Management of Retreatment

Question 1

how removal of insoluble resins

Answer 1

ultrasonic

Question 2

how to remove GP

Answer 2

handfiles with solvent, protaper or reciproc

Question 3

how to remove soluble pastes

Answer 3

hanf files and solvent, protaper or reciproc

Question 4

removing GP

Answer 4

poorly condensed = easier, hedstoem files
well condensed = harder, need to create space

Question 5

solvent use

Answer 5

eucalyptus oil can be used to dissolve materials with C files

Question 6

protaper retreatment procedure

Answer 6

1. select lowest speed that effectively engaged obturation
2. gently press D1 into GP and remove frequently to clean flutes
3. contunue with D1 until obturation material removed from coronal 1/3 of canal
4. auger obturation material from middle 1/3 canal with D2
5. remove material from apical 1/3 with D3, stopping 2-3mm short of apex

Question 7

reciproc retreatment procedure

Answer 7

very efficient, removes bulk
use solvent like chloroform/eucalyptus oil
use R25
increase apical enlargement