Comparative Evaluation of Crack Propagation During Root Canal Preparation in Primary Molar with Manual Instrumentation, ProTaper Universal and ProTaper Next Rotary File Systems: An in vitro Study
2024

Comparing Crack Formation in Root Canals of Primary Molars

Sample size: 80 publication Evidence: moderate

Author Information

Author(s): Khakhar Pooja MDS, Katge Farhin MDS, Krishna Vamsi MDS, Pradhan Debapriya MDS, Shetty Shilpa MDS, Patil Devendra MDS

Primary Institution: Terna Dental College

Hypothesis

The study aims to compare the occurrence of dentinal microcracks in primary molar root canals prepared using different file systems.

Conclusion

H files may cause more complete cracks in the apical third of primary molars compared to rotary file systems.

Supporting Evidence

  • 20% of root canals prepared with H files showed complete cracks.
  • 5% of root canals prepared with ProTaper Universal showed cracks.
  • 10% of root canals prepared with ProTaper Next showed cracks.
  • Cracks were most significant in the apical third of the H file group.

Takeaway

When dentists clean baby teeth, some tools can cause tiny cracks in the teeth. This study looked at which tools cause the most cracks.

Methodology

The study involved 80 primary molar mesial root canals divided into four groups, each prepared with different file systems, and examined for dentinal microcracks.

Limitations

The study did not simulate the periodontal ligament and used extracted teeth stored in a solution, which may affect results.

Participant Demographics

Extracted primary maxillary and mandibular molars.

Statistical Information

P-Value

0.016

Statistical Significance

p=0.016

Digital Object Identifier (DOI)

10.30476/dentjods.2023.96668.1955

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