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ENDDNT
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FINALS
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MEDICAMENT
level: MEDICAMENT
Questions and Answers List
level questions: MEDICAMENT
Question
Answer
PURPOSE OF INTRACANAL MEDICAMENTS: to reduce inter-appointment ___
pain
PURPOSE OF INTRACANAL MEDICAMENTS: continuous supply of ____, restrict bacterial and prevent regrowth
antimicrobial agents
PURPOSE OF INTRACANAL MEDICAMENTS: to render the canal contents ___
inert
NaOCl:Require dilution with _____ before use as an endodontic irrigant
0.5% sodium bicarbonate
IODINE SOLUTION: a __-minute irrigant— dentine contact time on dentine infected with E. faecium was sufficient to prevent growth
10
IODINE SOLUTION: In practice- of __ iodine in potassium iodide or ____can be used
5%; Churchill's solution
The presence of smear may decrease the effectiveness of the irrigant and it should therefore be used after smear removal.
IODINE SOLUTION
has good substantivity and has the ability to adhere to hydroxyapatite crystals in dentine
0.2% chlorhexidine gluconate solution (CHX)
It been postulated that it could potentially remain active following root canal treatment
0.2% chlorhexidine gluconate solution (CHX)
used to infected smear layer and open dentinal tubules has been shown to aid irrigant penetration and bacterial killing
EDTA
recommended as an irrigant in techniques such as photoactivated disinfection, where EDTA may have a detrimental effect.
CITRIC ACID
Helps assess whether irrigants and medicaments have been Successful in reducing or eliminating the bacterial load
CULTURING
RECOMMENDED TECHNIQUES: Use ___ as routine irrigant
EDTAC
RECOMMENDED TECHNIQUES: PURPOSE: flushing, chelation, prevent build-up of smear layer, aid in canal negotiation.
EDTAC
RECOMMENDED TECHNIQUES: Use NaOCl in every canal at some stage of the preparation, preferably once the ____
canal has been widened sufficiently
RECOMMENDED TECHNIQUES: PURPOSE: flushing, organic matter solvent, antibacterial, some bleaching action.
NaOCl
RECOMMENDED TECHNIQUES: do a final flush with EDTAC (___ throughout the prep).
10-12ml
RECOMMENDED TECHNIQUES: EDTAC FINAL FLUSH PURPOSE: final flushing, ensure smear layer removal, ____ lowers surface tension (which aids drying).
ctrimide
INTERNAL RESORPTION: use more ___ to completely dissolve organic tissue in the defect.
NaOCl
CALCIFIED CANALS: seal ____within tooth between visits (minimal action and self-limiting)
EDTAC
CHANGE OF DRESSING APPOINTMENT: only ____is required.
EDTAC
OBTURATION APPOINTMENT: ____ only
EDTAC
Contain tissue fixative agents
ANTISEPTICS
TRUE OR FALSE: No antiseptic satisfy the ideal properties of medicaments except CaOH
TRUE
Have nonspecific action and can destroy host tissues in addition to microbes
PHENOLS AND ALDEHYDES
CaOH: Can be mixed 7:1 with ____ to make it radiopaque
barium sulphate
first line medicament for teeth with necrotic pulp tissue and bacterial contamination
CaOH
Powerful oxidizing agents that disrupt bacteria
Iodine in Potassium Iodide
Broad spectrum and comparatively low toxicity
Iodine in Potassium Iodide
PROBLEM WITH IODINE IN POTASSIUM IODIDE
HIGHLY ALLERGENIC
IODINE IN POTASSIUM IODIDE: Effectiveness of the solution is short-lived and is not suitable for longer than _ days.
2
Antiinflammatory - reducing postoperative pain by suppressing inflammation
CORTICOSTEROID
beneficial for Irreversible pulpitis and acute apical periodontitis
CORTICOSTEROID
Been used as an adjunct in periodontal treatment.
Antibiotics
It has been advocated for use as a root canal irrigant
Antibiotics
For symptomatic teeth and concurrent endodontic and periodontal lesions due to the corticosteroid component
Ledermix
Provides a dual therapeutic effect; Triamcinolone and a demeclocycline
Ledermix
Antibiotic combined with anti-inflammatory
Ledermix
Advocated for root canal disinfection due to its reportedly superior antibiofilm properties and ability to disinfect dentinal tubules compared to calcium hydroxide
Triple Antibiotic Paste (TAP)
Triple Antibiotic Paste (TAP) contains
metronidazole, ciprofloxacin, and minocycline
TAP was only effective against E. faecalis biofilm and not against ____ biofilm
Candida albicans
Risks: dentine discoloration, antibiotic resistance and potential detriment to stem cells
Triple Antibiotic Paste (TAP)
GUIDE TO MEDICAMENT USE:ELECTIVE THERAPY/PULPECTOMY/PAINFUL TOOTH
Ledermix for 2 weeks minimum prior to obturation.
GUIDE TO MEDICAMENT USE:ASYMPTOMATIC PULPLESS (NO COMPLICATION)
Ledermix/CaOH 50:50, or CaOH alone for min of 2 weeks
GUIDE TO MEDICAMENT USE:PULPLESS WITH AAA/APA
Ledermix for 2 weeks, then 50:50 LDRMX/CaOH or CaOH alone for 2-3 months prior to obturation.
GUIDE TO MEDICAMENT USE:LARGE PERIAPICAL LESION/ENDO-PERIO LESION/EXUDATE
ledermix paste for 2 weeks, the LDRMX/CaOH. Review every 3 months, redress PRN. Until healing is evident radiographically
GUIDE TO MEDICAMENT USE:INTERNAL RESORPTION
ledermix 2 weeks, the CaOH for 2 weeks. Redress several times at 2 weekly intervals. Notice if the resorption is progressive.
TIME OF USE OF MEDICAMENTS(minimum time): ledermix
10-14 DAYS
TIME OF USE OF MEDICAMENTS(minimum time): caoh
3-4 WEEKS
TIME OF USE OF MEDICAMENTS(minimum time): 50:50 LDRMX/CAH
3-4 WEEKS
TIME OF USE OF MEDICAMENTS(max time): ledermix
6-8 WEEKS
TIME OF USE OF MEDICAMENTS(max time):caoh
3-5 MONTHS
TIME OF USE OF MEDICAMENTS(max time): 50:50 LDRMX/CAH
3-4 MONTHS