Question 618 · LDEK · Access and canal preparation
Indicate true statement regarding the step-back technique used in endodontics:
- A. the canal is prepared from the apex toward the crown using instruments of progressively smaller diameter.
- B. the canal is prepared simultaneously along its entire length.
- C. instruments of increasing size are used with gradual shortening of the working length.
- D. instruments of increasing size are introduced to the full working length.
- E. the technique requires the use of rotary instruments.
Hint
The name describes the steps backward from the apex: what happens to file size and to the length each larger file reaches?
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Conservative dentistry
- Which of the following endodontic irrigants should not be used immediately after NaOCl?
- Choose false statements regarding the root cementum, cementum:
- Radioactive triggers are factors which are harmful towards the pulp and other tooth structures. Choose a complication which will not occur during…
- Etiopathogenesis of endodontium and apical tissue illness, inflammatory and destructive processes are regulated by many cell and humoral factors…
- Regressive changes are a result of slow atrophy of tissues and cells. The causes of such changes are usually metabolism and eating disorders. What…
- Choose local factors responsible for pulp degeneration: