A peer-reviewed journal that offers evidence-based clinical information and continuing education for dentists.

Why Seeing Biofilm Is Believing

Test your knowledge on the use of disclosing solution.

By Kristen Pratt Machado On Jan 8, 2026

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What is one key protective function of the acquired salivary pellicle?

pinrika / iStock / Getty Images Plus

It eliminates all oral bacteria

It regulates mineral balance and protects against acid attacks

It permanently prevents plaque formation

It replaces fluoride in oral care

Correct! Wrong!

Why is disclosing solution considered such an effective patient education tool?

It permanently removes plaque

It sterilizes tooth surfaces

It makes otherwise invisible biofilm visible and measurable

It replaces the need for oral hygiene instruction

Correct! Wrong!

A biofilm-free score of 85% or higher indicates which of the following?

Severe periodontal disease

The need for immediate restorative care

Adequate oral hygiene

Complete elimination of dental biofilm

Correct! Wrong!

Why Seeing Biofilm Is Believing

You answered all 3 questions correctly!

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