Frequency of positive aspirations in anesthesia of the inferior alveolar nerve by the direct technique

Objectives: Evaluate the frequency of positive aspirations and complications resulting from anesthesia of the inferior alveolar nerve by the direct technique. Study design: 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 th…