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Root canal preparation with the NiTi systems K3, Mtwo and ProTaper
David Sonntag1, Mareike Ott, Kathrin Kook
1Department of Operative Dentistry, Philipps-University Marburg, Georg-Voigt-Strasse 3, 35033 Marburg, Germany. sonntag@staff.uni-marburg.de
Summary
Rotary root canal preparation using K3, ProTaper, and Mtwo nickel-titanium (NiTi) systems showed comparable results. Mtwo demonstrated fewer canal deviations, while K3 and Mtwo exhibited minimal canal transportation.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Rotary root canal preparation is crucial for effective endodontic treatment.
- Nickel-titanium (NiTi) rotary systems offer improved flexibility and cutting efficiency.
Purpose of the Study:
- To compare the preparation outcomes of K3, ProTaper, and Mtwo NiTi rotary systems.
- To evaluate canal transportation, zips, ledges, and taper in artificial and human root canals.
Main Methods:
- Preparation of 150 artificial curved canals and 60 human mandibular molars using K3, ProTaper, and Mtwo systems.
- Assessment of canal preparation parameters including transportation, zips, ledges, taper, and apical foramen condition.
Main Results:
- Mtwo showed significantly fewer zips compared to K3 and ProTaper in artificial canals.
- K3 and Mtwo exhibited the lowest canal transportation percentages.
- No significant differences in preparation length or apical foramen condition were observed across systems.
- K3 resulted in significantly less taper compared to ProTaper and Mtwo in artificial canals.
Conclusions:
- All three NiTi systems (K3, ProTaper, Mtwo) achieved satisfactory root canal preparation results.
- Mtwo demonstrated superior performance in minimizing canal deviations (zips).
- K3 and Mtwo showed comparable and favorable canal transportation characteristics.
