Week 4 Dental Cements, Bases and Liners
Order by
24 terms
Terms | Definitions |
|---|---|
 acid-base | most of the chemistry of dental cements are governed by a simple _______-________ reaction. |
| zinc oxide | this powder is one of the oldest dental cements and is the only insoluble, nontoxic, reactive oxide that can react with an acid; possesses some antibacterial properties. |
| glass ionomer, resin, and resin ionomer | what are the three different types of glass powders that can be used as dental cements? |
| glass ionomer cement | this glass powder bonds CHEMICALLY to calcium and releases FLUORIDE. however it can be acidic and cause pulpal irritation; absorbs water |
| resin cement | this glass powder bonds MECHANICALLY and is extremely strong; they bond to both the tooth and restoration |
| resin ionomer cement | this glass powder is a contemporary alternative today and is a combination of properties of both resin and glass ionomer cements. releases fluoride. |
| Eugenol | this cement liquid is also known as "oil of cloves" and can cause pulpal necrosis |
| composite | eugenol must never be used in any ____________ restoration procedure. it inhibits free radical polymerization essential to the setting. |
| phosphoric acid | this cement liquid is very irritating to the soft tissues |
| polyacrylic acid | this cement liquid is very viscous and contain carboxyl group that bond calcium to the tooth structure. |
| luting agent, pulp protection, tempoary restoration, cavity sealers. | what are some of the uses of a dental cement? |
| ZOE, Zinc Phosphate, and Zinc Polycarboxylate | what are three metal oxides/acid liquids used as a luting cement? |
| Zinc Oxide and Eugenol | this is a weak luting cement that causes temporary cementation of indirect restorations |
| Zinc phosphate | this is a very strong luting cement that dissolves solwly and is used for permanent cementation of indirect restorations. |
| Zinc Polycarboxylate | this is a low to moderate strength luting cement and combines the ease of handling a polymer with the moderate strength of zinc oxide. |
| primary consistency | this consistency is when luting cements have a thin viscosity to fill this space (i.e. honey) |
| secondary consistency | this requires the addition of powder to increase strength and bring the cement to a thick, putty-like consistency. |
| particle size, temp, and cement powder/liquid ratio | what are 3 factors that can influence the consistency of mixed cement? |
| varnish | this is a thin layer if material placed on the floor and walls of a preparation to seal dentinal tubules and minimize microleakage; THEY EVAPORATE QUICKLY |
| copalite | _______ cannot be used under resins or in bonding procedures |
| liners | _____ serve 3 functions: 1) change the chemistry of the tooth surface, 2) irritate the pulp to form secondary dentin and 3) to bond filling material to a tooth |
| Dycal | ______ has a pH of 9 and 11 which makes it highly bactericidal. |
| Bases | ______ are mixed to a secondary consistency and are thicker and stronger than liners. they provide thermal insulation. |
| liner--base--varnish | what is the order of placement? |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.