Since the late 1940s,______ burs have been used for cavity preparation.
A) steel
B) tungsten carbide
C) molybdenum
D) palladium
Correct Answer:
Verified
Q3: The handpiece that can operate both forward
Q4: The _ handpiece supplies a water coolant,because
Q5: The ultrasonic handpiece is used for:
A)cavity preparation.
B)polishing.
C)scaling.
D)adjusting
Q6: The parts of a rotary instrument are
Q7: Which type of bur is used to
Q9: A dental handpiece is identified as a
Q10: A _-shaped diamond rotary instrument provides access
Q11: When cleaning a dental handpiece,it is important
Q12: The prophylaxis angle attaches to the _
Q13: The high-speed handpiece uses _ burs.
A)friction-grip
B)straight
C)latch
D)laboratory
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