Question 118 · LDEK · Anesthetic techniques
Indicate the correct sentences concerning the intra oral infraorbital nerve block:
1) place the index finger of the left hand on the inferior bony margin of the orbit in the line of the pupil, when the patient is asked to look straight forward;
2) before the insertion of the needle, disinfection of the mucosa is a must, regardless of the patient’s oral hygiene;
3) needle is inserted in the fornix of the vestibule, around 0.5 cm from the gingival margin, just above the lateral incisor;
4) needle is advanced backwards, upwards and outwards, maintaining the contact with the bone;
5) there is no need for aspiration before depositing the anesthetic;
6) during the administration of anesthetic we ask the patient not to close his/her eyes.
The correct answer is:
2) before the insertion of the needle, disinfection of the mucosa is a must, regardless of the patient’s oral hygiene;
3) needle is inserted in the fornix of the vestibule, around 0.5 cm from the gingival margin, just above the lateral incisor;
4) needle is advanced backwards, upwards and outwards, maintaining the contact with the bone;
5) there is no need for aspiration before depositing the anesthetic;
6) during the administration of anesthetic we ask the patient not to close his/her eyes.
The correct answer is:
- A. 1,3,4.
- B. 1,2,3,4.
- C. 1,2,4,5.
- D. 1,3,4,6.
- E. 1,3,4,5,6.
Hint
Go through each step: palpating the orbital rim, preparing the mucosa, puncture site, needle direction and the safety rule before injecting.
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