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[Aspiration in intraligamentous anesthesia]

D V Medvedev, A Zh Petrikas, M V Diubaĭlo

    Stomatologiia
    |May 30, 2013
    PubMed

    Insights

    Positive aspiration during intraligamentous anesthesia (ILA) in dental students is a strong indicator of effective pain relief. This study found that 94.4% of successful ILA cases showed positive aspiration, suggesting a vascular mechanism.

    Area of Science:

    • Dentistry
    • Anesthesiology
    • Pharmacology

    Context:

    • Intraligamentary anesthesia (ILA) is a dental injection technique.
    • Assessing the efficacy and safety of ILA is crucial for pain management.
    • The aspiration test (AT) is a standard safety measure in injections.

    Purpose:

    • To determine the frequency of positive aspiration during ILA.
    • To evaluate the depth of pulp anesthesia in the lower first molar (L6) using electrotesting.
    • To investigate the relationship between positive aspiration and effective anesthesia in ILA.

    Summary:

    • A prospective, randomized, crossover study involved 36 dental students receiving ILA with 4% articaine and epinephrine in L6.
    • Anesthesia was achieved in 114 injections (average 3.2 per molar), with electrotesting confirming pulpal analgesia.
    • Positive aspiration occurred in 94.4% of successful ILA cases, correlating with effective anesthesia (100-200 mka).
    • Two cases (5.6%) achieved anesthesia with negative aspiration, indicating a potential variation in the mechanism.

    Impact:

    • This study is the first to investigate the phenomenon of aspiration in ILA.
    • Positive aspiration appears to be a reliable indicator of effective intraligamentary anesthesia.
    • The findings suggest a vascular mechanism underlying the efficacy of ILA.

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