Nickel-Titanium Single-file System in Endodontics.

Area of Science:

• Endodontics
• Dental Materials Science

Background:

• Nickel-titanium (NiTi) files are prone to fracture from bending and torsional stresses during root canal treatment.
• Single-use, sterile NiTi instruments are emerging to enhance safety and simplify procedures.
• The One Shape NiTi system represents a new generation of single-use endodontic files.

Purpose of the Study:

• To describe clinical cases treated with the innovative One Shape single-use, single-file NiTi system.
• To evaluate the efficacy and safety of the One Shape system in continuous rotation for root canal shaping.

Main Methods:

• Clinical cases were treated using the One Shape NiTi single-file system in continuous rotation.
• The protocol involves complete root canal shaping after adequate preflaring.
• Case presentations illustrate the application of the system.

Main Results:

• The One Shape system simplifies root canal shaping, requiring only one instrument for many cases.
• After two years of clinical practice, the system demonstrates effectiveness in treating most root canals.
• A low risk of instrument separation was observed with the single-use NiTi file.

Conclusions:

• The One Shape single-use NiTi file simplifies endodontic therapy.
• Adherence to the clinical protocol ensures predictable and favorable outcomes.
• The system offers a reliable and safer approach to root canal shaping, minimizing fracture risks.