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Exploring a Paradigm Shift in Primary Teeth Root Canal Preparation: An Ex Vivo Micro-CT Study
Dora Schachter1, Sigalit Blumer1, Sara Sarsur1
1Department of Pediatric Dentistry, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel.
Children (Basel, Switzerland)
|May 27, 2023
Summary
Rotary instrumentation significantly enhances root canal preparation efficiency in primary teeth compared to traditional manual K-file methods. This study suggests a shift towards rotary systems for improved pediatric endodontic treatment outcomes.
Area of Science:
- Pediatric Dentistry
- Endodontics
- Dental Materials Science
Background:
- Traditional hand instrumentation is standard for primary tooth pulpectomy.
- Rotary instrumentation offers a potentially safer and more effective alternative.
Purpose of the Study:
- To compare the efficacy of manual versus rotary instrumentation for root canal preparation in primary molars.
- To evaluate residual dentin volume, preparation time, and procedural errors using micro-computed tomography (micro-CT).
Main Methods:
- Thirty-six extracted primary molars were divided into manual (K-files), Kedo-S, and ProTaper Gold rotary groups.
- Micro-CT scans assessed residual dentin volume before and after preparation.
- Preparation time and procedural errors were recorded.
Main Results:
- Rotary instrumentation (Kedo-S and ProTaper Gold) removed significantly more root canal material than manual K-file instrumentation (p = 0.025).
- Manual preparation took over twice as long as rotary methods (13.14 min vs. 4.62-6.45 min).
Conclusions:
- Rotary instrumentation is more efficient for root canal preparation in primary teeth.
- These findings may encourage a shift from manual to rotary techniques in pediatric endodontics.
