Mechanical properties analysis of medical endodontic instruments based on parameterization

Area of Science:

• Biomaterials Science
• Mechanical Engineering
• Dental Materials

Background:

• Endodontic instruments are vital for root canal treatment.
• Understanding the link between structural design and mechanical properties is key for improving instrument durability and efficacy.
• Nickel-titanium alloys are commonly used due to their superelasticity.

Purpose of the Study:

• To investigate the relationship between structural parameters (cross-section, pitch, taper) and the mechanical properties (bending, torsion) of nickel-titanium endodontic instruments.
• To validate the use of finite element analysis (FEA) for simulating instrument performance.
• To identify optimal structural parameters for maximizing the service life of endodontic instruments.

Main Methods:

• Selected the T02004B25 nickel-titanium endodontic instrument for analysis.
• Performed bending and torsion tests.
• Utilized finite element simulation analysis based on parametric design principles.
• Modeled instruments with varied cross-sections, pitches, and tapers.

Main Results:

• Finite element simulation analysis proved to be a feasible method for studying endodontic instruments.
• Mechanical properties, including bending and torsion resistance, varied significantly with different structural parameters.
• Parametric design enabled the creation and analysis of instruments with diverse structural configurations.

Conclusions:

• The structural parameters of endodontic instruments directly influence their mechanical properties.
• Tailoring structural parameters is essential for optimizing the performance and extending the service life of nickel-titanium endodontic instruments.
• Further research into optimal parameter combinations is recommended for enhanced clinical application.