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ProDesign Logic Files Effect on Apical Foramen Wear and Shape Transformation After Foraminal Enlargement.

Miguel Christian Castillo Marin¹, Amjad Abu Hasna^1,2, Marcos Frozoni³

¹Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University (ICT-UNESP), São José dos Campos 12245-000, SP, Brazil.

Dentistry Journal

|October 25, 2024

Summary

ProDesign Logic files significantly enlarged apical foramina, causing notable wear and transforming them into a round shape. This effect was observed when files were used at tooth length (TL) or 1 mm beyond.

Keywords:

apical foramen foraminal enlargement root canal preparation

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Area of Science:

Endodontics
Dental materials science

Background:

Apical foramen preparation is crucial in endodontic treatment.
Understanding the wear and shape transformation caused by rotary files is essential for predictable outcomes.

Purpose of the Study:

To evaluate the impact of ProDesign Logic files (45.01 and 50.01) on apical foramen wear and shape.
To compare the effects of using these files at tooth length (TL) versus 1 mm beyond TL.

Main Methods:

Sixty human premolars were divided into five groups (n=12).
Groups involved foraminal enlargement using ProDesign Logic 45.01 or 50.01 files at TL or 1 mm beyond TL, with one control group.
Scanning electron microscopy assessed apical foramen morphology; statistical analysis included t-tests and non-parametric tests.

Main Results:

All enlargement groups showed significant differences (p < 0.01) in worn apical foramen area compared to the control.
Foraminal enlargement resulted in significant shape transformation, predominantly yielding round-shaped foramina.

Conclusions:

ProDesign Logic 45.01 and 50.01 files induce significant apical foramen wear and roundness when used at TL.
These findings highlight the shaping capabilities and potential for apical transportation of these rotary files.