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Research Article
- Analysis of the reciprocating kinematics of the VDW Silver Reciproc, E-Connect Pro, Ecom, and Endopen endodontic motors: an in vitro experimental study
- Cristielly França, Juliana D. Bronzato, Dieimes Braambati, Adriana de-Jesus-Soares, Carla C. R. B. Félix, Michelle A. N. S. Ferreira, Marcos Frozoni
- Received August 18, 2025 Accepted October 12, 2025 Published online January 20, 2026
- DOI: https://doi.org/10.5395/rde.2026.51.e5 [Epub ahead of print]
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Abstract
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ePub - Objectives
This study aimed to evaluate the actual parameters of four endodontic motors, each adjusted for reciprocating motion, and compare them to the manufacturers’ declared values.
Methods
The motors used were the VDW Silver Reciproc (VDW GmbH), E-Connect Pro (MK Life), Ecom (Woodpecker), and Endopen (Schuster Woodpecker). A custom optical target was attached to the motor contra-angle, the movements were recorded with a high-resolution camera, and the images were analyzed. Engagement, disengagement, net angles, and speed for each operation cycle, duration of clockwise (CW) and counter-clockwise (CCW) movement, duration of standstill after CW and CCW movement, and the number of cycles to complete a full rotation were analyzed. The data were statistically analyzed at a significance level of 5%. The replicability of all reciprocal parameters analyzed was statistically different from that reported by the manufacturers.
Results
There was no statistically significant difference between the VDW Silver Reciproc, Ecom, and Endopen for the engagement angle. The E-Connect Pro was the least reliable at the 150°/30° settings for both angle parameters. There was no significant difference between the set and actual cycle net angles for the VDW Silver Reciproc (p = 0.493). While the actual values for the Ecom and E-Connect Pro were significantly higher than the set (p < 0.001), the actual values for the Endopen were significantly lower than the set (p < 0.001).
Conclusions
Experiments on four commercially available reciprocating endodontic motors revealed that the actual motor values differed significantly from the set values.
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