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Intraligamentary anesthesia: a double-blind comparative study.

E Kaufman, L LeResche, E Sommers

    Journal of the American Dental Association (1939)
    |February 1, 1984
    PubMed
    Summary
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    Xylocaine 2% with epinephrine provided the longest pulpal anesthesia duration. Dental local anesthetic duration can be precisely controlled for specific procedures.

    Area of Science:

    • Dentistry
    • Anesthesiology
    • Pharmacology

    Background:

    • Intraligamentary injection is a technique for local anesthesia in dentistry.
    • The duration and extent of pulpal and soft tissue anesthesia are critical for dental procedures.

    Purpose of the Study:

    • To compare the duration of pulpal anesthesia for three local anesthetic agents using intraligamentary injection.
    • To evaluate subjective discomfort, injection pain, and soft tissue anesthesia.
    • To determine if anesthetic duration can be tailored to dental procedures.

    Main Methods:

    • Double-blind study involving three local anesthetic agents: Xylocaine 2%, Xylocaine 2% with epinephrine 1:50,000, and Marcaine 0.5 with epinephrine 1:200,000.
    • Intraligamentary injection technique used for all agents.

    Related Experiment Videos

  • Electrical tooth pulp stimulation to measure pulpal anesthesia duration.
  • Subjective assessments for discomfort and pain, comparison with local infiltration.

    • Main Results:

    • Xylocaine 2% with epinephrine 1:50,000 yielded the longest pulpal anesthesia.
    • Anesthetic decay was less abrupt with Xylocaine 2% with epinephrine.
    • No significant differences in subjective discomfort or injection pain were found between agents or compared to local infiltration.
    • Soft tissue anesthesia extent correlated with vasoconstrictor levels.

    Conclusions:

    • The duration of pulpal and soft tissue anesthesia can be effectively controlled by the choice of local anesthetic and its concentration.
    • Anesthetic effects can be customized to meet the specific requirements of dental procedures.