4. Outcome Studies

Question 1

Cognitive dissonance (triad: debride, disinfec, obtur)

Answer 1

Seltzer/Bender

Question 2

Success criteria: clin+Rg+histo

Answer 2

Seltzer/Bender

Question 3

Healed, Healing, Diseased, Functional

Answer 3

Friedman

Question 4

POOR PAST AM

Answer 4

Crump

Question 5

Failure 60% prosth (crn fx), 30% perio, 10% endo

Answer 5

Vire

Question 6

PARL decr. success by 10-25%

Answer 6

deChevigny/Friedman (93% vs 82% NSRCT)

Question 7

Implant vs Endo

Answer 7

Iqbal/Kim NSD survival

Doyle same failure 6%, longer time to function.

Hannahan/Eleazer NSD survival, Implant greater intervention (12.4% vs 1.4%)

Question 8

Healing time

Answer 8

Andreasen 1-4 yrs

Orstavik Peak heal year 1, up to 4

Question 9

Histo vs Rg success

Answer 9

Brynolf 93% inflammation+ when PARL-

Walton 26% inflammation+ when PARL-

Question 10

Outcome Studies

Answer 10

Question 11

Healing Factors: PARL & size, fill length, apical prep, coronal restr, tth location.

Answer 11

Ng

Friedman

Question 12

Prognostic factors - Culture

Answer 12

Peters, Wesselink - NSD

Sjogren - 94% vs 68%

Question 13

Prognostic factors - PARL

Answer 13

deChevigny/Friedman (93% vs 82% NSRCT) decr 10-25%

Sjogren 1990: 96% vs 86%

Question 14

Length of Fill

Answer 14

Sjogren - Short 0-2mm 94% vs long 76% vs too short 68%

Chugal 1-mm loss WL = 14% incr. failure

Schaeffer - meta-A 0-1 mm short > 1-3 mm short > beyond apex

Ng - fill within 2 mm

Swartz/Skidmore - Overfill 4x higher failure

Question 15

visit - NSD

Answer 15

Ng, Figini, Sathorn (but greater pain)

Question 16

Less flareup with 1 appt

Answer 16

Eleazer, Southard, Roan (I/D abscess)

Question 17

Multi-appt better

Answer 17

Trope, Nair, Siqueira, Sjogren