Instruments and Instrumentation Quiz

What is the main purpose of using burs in dentistry?

• To prevent clogging

• To clean the field

• To generate heat

• To control the temperature of the surface

Which type of restoration is more suitable for the use of abrasives?

• Bonded/composite restoration

• Amalgam restorations

• Crown restorations

• Veneer restorations

What is the function of a coolant during cavity preparation?

• Increase friction between tool and tooth

• Generate heat

• Control the temperature of the surface

• Produce a rougher surface

What is the temperature range of the thermal tolerance zone of dentin?

• Above 150°F

• 50-85°F

• 85-132°F

• 132-150°F

Which abrasive particle size provides the smoothest surface finish?

• Ultrafine

• Fine

• Medium

• Coarse

What is the main factor affecting cutting efficiency?

• Type of restoration

• Shape and size of the diamond points

• Abrasive particles size

• Surface roughness

What is the best way to minimize the heat generated during cutting?

• Use efficient coolant

• Avoid using coolant

• Apply excessive pressure

• Use a dull cutting tool

Which type of tissue is more effectively cut by burs?

• Enamel

• Dentin

• Bone

• Muscle

What is the main function of water during cavity preparation?

• Produce a rougher surface

• Clean the field

• Control the temperature of the surface

• Increase friction between tool and tooth

What is the primary purpose of using a coolant during cutting?

• Generate heat

• Control the temperature of the surface

• Clean the field

• Increase friction between tool and tooth