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Power toothbrushes, gender, and dentin hypersensitivity.

A F Hefti¹, C Stone

¹College of Dentistry, Ohio State University Columbus, 4133 Postle Hall, 305 West 12th Avenue, Columbus, OH 43210, USA. hefti.1@osu.edu

Clinical Oral Investigations

|February 24, 2001

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This study found that both sonic and oscillating/rotating power toothbrushes significantly reduced dentin hypersensitivity pain. No significant difference in effectiveness was observed between the two power toothbrush types for managing tooth sensitivity.

Area of Science:

Dentistry
Oral Health
Biomedical Research

Background:

Power toothbrushes may reduce dentin hypersensitivity by requiring less force for plaque removal.
Low brushing force could occlude dentin tubules, potentially decreasing tooth sensitivity.

Purpose of the Study:

To compare the efficacy of two power toothbrush types in reducing dentin hypersensitivity.
To evaluate the effect of sonic versus oscillating/rotating power toothbrushes on tooth sensitivity.

Main Methods:

An 8-week randomized, examiner-blind clinical trial.
Fifty-nine participants with dentin hypersensitivity used either an Optiva Sonicare or Braun Oral B Ultra Plaque Remover toothbrush.
Pain was assessed using a visual analog scale (VAS) after tactile and evaporative stimuli.

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Main Results:

Both power toothbrush groups showed a 35%-40% reduction in dentin hypersensitivity pain compared to baseline.
No statistically significant differences in pain reduction were found between the sonic and oscillating/rotating power toothbrush groups.
A potential gender-related effect on tactile stimulus response was noted.

Conclusions:

Both sonic and oscillating/rotating power toothbrushes are effective in reducing dentin hypersensitivity.
The choice between these two types of power toothbrushes may not significantly impact the reduction of tooth sensitivity.
Further research into gender-related differences in dentin hypersensitivity is warranted.