歯科用セメント

WordNet

make fast as if with cement; "We cemented our friendship"
a building material that is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar
any of various materials used by dentists to fill cavities in teeth
concrete pavement is sometimes referred to as cement; "they stood on the grey cement beside the pool"
something that hardens to act as adhesive material
bind or join with or as if with cement
cover or coat with cement
an appreciable consequence (especially a lessening); "it made a dent in my bank account"
an impression in a surface (as made by a blow) (同)ding, gouge, nick
of or relating to the teeth; "dental floss"
of or relating to dentistry; "dental student"

PrepTutorEJDIC

『セメント』;接合剤,接着剤 / 結合,(友情の)きずな / …‘に'セメントを塗る,'を'セメントで固める / 〈友情・関係など〉'を'固める,堅く結び付ける / 結びつく,固まる
くぼみ,へこみ / …‘を'くぼませる,へこませる / へこむ,くぼむ
(くし・歯車などの)歯
歯の,歯科医の / (音声が)歯音の / 歯音(など)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/16 04:40:11」(JST)

wiki en

Dental cements are hard, brittle materials formed by mixing powder and liquid together. They are either resin cements or acid-base cements. In the latter the powder is a basic metal oxide or silicate and the liquid is acidic. An acid base reaction occurs with the formation of a metal salt which acts as the cementing matrix. Dental cements are used for a variety of dental and orthodontic applications, including use as luting agents, pulp-protecting agents or cavity-lining material. Furthermore, they are used to form an insulating layer under metallic or ceramic restorations, and protect the pulp from injury. This helps in sealing or fixing and casting inlays, onlays or any such substance to both dentin and enamel.^[1] Dental cements which contain an acid component may have an intense sour taste.

Composition and classification

ISO classification Cements are classified on the basis of their components. Generally, they can be classified into categories:

Water-based acid-base cements: zinc phosphate (Zn₃(PO₄)₂), Zinc Polyacrylate(Polycarboxylate), glass ionomer (GIC). These contain metal oxide or silicate fillers embedded in a salt matrix.
Non-aqueous/ oil bases acid-base cements: Zinc oxide eugenol and Non-eugenol zinc oxide. These contain metal oxide fillers embedded in a metal salt matrix.
Resin-based: Acrylate or methacrylate resin cements, including the latest generation of self-adhesive resin cements which contain silicate or other types of fillers in an organic resin matrix.

Cements can be classified based on the type of their matrix:

Phosphate (zinc phosphate, silico phosphate)
Polycarboxylate (zinc polycarboxylate, glass ionomer)
Phenolate (Zinc oxide–eugenol and EBA)
Resin (polymeric)^[2]

Requirements

The requirements for dental cements are that they should:

Be non irritant to pulp and gingiva (gums) and should not support the growth of secondary caries. (This last property is called cariostatic or anticariogenicity).
Form a strong bond with enamel and dentin.
Provide good marginal sealing to prevent marginal leakage.
Be resistant to dissolution in saliva, or in any oral fluid.
Have good aesthetics and good thermal and chemical resistance. (Opacity to X-rays is also preferred for diagnostic purposes).
Be translucent.
Have a low film thickness (ideally 25microns).

Allergy

Dental cement liquids may contain Balsam of Peru, to which some people are allergic.^[3]^[4]^[5]

References

Dentistry portal

^ "dental cement". definition of dental cement. The Free Dictionary by Farlex. 2007. Retrieved 2008-08-11.
^ Spiller, Martin S. (2000). "Composite materials". Doctorspiller.com. Archived from the original on 2008-07-30. Retrieved 2008-08-11.
^ Alexander A. Fisher. Fisher's Contact Dermatitis. Retrieved 2014-04-27.
^ "Balsam of Peru contact allergy". Dermnetnz.org. 2013-12-28. Retrieved 2014-04-27.
^ Sharon E. Jacob, MD (2014-04-15). "Myroxylon Pereirae (Balsam of Peru)". The Dermatologist. Retrieved 2014-04-27.

3. Acid-base Cements (1993) A. D. Wilson and J.W. Nicholson

UpToDate Contents

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1. 小児における歯の損傷の評価およびマネージメント evaluation and management of dental injuries in children
2. 乳幼児に対する予防的デンタルケアおよびカウンセリング preventive dental care and counseling for infants and young children
3. Risks of bisphosphonate therapy in patients with osteoporosis
4. 歯の解剖学的構造および発達 anatomy and development of the teeth
5. Techniques and devices for airway management for anesthesia: Supraglottic devices (including laryngeal mask airways)

English Journal

Dental glass ionomer cement reinforced by cellulose microfibers and cellulose nanocrystals.

Silva RM1, Pereira FV2, Mota FA3, Watanabe E4, Soares SM5, Santos MH1.
Materials science & engineering. C, Materials for biological applications.Mater Sci Eng C Mater Biol Appl.2016 Jan 1;58:389-95. doi: 10.1016/j.msec.2015.08.041. Epub 2015 Aug 29.
PMID 26478325

Calcium silicate/calcium phosphate biphasic cements for vital pulp therapy: chemical-physical properties and human pulp cells response.

Gandolfi MG1, Spagnuolo G2, Siboni F3, Procino A2, Rivieccio V2, Pelliccioni GA3, Prati C3, Rengo S2.
Clinical oral investigations.Clin Oral Investig.2015 Nov;19(8):2075-89. doi: 10.1007/s00784-015-1443-2. Epub 2015 Mar 31.
OBJECTIVES: The aim was to test the properties of experimental calcium silicate/calcium phosphate biphasic cements with hydraulic properties designed for vital pulp therapy as direct pulp cap and pulpotomy.METHODS: CaSi-αTCP and CaSi-DCDP were tested for ion-releasing ability, solubility, water sor
PMID 25820989

Niobium pentoxide as radiopacifying agent of calcium silicate-based material: evaluation of physicochemical and biological properties.

Silva GF1, Tanomaru-Filho M1, Bernardi MI2, Guerreiro-Tanomaru JM1, Cerri PS3,4.
Clinical oral investigations.Clin Oral Investig.2015 Nov;19(8):2015-25. doi: 10.1007/s00784-015-1412-9. Epub 2015 Feb 3.
OBJECTIVES: The physicochemical properties and the tissue reaction promoted by microparticulated or nanoparticulated niobium pentoxide (Nb2O5) added to calcium silicate-based cement (CS), compared to MTA-Angelus(™), were evaluated.MATERIALS AND METHODS: Materials were submitted to the tests of rad
PMID 25644135

Japanese Journal

Effect of ultrashort pulsed laser on bond strength of Y-TZP zirconia ceramic to tooth surfaces

, , ,
Dental
… Disks were luted to dentin using two different resin cement. … Highest bond strength was obtained when zirconia surface was pretreated with Yb-doped fiber-based nanosecond pulsed laser regardless of the resin cement used. …
NAID 130005074673

Cytotoxicity of commonly used luting cements —An in vitro study

, , , , ,
Dental
… The study aimed to 1) evaluate the cytotoxicity of luting cements: Hoffmann's Zinc Phosphate (Hoffmann's ZP), GC Fuji Plus Resin Modified Glass Ionomer (Fuji Plus RMGI) and 3M ESPE RelyX Unicem Resin Cement (RelyX Unicem RC) and 2) test if pre-washing reduces the cements' cytotoxicity. … The means±SD of Cell Survival Ratio (CSR%) were compared among different cement types under two testing conditions, with or without cement pre-washing. …
NAID 130005074668

Fabrication of bone cement that fully transforms to carbonate apatite

, , , ,
Dental
… The objective of this study was to fabricate a type of bone cement that could fully transform to carbonate apatite (CO3Ap) in physiological conditions. … The cement that fully transformed to CO3Ap was fabricated using vaterite, instead of calcite, as a CaCO3 source. … Results of this study showed that it was advantageous to use vaterite to fabricate CO3Ap-forming cement. …
NAID 130005074661