Shaping Ability of 2Shape and WaveOne Gold Files Using Cone-Beam Computed Tomography

Area of Science:

• Endodontics
• Dental Materials Science
• Biomedical Engineering

Background:

• Root canal preparation is crucial for endodontic success.
• Nickel-titanium rotary instruments have advanced canal preparation techniques.
• Evaluating new instrumentation systems is essential for optimizing clinical outcomes.

Purpose of the Study:

• To compare the shaping ability of WaveOne Gold (WOG) and 2Shape rotary systems.
• To assess apical transportation, centering ability, and dentin removal volume.
• To utilize cone-beam computed tomography (CBCT) for quantitative analysis.

Main Methods:

• Thirty extracted mandibular teeth were instrumented with 2Shape and WOG systems.
• Pre- and post-instrumentation CBCT scans were performed.
• Measurements included dentin wall thickness, removed dentin volume, apical transportation, and centering ratio.

Main Results:

• No statistically significant differences were found between WOG and 2Shape.
• Both systems exhibited comparable results in terms of dentin removal volume.
• Apical transportation and centering ratio showed no significant variations between the groups.

Conclusions:

• Both 2Shape and WOG systems effectively preserve original canal anatomy.
• Neither system eliminated excessive dentin during shaping and cleaning.
• Rotary and reciprocating motion systems yield similar outcomes regarding canal angle alteration.