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Comparing Warm and Cold Gutta-Percha Techniques for Root Canal Filling: An In Vitro Study.

B Swathika1, Syed Nahid Basheer2, S Sriram3

  • 1Department of Conservative Dentistry and Endodontics, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Puducherry, India.

Journal of Pharmacy & Bioallied Sciences
|September 30, 2024
PubMed
Summary

Warm gutta-percha obturation offers superior volumetric filling and more uniform distribution within root canals compared to cold techniques. This study highlights its advantages for effective endodontic therapy.

Keywords:
Cold techniqueGutta-perchaendodonticsin vitro studyobturationwarm technique

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Area of Science:

  • Endodontic Therapy
  • Dental Materials Science

Background:

  • Gutta-percha is a standard material for root canal obturation in endodontics.
  • Warm and cold gutta-percha techniques are widely used, each presenting distinct benefits and drawbacks.

Purpose of the Study:

  • To compare the efficacy of warm versus cold gutta-percha obturation techniques.
  • To evaluate obturation quality, void formation, and adaptation to canal walls.

Main Methods:

  • Twenty extracted human teeth with single root canals were divided into warm and cold obturation groups.
  • Radiographic imaging and micro-computed tomography (micro-CT) were used to assess obturation quality and material distribution.

Main Results:

  • Both techniques showed effective obturation with comparable void formation and adaptation.
  • Micro-CT revealed warmer gutta-percha provided more uniform distribution and higher volumetric filling.
  • Warm gutta-percha exhibited superior flowability and adaptation to canal irregularities.

Conclusions:

  • Warm gutta-percha obturation is advantageous for volumetric filling and distribution within the root canal space.
  • The warm technique demonstrates superior adaptation to canal irregularities compared to the cold technique.