Canal Obturaiton...1 - Visit Endo Flashcards
1
Q
What is the goal of Obturation?
A
- Replicate rot canal system
- Maintain materials inside
- Tight seal to fluids, bacteria, byproducts
- Seal in bacteria
- Seal out nutrients
2
Q
How long should you disinfect GP prior to use?
A
6% NaOCl Immersion - 60 seconds
3
Q
What is the material breakdown of Gutta Percha?
A
- Zinc Oxide: 56 - 75%
- Gutta - Percha: 19 - 22 %
- Metal Sulfates: 2 - 17%
- Waxes & Resins: 1 - 4%
4
Q
What is the goal of Root Canal Cement (Roth Sealer)?
A
- Binding Agent
- Lubricant
- Filler
- Seals areas not filled by GP
- Seals accessory canals
5
Q
What is the material breakdown of Root Canal Cement (Roth Sealer)?
A
Powder
- Zinc Oxide: 42%
- Staybelite Resin: 27%
- Bismuth Subnitrate: 15%
- Barium Sulfate: 15%
- Sodium Borate Anhydrous: 1%
Liquid
- Eugenol: 100%
6
Q
What is an alternative to GP?
A
Resilon
- GP Alternative
- Synthetic polyester…
- Bioactive glass, radiopaque fillers
- Dual-cure resin composite sealer
- “Monoblock” bonds to dentin (all materials bonded)
- Handling similar to GP
7
Q
What are 4 criteria we assess for ideal endodontic obturation?
A
- Legnth
- Taper
- Density
- Apical Width
8
Q
What factors usually lean a dentist to completing an Endo in one visit?
A
- Pt unable to return
- Medically impaired
- Vital
- Estehtic Concerns
- Negative per pathosis
9
Q
What factors usually lean a dentist towards a multi-visit endo?
A
- Canal system infection
- Most retreatments
- Acute apical symptoms
- Weeping canal
- Difficult case
- Sinus tract
