Intracanal medicaments Flashcards
1
Q
When are intracanal medicaments used?
A
- when tx cannot be completed in a single visit
2
Q
Single vs Multi visit
A
- agreement is lacking
- vital cases are often more suitable for single visits
- non- vital are more complex with greater resistance to endo tx
3
Q
What are intra-canal medicaments?
A
- placed inside RC between tx appt and to destroy microorganisms and prevent re-infection
- proper and careful canal preparation will minimise/ eliminate number of bacteria left within RCS
- important to use medicament between visits which will reduce and prevent multiplication of any bacteria that do remain
- reduce inflammation and exudate
- control of RR, ie: non-setting CaOH
4
Q
Anti-microbial paste
A
- paste containing corticosteroid and tetracycline
- during management of hot pulp, ie: when LA doesnt help discomfort
- reduction in pulpal inflammation for the following visit
- effective for 5-7 days
- ask pt to return to visit after 1 week
5
Q
Non- setting CaOH
A
- gold standard of intracanal medicament
- pH 12.5
- high pH contributes to antibacterial activity
- bacterial reduction after inter- appt dressing
- prolonged anti-bacterial activity
- hydrolysis of lipopolysaccharide -> reducing inflammatory potential
- disrupt organic tissue
- combi with NaOCl improved cleaning ability
6
Q
Inter-appt disinfection
A
- canal should be completely filled with CaOH paste
- come into direct contact with bacterial cell wall to be effective
- may interact with vital structures and lead to parasthesia
- ie: Ultracal, Optident with small disposable syringe
7
Q
Temporary dressing
A
- must effectively seal RC from contamination between visits
- ie: Coltosol, GI cements, Cavit
- if not, then bacteria can enter RCS from oral cavity again
8
Q
Why GIC?
A
- it will persist hard wearing
9
Q
Faulty temp filling
A
- major cause of coronal leakage
- may be due to inadequate thickness of material, improper placement of material and failure to evaluate occlusion after placement
