Obturation Flashcards
2 things preparation does
- facilitates cleaning
2. controls movement of warm gutta percha
Why cant leave canal open?
superhighway, not 100% sterile
which condensers used
5/7 and 9/11
Correct sealer consistency rule?
1” draw for 10 seconds
Gutta percha tip size correlates to?
tip correlates to file size
Sizes for non-standardized
med and fine-med, tip not sized
3 determinants for cone fit
visual, tactile (tugback), radiographic (distance from apex)
2 conditions for tugback?
- reaches full dist
2. only tugback at apex
Objective of continuous wave technique?
carry a wave of warm gutta percha along legnth starting coronally and ending in apical cork
Hot tip inserted to within what dist of working length?
5-7mm
Backfilling done with? Use what needle?
hot shot, 23 guage
3 steps of backfilling?
Insert, inject, condense
4 steps of hot tip
heat cool remove condense