at 371,000 tons, EPCC (103,000 tons), Jouf Cement Co.
Overview of the concrete and cement market in the US
Al-Qirshi made it clear that the Saudi cement is largely purchased in Hodeida and on the Yemeni-Saudi borders, pointing out that quantities of cement have lately been transferred to Sana'a.
Both Taiwan Cement and Asia Cement say dumping of China-sourced cement has tilted the playing field unfairly for Taiwan's producers and importers over the past two years.
For instance, those concrete cylinders with the most tricalcium aluminate in their cement incurred structural damage sooner than other samples did.
The accord is structured so that Florida and the Gulf region, areas facing cement shortages, will be able to significantly increase their imports of Mexican cement.
I am excited about the potential for increasing the use of foundry sand in cement production," Kurtz said.
On a national level, the burning of tires in cement kilns has drawn objections from environmental groups such as the Sierra Club and Earthjustice.
For the experiments at the ESRF, Cement and Concrete Reference Laboratory (CCRL) cement 133, issued in June 1999, was used.
When surgery is performed, repair of the resulting defect can sometimes be accomplished with hydroxyapatite cement.
The company said the deal will give it its first manufacturing foothold in the Philippines, one of the most promising cement markets in Southeast Asia.