CIT Equipment Operation & Maintenance 2

Question 1

What is the primary purpose of a torque-limiting handpiece in implant surgery?

Accepted Answer

To prevent exceeding the maximum insertion torque for implants

Answer

Torque-limiting handpieces are designed to disengage or slip when a preset torque value is reached, protecting implants from being overtightened during placement.

Question 2

Which type of bur is most appropriate for the initial cortical bone penetration during implant site preparation?

Accepted Answer

Twist drill (pilot drill)

Answer

A pilot (twist) drill is used for initial cortical penetration to establish the osteotomy direction and depth before sequential enlargement drills are used.

Question 3

At what minimum irrigation flow rate is saline typically recommended during implant osteotomy preparation to prevent bone overheating?

Accepted Answer

50 mL/min

Answer

A minimum of 50 mL/min of sterile saline irrigation is generally recommended during osteotomy preparation to keep bone temperature below 47°C and prevent thermal necrosis.

Question 4

When sterilizing a piezoelectric surgical unit's handpiece, which method is contraindicated?

Accepted Answer

Dry heat oven at 160°C

Answer

Dry heat at 160°C can damage the piezoelectric crystals and plastic components within the handpiece; autoclave or ETO are manufacturer-approved methods.

Question 5

How often should implant motor handpiece bearings be lubricated per manufacturer standard protocols?

Accepted Answer

Before every sterilization cycle

Answer

Handpiece bearings should be lubricated before each autoclave cycle because the sterilization process removes lubricating oils and can cause bearing damage if the instrument is run dry.

(CIT) Certified Implantology Technician Practice Test

(CIT) Certified Implantology Technician Practice Test

CIT Equipment Operation & Maintenance 2