Ch 46, 47, 48

1. suspention of particles in a dispersion medium such as water; its two phases are sol and gel
2. a thin layer of composite resin or porcelain that is bonded or cemented to a prepared facial surface for an esthetic appearance
4. loss of water, causing something to shrink
7. substance that modifies or increases the rate of a chemical reaction
9. absorption of water, causing as object to swell
10. gelatin-type material derived from seaweed used as a thickener
12. bringing a material to a desired consistency
14. material having elastic properties from rubber
15. change in temperature that causes the reversible hydrocolloid material to transform from one physical state to another
17. dental lab device that simulates the movement of the mandible and temporomandibular joint when the dental cast is attached to it
18. placement of a reinforcement pin in the cavity preparation to secure and support a tooth restoration

1. another name for caries, which is a decayed area of a tooth
3. space or gap between two teeth, commonly seen in maxillary central incisors
5. a term used to describe the repair of a tooth with the use of a dental material
6. irreversible hydrocolloid material used from taking preliminary impressions
8. dental lab machine with various cutting instruments, grinding stone, and polishing wheels used for dental appliances
11. the surface of the cavity preparation perpendicular to the pulp of a tooth
13. a mineral used in the formation of dental stone
16. accurate replica of the prepared portion of a tooth used in the lab for the fabrication of a cast restoration