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Kinematics of "Adaptive Motion" under Constant Torque Values
Ekim Onur Orhan1, Duygu Bahadır2, Ozgur Irmak3
1Translational Medicine Research and Clinical Center, Eskişehir Osmangazi University, Eskişehir, Turkey; Computer-Aided Diagnosis and Treatment Application and Research Center in Healthcare, Eskişehir Osmangazi University, Eskişehir, Turkey; Department of Endodontics, Faculty of Dentistry, Eskişehir Osmangazi University, Eskişehir, Turkey.
Journal of Endodontics
|January 9, 2022
Summary
This study analyzed adaptive motion kinematics under varying torque loads. A 100-gcm load resulted in unpredictable, mixed-phase kinematics, unlike consistent dual or quaternary phases observed with no or 200-gcm loads.
Area of Science:
- Biomedical Engineering
- Dental Mechanics
Background:
- Complex adaptive motion in endodontics remains poorly understood.
- Investigating kinematics under varying torque is crucial for optimizing dental motor performance.
Purpose of the Study:
- To analyze the kinematics of complex adaptive motion.
- To compare the effects of constant torque values on adaptive motion kinematics.
Main Methods:
- Utilized a new endodontic motor and 8:1 contra-angle handpiece for kinematic analysis.
- Applied constant torque loads of 0, 100, and 200 gcm to a target object's shaft.
- Employed a peak-to-peak-based phase identification method for kinematic analysis.
Main Results:
- Adaptive motion with a 100-gcm load exhibited inconsistent, mixed-phase kinematics (dual and quaternary phases).
- Kinematics under 0-gcm (dual-phase) and 200-gcm (quaternary-phase) loads were distinct and consistent.
- Significant differences in kinematic parameters were observed between load conditions (P < .05).
Conclusions:
- Demonstrated the kinematics of adaptive motion under different torque loads.
- A 100-gcm load is insufficient for predictable and constant operation in reciprocating endodontic motor modes.
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