MCQ Flashcards
What is patency filing?
Passing a small hand file thorugh the apical constriction and apical foramen to contact the apical tissues
What is filing?
A dynamic movement of a hand file to optimally effect canal debridement; predominantly a push- pull (rasping), rotational (reaming) movement or a combination of the two. Engine-driven filing motions can be rotary, reciprocating or oscillating
What is recapitulation?
Using a small hand file to ensure patency and dislodge debris into solution prior to introducing a larger file into the root canal system. Essential to prevent blockages or iatrogenic damage to canals
What is Balanced force technique?
60 degree clockwise rotation, maintaining apical preessure rotate anticlockwise at least 60 but not more than 120 degrees, repeating the cycle 3 times
What is the modified double flare technique?
The process involves development of an initial coronal flare, followed by an apical flare. These distinct regions of preparation, upon intersection create a continuous taper. Preparation involves the use of Gate Glidden drills and stainless steel K-files
What is watch winding?
- back and forward (clcokwise/anticlockwise) oscillation of 30 - 60 degrees, used with small diameter files
What is reciprocation?
a file working motion consisting of a counterclockwise (cutting direction) and a clockwise motion (release of the instrument) whereby the angle of the counter-clockwise direction is greater than the angle of the reverse direction