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Short-Term Gingival Microcirculatory Responses to Non-Invasive Physical Stimulation: Implications for Accelerated
Shuichi Atsuta1, So Koizumi1, Shun-Suke Takahashi2
1Department of Orthodontics, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka 238-8580, Japan.
Dentistry Journal
|June 25, 2026
Summary
Vibration stimulation significantly enhanced gingival microcirculation, suggesting a potential method for accelerating orthodontic tooth movement by improving blood flow. Further research is needed to confirm these findings.
Area of Science:
- Biomedical Engineering
- Orthodontics
- Microcirculation Research
Background:
- Accelerating orthodontic tooth movement is a clinical challenge.
- Increased local blood flow is crucial for bone remodeling during orthodontics.
- Investigating non-invasive methods to enhance microcirculation is important.
Purpose of the Study:
- To evaluate the impact of various non-invasive physical stimuli on gingival microcirculation.
- To determine if vibration, thermal, electric field, or far-infrared stimulation affects gingival blood flow.
Main Methods:
- Eight healthy male volunteers participated.
- Laser Doppler flowmetry measured gingival blood flow.
- Stimuli included thermal (THM), electric field (ELF), vibration (VIB), and far-infrared (FIR) stimulation.
Main Results:
- Vibration stimulation (VIB) significantly increased gingival blood flow (p=0.0041).
- Electric field stimulation (ELF) showed a trend towards increased blood flow (p=0.0936).
- Thermal (THM) and far-infrared (FIR) stimulation did not significantly alter blood flow.
Conclusions:
- Non-invasive physical stimuli, especially vibration, can enhance gingival microcirculation.
- Observed hemodynamic changes may indicate physiological responses relevant to accelerated orthodontics.
Keywords:
accelerated orthodonticsgingival blood flowlaser Doppler flowmetrymicrocirculationorthodonticsphysical stimulationtooth movementvibration