Frequency of positive aspirations in anesthesia of the inferior alveolar nerve by the direct technique.
OBJECTIVE
Evaluate the frequency of positive aspirations and complications resulting from anesthesia of the inferior alveolar nerve by the direct technique.


METHODS
The sample was composed of 138 anesthetic injections applied with Duflex syringes with reflux. The anesthesia was applied in patients of both sexes of various ages for procedures in which such anesthesia would be necessary.


RESULTS
The results showed 4.3% of positive aspirations in vivo. When the percentages of positive aspiration on the right and left sides were compared, no significant association was found. A greater number of positive aspirations was observed in the 15-30-year-old age group. It is emphasized that the only type of complication associated with positive aspirations was hematoma.


CONCLUSIONS
The percentage of positive aspirations from inferior alveolar nerve block by the direct technique is significant, and for the most part they do not appear in the form of a thin thread, requiring great care on the part of the person applying the anesthesia.
Vasconcelos
Belmiro Cavalcanti do Egito
BC
Oral and Maxillofacial Surgery in School of Dentistry, University of Pernambuco, Caaragibe, Pernambuco. belmiro@pesquisador.cnpq.br
Freitas
Karia Coelho de Miranda
KC
Canuto
Marta Rejane
MR
D000293:Adolescent; D000328:Adult; D000368:Aged; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008340:Mandibular Nerve; D008875:Middle Aged; D009407:Nerve Block / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D013396:Suction; D013594:Syringes