Question 156 · LDEK · Complications and errors
During root canal irrigation at the tooth 11 with sodium hypochlorite in a 33-year-old patient a sudden swelling of the subnasal region appeared, accompanied by a severe pain which prevented the continuation of the treatment on the day of the visit. What are the ways of avoiding such situations?
1) insert the needle maximally to half of the root canal length;
2) ensure the outflow of the applied irrigant from the canal;
3) adjust the needle diameter to the diameter of the root canal so that the needle closes tightly the lumen of the root canal;
4) slowly administer the irrigating solution into the root canal;
5) during irrigation procedure use endodontic needles with a lateral opening.
The correct answer is:
2) ensure the outflow of the applied irrigant from the canal;
3) adjust the needle diameter to the diameter of the root canal so that the needle closes tightly the lumen of the root canal;
4) slowly administer the irrigating solution into the root canal;
5) during irrigation procedure use endodontic needles with a lateral opening.
The correct answer is:
- A. 1,2,3.
- B. 1,2,4.
- C. 1,3,5.
- D. 2,4,5.
- E. 3,4,5.
Hint
Think about how irrigant gets forced beyond the apex and which measures lower apical pressure.
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