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level: ACCESS CAVITY PREPARATION

Questions and Answers List

level questions: ACCESS CAVITY PREPARATION

QuestionAnswer
Cavity prepared on the crown of the tooth for the endodontic instruments and materials to gain direct path to the ____, for _____ and ______apex; biomechanical preparation; obturation
The ideal access cavity should have no _____, allow instruments to slide straight into the canals, and provide _____ with minimal possibilities for perforationundercuts;good visibility
Objectives of an access preparation:To create a ____ path to the canal system up to the apexsmooth, straight-line
Objectives of an access preparation: To remove ___ and ___ from the chambercaries; debris
Objectives of an access preparation:3 To allow for complete ____ and ease of ____irrigation; shaping
Objectives of an access preparation: To establish maximum visibility to ____ to the end of the canalgain access up
Ideal access results in:____entry into the canal orifices, with the line angles forming a ___ that drops smoothly into the canal or canalsStraight; funnel
Ideal access results in: _____endodontic resultQuality
"Variation of root canal anatomy is more of a ____than an exception."rule
c-shaped canals are common amongkoreans and chinese
canal atrophy happens more on the ___ rather than ____coronal; apex
KEY OBJECTIVE: Open the canal for easy ___________cleaning, shaping, obturation
main objective is tofind canal orifice
The best area to gain access to the apical foramen is through the ____or ____labial; incisal edge
But why do we put our access to the lingual?ESTHETICS
Main cause of persistent infection is due toinadequate access, Inadequate cleaning and shaping of the canal
common in apical curvatures; how to preven; when using ss always precurve kahit di sigurado; step being createdledges
danger zonebifurcation surface
The success of an Endodontic Treatment rests heavily on the proper access cavity preparation (pyramid of endodontic treatment)obturation, biomechanical preparation, access cavity preparation
STEPS IN ACCESS CAVITY PREPARATION:Needed in diagnosis and assessmentStudy the pre-operative radiograph
STEPS IN ACCESS CAVITY PREPARATION:If there is pulp exposure when doing caries removal, you may proceed locating the canals then continue doing build-upRemove all caries, weak restorations and do crown build-up after locating the canal
point of entrymiddle 3rd
Final outline is based on the______shape of pulp chamber
STEPS IN ACCESS CAVITY PREPARATION:after build up; remove caries muna; expose orifice; build up neatly restore the walls properlyRubber dam isolation
STEPS IN ACCESS CAVITY PREPARATION:Perpendicular to long axis of the tooth (initial access); Reposition bur parallel to long axis of tooth for drop-inUSE # 4 ROUND BUR FOR INITIAL ACCESS THROUGH THE ENAMEL THEN DENTIN
STEPS IN ACCESS CAVITY PREPARATION:Floor will give the canal orifices; Anteriors: lingual shoulder and enamel triangle are our concern to removeWhen the bur “drops-in” unroof the pulp chamber
STEPS IN ACCESS CAVITY PREPARATION:finishing,Refine the access preparation using tapering fissure bur, non-cutting end, by removing lingual cervical bulge, enamel triangle.
REFINE THE ACCESS PREPARATION: lingual shoulderto gain straight line access
REFINE THE ACCESS PREPARATION:counterpart of lingual shoulderCervical bulge
REFINE THE ACCESS PREPARATION: ___ the incisal wall in enamel trianglebevel
STEPS IN ACCESS CAVITY PREPARATION:EXPLORE THE ORIFICE USING ______ OR _______PATHFINDER; ENDODONTIC EXPLORER
IDEAL OUTLINE FORMS(MX):incisorsrounded triangular
IDEAL OUTLINE FORMS(MX):canineovoid
IDEAL OUTLINE FORMS(MX):1st pmoval/slot-shaped
IDEAL OUTLINE FORMS(MX):2nd pmoval
IDEAL OUTLINE FORMS(MX):1st and 2nd Mrounded triangular or rhomboid/trapezoidal
IDEAL OUTLINE FORMS(MN):ANTERIORSrounded triangular
IDEAL OUTLINE FORMS(MN):PMoval
IDEAL OUTLINE FORMS(MN):Mrhomboid/trapezoidal depending on the shape of pulp chamber and number of canal orifices
TRUE OR FALSE: DO NOT LOOK FOR CANAL ORIFICESTRUE
at the end of _____is a canal orificedentinal map
Properly unroofed pulp chamber, lingual shelf, enamel triangle removed: For posteriors, also remove the _____cervical bulge
Properly unroofed pulp chamber, lingual shelf, enamel triangle removed: Remove the ______ to gain straight line accesslingual shelf and cervical bulge
Overextensions of cavity preparation; In cases when you disoriented your bur during acpLedging and gouging
To remove dentinal chips; If there are irregulaties in the pulp chamber, there are chips that will be lodged onto the apical regionrefine access preparation
one of the key factors to the success of RCT.Access cavity preparation
Many problems can be avoided with a _________good access cavity preparation