17. Instrumentation

Question 1

ISO standardization

Answer 1

Ingle

Question 2

Serial stepback

Answer 2

Schilder

Question 3

Deeper spreader/stepback

Answer 3

Allison/Walton

Question 4

Anti-curvature filing

Answer 4

AbouRass

Question 5

Stepdown

Answer 5

Goerig

Question 6

Crowndown

Answer 6

Morgan/Montgomery

Question 7

Balanced force

Answer 7

Roan

Question 8

Passive stepback

Answer 8

Torabinejad

Question 9

Mand incisors st line access incisal edge

Answer 9

Mauger

Question 10

NiTi concept

Answer 10

Walia

Question 11

NiTi manufacturer

Answer 11

Ben Johnson

Question 12

NiTi-R more centered

Answer 12

Short/Baumgartner

Question 13

Coronal preflare allows detect AC

Answer 13

Stabholz

Question 14

Coronal preflare less separation

Answer 14

Roland

Question 15

Patency file improve success

Answer 15

Ng

Question 16

Glide path reduce separation

Answer 16

Peters

Question 17

33% canal walls untouched by NiTi-R

Answer 17

Peters

Question 18

Reciprocating sys greater extru

Answer 18

Burklein

Question 19

Separated instru factors

Answer 19

Panitvisai (parl, stage, location)

Question 20

Sep instru prognosis

Answer 20

Spili

Crump/Natkin

Question 21

Instru fx rate

Answer 21

Parashos 3-5%, 3 uses without defects

Iqbal - NiTi 7x more likely than SS to fx (1.7% vs 0.25%)

Question 22

Instru fx factors

Answer 22

Haikel (cyclic fatigue/radius of curv)

Sattapan (torsional > cyclic)

Question 23

Heat treated better properties

Answer 23

Lopes (R>M>NiTi)

Question 24

NiTi properties

Answer 24

Haapasalo (Austenite >> Martensite when stressed, M = superelasticity. Heat M >> A)

Question 25

Autoclave no effect on strength

Answer 25

Hicks

Question 26

Use up to 3 molars (10 canals)

Answer 26

Yared

Question 27

SAF

Answer 27

Metzger