Toothbrushing Systematics Index (TSI) - A new tool for quantifying systematics in toothbrushing behaviour.

Area of Science:

• Oral hygiene research
• Behavioral science in health
• Dental public health

Background:

• Effective toothbrushing is crucial for oral health.
• Quantifying toothbrushing technique systematically is challenging.
• Existing methods may not fully capture brushing behavior nuances.

Purpose of the Study:

• To introduce a novel index for quantifying toothbrushing systematics.
• To validate the index using observational data and algorithms.
• To assess the index's clinical applicability and discriminative power.

Main Methods:

• Developed the Toothbrushing Systematics Index (TSI) based on completeness, isochronicity, and consistency.
• Utilized quantitative video observational data (area coverage, time, transitions).
• Applied algorithms to derive index values and tested with clinical intervention data.

Main Results:

• The TSI ranges from 0 (unsystematic) to 2 (perfectly systematic).
• Optimal brushing involves reaching all areas equally long with minimal area changes.
• Intervention study showed significant TSI improvement (p≤0.001) post-toothbrushing sequence adoption.

Conclusions:

• The TSI offers a valid method to quantify toothbrushing technique variations.
• The index demonstrates discriminative power in assessing changes in brushing habits.
• This tool can aid in evaluating and enhancing toothbrushing education and interventions.