MJDF Part 1 Practice Test
MJDF Endodontics and Pulp Therapy 2
Which of the following best describes the 'working length' in root canal treatment?
Select your answer
A
The total length of the root from crown to apex as measured on a radiograph
B
The distance from a coronal reference point to the working terminus, typically 0.5-1mm short of the radiographic apex
C
The length of the root canal file required to reach the apical foramen exactly
D
The depth of the pulp chamber measured from the occlusal surface
Hint
