C4: Dental Scalers And Hand Held Instruments

Question 1

Ultrasonic Scaler

Answer 1

• used to remove calculus above the gum line

- high frequencies vibrate tip to clean tooth surface

Question 2

Jack Hammer Effect

Answer 2

Direct contact with the tip of the scaler that causes damage to the enamel of the tooth

Question 3

3 Components of Air Driven Units

Answer 3

• air power source
• plumbing (distilled water)
• hand pieces

Question 4

Dental Unit Components

Answer 4

• low speed port (prophylaxis angle/polisher)
• high speed port (sonic scaler attached)
• air/water source

Question 5

Burs

Answer 5

• section teeth into as many sections as there are roots before pulling
• 3 types: straight grip (low speed), latch grip (low speed), friction grip (high speed)

Question 6

-Prophylaxis Angles

Answer 6

• hold prophy cup used to polish teeth

- thermal damage caused when too much time or pressure used on tooth

Question 7

Water Delivery Hoses

Answer 7

• Drained daily and flushed with 10% bleach solution, let stand 5 minutes and flush with water
• empty and rinse tanks with cholorhexadine daily