Endodontic & Restorative

True or false? Nickel-Titanium is an alloy that can exist in two crystal structures: austenite and martensite

• True

• False

High flexibility of a NiTi endodontic shaping file is important because:

• Less force between the file and the canal wall

• File remains centred in the canal

• Less likely to cause straightening of the canal and other procedural errors

• All of the above

Which one of the following is NOT an advantage of rotary NiTi files?

• Less fatigue on the operator

• Better conservation of dentine

• They can be used in all cases

• Tapered canal shape facilitates more effective irrigation

Which are the Dentsply Sirona NiTi Shaping focus brands?

• Protaper Gold, Protaper Next and WaveOne Gold

• Protaper Gold, and WaveOne Gold

• ProTaper Next and WaveOne Gold

• ProTaper Next and WaveOne

Does WaveOne Gold have a variable taper design?

• No, only ProTaper has a variable taper design

• Yes, it does

• Only for sizes Primary, Medium and Large

WaveOne Gold is focused on:

• Simplicity and Confidence

• Performance and Versatility

• Simplicity and Versatility

The DIFFERENCE between the X-Smart and X-Smart Plus motors is the following:

• No foot pedal is needed with X-Smart Plus

• Both continuous and reciprocating motions are available on X-Smart Plus

• A miniature contra-angle head is used with X-Smart Plus

• There are dedicated buttons for changing the speed on X-Smart Plus

An Apex locator can measure the distance between the file tip and the apex.

• True

• False

Which of the following is NOT a feature of Propex Pixi?

• Easy to store in even the smallest drawer

• Same measuring accuracy as the Propex II device

• Large colour screen

• Works without being connected to the mains

1.     Which of the following apex locators has the highest measurement precision?

• a.     Propex Pixi

• a.     Propex II

• a.     Propex IQ

• d. All of the above devices provide the same measurement precision