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Comparison between rotary and manual instrumentation in primary teeth
1Department of Pediatric Dentistry, University of Murcia. Spain. susanacrespoj@hotmail.com
The Journal of Clinical Pediatric Dentistry
|September 5, 2008
Summary
Nickel Titanium (Ni-Ti) rotary files significantly reduce preparation time and improve root canal shape in primary teeth compared to K-files. This enhanced efficiency leads to better outcomes in pediatric endodontics.
Area of Science:
- Pediatric Dentistry
- Endodontics
- Dental Materials Science
Background:
- Root canal preparation in primary teeth requires efficient and effective instrumentation techniques.
- Traditional K-files present challenges in achieving optimal root canal morphology and preparation time.
Purpose of the Study:
- To compare the efficiency of Nickel Titanium (Ni-Ti) rotary files versus K-files in primary teeth root canal preparation.
- To evaluate differences in preparation time and resulting root canal shape.
Main Methods:
- Sixty single-rooted primary teeth were divided into two groups: K-files (n=30) and Ni-Ti rotary files (ProFile 0.04, n=30).
- Preparation times were recorded, and silicone impressions were used to assess root canal shape.
- Data were analyzed using t-tests and Chi-square tests.
Main Results:
- Ni-Ti rotary files significantly reduced preparation time compared to K-files (p=0.005).
- The ProFile system resulted in a significantly more favorable, conical canal taper than K-files (p=0.002).
Conclusions:
- Ni-Ti rotary instrumentation offers significant advantages over manual K-files for primary teeth.
- Reduced working time enhances patient cooperation, while improved canal taper facilitates better root canal filling and clinical success.
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