AI Article Synopsis
- The study aimed to assess how the curvature of root canals (curved vs. straight) affects cleanliness during root canal treatments when using different types of files (reciprocating and rotary).
- A total of 60 human root canals (30 curved and 30 straight) were examined after being prepared with three different file systems, and cleanliness was evaluated through microscopic analysis of debris.
- Results showed that curved canals had less debris overall, with Reciproc and ProTaper Next files being more effective than ProTaper in straight canals; however, cleaning near the tip of the canal remains challenging regardless of the method used.
Article Abstract
Objective: The aim of this study was to evaluate the influence of root canal curvature (curved and straight root canals), prepared using reciprocating and rotary files, on wall cleanliness during root canal treatments.
Methods: Thirty curved and 30 straight human root canals were prepared using ProTaper (Dentsply), Pro- Taper Next (Dentsply) and Reciproc files (Dentsply) (n=20/group). The roots were split longitudinally and observed using a scanning electron microscope. Six micrographs were obtained at 1, 3 and 5 mm from the working length (WL). Two blinded observers scored the amount of debris. Mean debris scores were compared using a non-parametric the Mann-Whitney U test or Kruskal-Wallis test, and a Bonferroni correction was used for multiple comparisons.
Results: Considering all the shaping systems together, the debris scores were lower in curved root canals (P<0.05). Reciproc and ProTaper Next performed better than ProTaper in straight canals (P<0.05). No difference was found between ProTaper Next and Reciproc regardless of the canal curvature or distance from the WL. Considering all the shaping systems together, cleanliness increased when pulling away from the WL.
Conclusion: The anatomical configuration of the root canal influences the quality of cleaning by shaping instruments regardless of the instrument kinematics during endodontic procedures. In every circumstance, the last millimetres of the apical third remain the most difficult area to clean.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7757941 | PMC |
| http://dx.doi.org/10.14744/eej.2017.16035 | DOI Listing |
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