Exam (elaborations)
Chapter 02 Oral Environment and Patient Considerations
- Course
- Dental materials
- Institution
- Dental Assisting School
Chapter 02 Oral Environment and Patient Considerations
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Chapter 02: Oral Environment and Patient Considerations1. The safe interaction of a dental material with the rest of the body is defined as the
materials____: Biocompatibility
2. The study of dental materials includes knowledge of ___: The chemical and physical
reactions of the material as well as the ways to manipulate the material. 3. The internal reaction
to an externally applied force is called ___: Stress 4. When increasingly higher forces are
applied to a material it will eventually fracture and the point of fracture is called ___:
Ultimate strength
5. Material subject to repeated stresses such as in mastication may be subject to
fracture due to ___: Fatigue failure
6. Which of the following restorative materials is the most soluble? Amalgam, glass
ionomer, porcelain, acrylic.: Glass ionomer
7. Corrosion is of greatest concern for which of the following restorative materials?
Gold, composite resin, amalgam, porcelain.: Amalgam 8. Surface discoloration of a metal
restoration is called ___: Tarnish
9. Restorative materials with values of thermal conductivity similar to enamel include
___: Composite resin
10. Susan has just had an MOD amalgam placed on tooth #30. This tooth is in contact
with a gold crown on tooth #3. Susan complains of electric shock sensation and metal taste.
This is most likely due to ___: Galvanism
11. Microleakage may be responsible for ___: Recurrent decay, marginal staining and
postoperative sensitivity
, 12. Excessive film thickness of cements may cause ___: Improper seating of the restoration
13. The leakage of fluids and debris extending along the tooth restoration interface is
called ___: Microleakage
14. Colonies of bacteria growing on the teeth are called ___: Dental plaque 15. Color
shades can vary depending on the incident light or source light. This effect is called ___:
Metamerism
16. The term that describes the intensity of a color is ___: Chroma
17. Oral biofilm is ___: A complex organization of microorganisms on oral surfaces and
restorations
18. Adhesion: The act of sticking two things together. In dentistry, it is used to describe the
bonding or cement action process. Chemical adhesion occurs when atoms or molecules of
dissimilar substances bond together and differs from cohesion in which attraction amount
atoms and molecules of like (similar) materials hold them together.
19. Adverse response: An unintended, unexpected, and harmful or unwelcomed response of an
individual to dental treatment or biomaterial
20. Auxiliary materials: Materials used to fabricate and maintain restorations, directly or
indirectly
21. Biocompatible: The property of a material that allows it not to impede or adversely affect
living tissue
22. Biofilm: A complex community of oral microorganisms living on surfaces within the
mouth. When these colonies are found on teeth or restorations, they are commonly called
dental plaque
23. Bonding: To connect or fasten; to bind
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