Pit and Fissure Pt 1
In the United States, standards for dental materials are developed and administered by the:
A. FDA
B. FBI
C. OSHA
D. ADA
ADA (American Dental Association)
When applying pit and fissure sealants, a dental hygienist will condition the tooth with an acid etchant. Which of the following does this procedure serve to increase?
a. strength
b. retention
c. permeability
b. retention
What are the indications for a pit and fissure sealant application?
Moderate to high risk of caries
Incipient caries in enamel only
Anatomic configuration prone to caries
Patients who suffer from xerostomia or ortho TX
If an acid etch is used in preparation for a sealant, then the most effective etch is achieved using which of the following?
a. acetic acid
b. phosphoric acid
c. citric acid
d. boric acid
b. phosphoric acid
List the number one reason for failure of pit and fissure sealants?
Contamination – failure to properly isolate the tooth.
Moisture/saliva
True or False: The best type of retention seen with sealants is Mechanical.
True, Mechanical
In sealant placement, etching functions to do which of the following?
Produce micropores in the enamel surface
List the order for sealant placement:
Clean, rinse, isolate, dry, etch, rinse, dry, apply sealant, evaluate, check occlusion
Penetration of sealant resins depends on each of the following properties EXCEPT one. Which one is this EXCEPTION?
a. surface tension
b. viscosity
c. wettability
d. curing mechanism
D. Curing Mechanism
Which of the following is true regarding sealant placement success?
A. Caries must be present
B. Incipient caries will cause the sealant to fail
C. Placement technique is the main cause of retention issues
D. Sealants are considered a secondary preventive strategy
C. Placement technique is the main cause of retention issues