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Dental Materials Final Exam
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Dental Materials Final Exam
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Dental Materials Final Exam passedTo seat a permanent crown the operator may select... Answer: Zinc Oxyphosphate & Ketac Cem
Zinc Oxyphosphate Cement Answer: Mixed on parchment paper or Glass Slab
What is a tooth colored, fluoride releasing material Answer: Glass Ionomer Cement
T or F Zinc Oxyphosphate cement is used to seat temporary crowns. Answer: False
Cements are not usually selected as a permanent restoration because.. Answer: Low wear
resistance
Low strength
Higher solubility
What contaminates the setting of the glass ionomer material? Answer: Water
Rely X is what type of cement Answer: Permanent Cement
What does the final product of durelon look like? Answer: shiny, creamy, light pink
ZOP (Contains? Measuring?) Answer: contains magnesium oxide, does not have a specific
measuring device/scoop, should be divided into small increments prior to mixing
ZOP is what type of cement? Answer: Permanent Cement
,What astringent is used to control bleeding during crown prep procedure? Answer: Epinephrine
A fixed dental prosthesis Answer: replaces a missing tooth
Who can legally permanently cement a crown or bridge in a patients mouth Answer: Dentist
How is Ketac Cem cured? Answer: Self cured
Pontic Answer: artificial tooth that replaces a missing natural tooth
Which dental cement bonds to dentin, resists recurrent decay and is kind to the pulp? Answer:
Glass Ionomer
Which cement exhibits an exothermic reaction during mixing? Answer: Zinc Phosphate (ZOP)
T or F ZOP cement can be used as a protective base under amalgam. Answer: True
T or F Polycarboxolate cement can be mixed for use as a base under a restoration Answer: True
What are the core build up materials? Answer: Fugi II
Miracle Mix
What can be used as a permanent luting cement or as a base? Answer: Zinc Oxyphosphate
, How are the ADA national standards for dental materials controlled? Answer: - ADA deals with the
physical, mechanical, and chemical properties of products.
- Undergoes voluntary and strict testing,
- Awards "seal of acceptance" for consumer products (toothbrushes, tooth paste, floss, etc)
What criteria must all materials meet (ADA)? Answer: - Manufacture must submit ingredient list and
other product info
- Supply objective data from studies that support products safety, effectiveness, and promotional claims
- Trials must be in strict compliance with ADA guidelines
- provide evidence of purity of product
- Submit all product packaging and labeling and accuracy and truthfulness in advertising
-Makes recommendations based on research
What other agency's have authority over dentistry? Answer: FDA
EPA
OSHA
What does the FDA do? Answer: regulatory authority over dental devices and materials, classified as
degree of risk to public, regulate over the counter products sold to the public,
- regulates manufacturing practices to ensure safety and effectiveness of products
-reviews product levels for accurate info and appropriate directions for use
What does the EPA do? Answer: - Laws to protect the environment
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