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A Pilot Study: Evaluating Disposable Syringes Compared to Non-Disposable Syringes for Dental Training.

Robert Glickman1, Tara Byrd2, Marci H Levine1

  • 1Department of Oral and Maxillofacial Surgery, NYU College of Dentistry, New York, New York, USA.

Journal of Dental Education
|February 7, 2025
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Summary

Dental students preferred non-disposable syringes despite disposable ones being safer. Familiarity and stability favored non-disposable syringes, while disposable ones had aspiration issues. Early curriculum introduction could improve disposable syringe usability.

Keywords:
clinical skillsclinical traininglocal anesthesiaoral surgerysyringes

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Area of Science:

  • Dental Anesthesia Delivery
  • Medical Device Safety
  • Clinical Education

Background:

  • Needlestick injuries are common with non-disposable syringes due to manual needle handling.
  • Disposable syringes feature protective sheaths to minimize needle exposure during use.

Purpose of the Study:

  • To compare disposable and non-disposable syringes for local anesthesia administration in dental students.
  • To evaluate student and faculty experiences with both syringe types during clinical practice.

Main Methods:

  • A pilot study involved two groups of third-year dental students (D3) alternating between disposable (N=67) and non-disposable (N=66) syringes over two 4-week sessions.
  • Local anesthesia was administered to live patients under faculty supervision.
  • Surveys were completed by students and faculty post-session to capture their experiences.

Main Results:

  • Two needlestick injuries occurred with non-disposable syringes; none with disposable syringes, though no statistically significant difference in exposures was found.
  • Students found non-disposable syringes easier to use and were more likely to prefer them due to stability and familiarity.
  • Disposable syringes were easier to assemble/disassemble but perceived as less stable during aspiration.

Conclusions:

  • Dental students and faculty preferred non-disposable syringes, citing familiarity and stability, despite potential safety benefits of disposable types.
  • Dissatisfaction with disposable syringes stemmed mainly from the aspiration system and lack of experience.
  • Integrating both syringe types early in dental curricula and providing faculty training could enhance usability and safety.