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Related Experiment Videos

Injection needles for dental local anesthesia

P van der Bijl1

  • 1Department of Oral Medicine and Periodontics, Faculty of Dentistry, University of Stellenbosch, Tygerberg, South Africa.

Compendium of Continuing Education in Dentistry (Jamesburg, N.J. : 1995)
|November 1, 1995
PubMed
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This review examines how the physical traits of disposable dental needles impact local anesthetic delivery, potentially causing needle breakage, injection pain, and patient harm.

Area of Science:

  • Dentistry
  • Anesthesiology
  • Biomedical Engineering

Background:

  • Single-use disposable dental needles are standard for local anesthetic administration.
  • Needle properties can influence patient experience and safety during dental procedures.

Purpose of the Study:

  • To review the physical characteristics of disposable dental needles.
  • To analyze the role of these properties in needle breakage, injection pain, and patient morbidity.

Main Methods:

  • Literature review of studies on dental needle physical properties and clinical outcomes.
  • Analysis of reported incidents related to needle breakage and patient complications.

Main Results:

  • Specific physical characteristics, such as gauge, length, and bevel design, are associated with needle performance.

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  • Suboptimal needle properties can increase the risk of breakage during injection.
  • Needle characteristics significantly correlate with reported pain levels and patient morbidity.

    • Conclusions:

    • Understanding needle physical properties is crucial for minimizing risks associated with local anesthesia.
    • Improvements in needle design and material science can enhance patient safety and comfort during dental procedures.
    • Further research into needle-tissue interaction is warranted to optimize anesthetic delivery.