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Related Experiment Videos

Effect of three sterilization techniques on finger pluggers.

W D Luper1, F C Eichmiller, W Doblecki

  • 1Endodontics Department, Naval Dental Clinic, Bremerton, WA.

Journal of Endodontics
|August 1, 1991
PubMed
Summary

Clinicians can generally use steam autoclave, dry heat, or bead sterilization for dental finger pluggers without compromising their fatigue life. Most sterilization methods showed equal or improved fatigue performance compared to non-sterilized controls.

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Area of Science:

  • Dental materials science
  • Biomaterials engineering
  • Sterilization technologies

Background:

  • Dental finger pluggers are critical instruments in endodontic procedures.
  • Sterilization is essential to prevent cross-contamination but may affect instrument integrity.
  • Understanding the impact of sterilization on fatigue life is crucial for instrument longevity and patient safety.

Purpose of the Study:

  • To evaluate the effect of three common sterilization methods (steam autoclave, dry heat, bead sterilization) on the fatigue life of dental finger pluggers.
  • To compare the fatigue performance of sterilized pluggers against non-sterilized controls across different sizes.
  • To provide evidence-based recommendations for safe and effective sterilization protocols for dental finger pluggers.

Main Methods:

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  • Four sizes of finger pluggers (A, B, C, D) were tested, with 90 units per size divided into subgroups.
  • Subgroups were subjected to 1, 8, or 15 cycles of steam autoclave, dry heat, or bead sterilization.
  • Control groups (non-sterilized) were used for comparison, and all pluggers underwent cyclic bending until fracture to determine fatigue life.

Main Results:

  • Only size A finger pluggers subjected to eight cycles of steam autoclave showed a statistically significant decrease in fatigue life compared to controls.
  • Nine other subgroups exhibited fatigue lifetimes statistically equal to or greater than the non-sterilized control group.
  • The majority of sterilization cycles and methods did not negatively impact the fatigue life of the tested finger pluggers.

Conclusions:

  • Clinicians can confidently use steam autoclave, dry heat, or bead sterilization for dental finger pluggers.
  • Most tested sterilization methods maintain or enhance the fatigue life of finger pluggers.
  • The findings support the use of standard sterilization protocols without compromising the structural integrity and performance of dental finger pluggers.