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Related Experiment Video

Updated: Sep 22, 2025

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry

Published on: February 2, 2018

A naturalistic study of brushing patterns using powered toothbrushes.

Mahmoud Essalat¹, Douglas Morrison², Sumukh Kak³

¹Department of Electrical and Computer Engineering, University of California, Los Angeles, California, United States of America.

|May 19, 2022

Summary

This summary is machine-generated.

Powered toothbrush users exhibit significant variability in brushing habits, often neglecting recommended duration and technique. This inconsistency impacts plaque removal, highlighting the need for personalized oral care guidance based on sensor data.

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Published on: November 7, 2020

Area of Science:

Oral hygiene research
Biomedical engineering
Behavioral science

Background:

Dental caries and periodontal disease are prevalent chronic conditions linked to inadequate plaque removal.
Powered toothbrushes are suggested to improve plaque removal, but clinical outcomes show significant heterogeneity.
Existing evidence does not fully explain the variations in powered toothbrush efficacy.

Purpose of the Study:

To investigate the heterogeneity in powered toothbrushing patterns.
To analyze brushing behaviors in a naturalistic setting using integrated sensor technology.
To identify factors contributing to inconsistent plaque removal with powered toothbrushes.

Main Methods:

An observational study involving 12 participants using powered toothbrushes in their homes.
Integrated brush sensors and a digital platform captured habitual brushing patterns unobtrusively.
Analysis of 120 brushing sessions, focusing on duration, coverage, and pressure across different tooth surfaces.

Main Results:

Significant between- and within-participant variability in brushing patterns and efficiency was observed.
Most participants (91.67%) brushed for less than the recommended two minutes, with inconsistent duration across sessions.
Unequal time was spent on different dental regions, with buccal surfaces brushed over twice as long as occlusal and lingual surfaces; lingual surfaces of maxillary molars were often neglected.

Conclusions:

Powered toothbrush users demonstrate substantial variability in usage, diverging from recommended practices.
Inconsistent brushing patterns can compromise effective plaque removal.
Findings emphasize the need for personalized brushing recommendations derived from objective sensor data to improve oral self-care.