The Assessment of teeth whitening is a controlled clinical study designed to measure and document the effectiveness of whitening cosmetic products on tooth coloration. Conducted under dermatological supervision, this test provides reliable and quantifiable data on the visible whitening performance of toothpaste, whitening gels, or other oral care formulations.

Purpose of the Test

The goal of this test is to evaluate the whitening efficacy of a cosmetic or oral care product through objective and visual assessment methods. It supports marketing and regulatory claims such as “whitens teeth,” “restores natural whiteness,” and “improves brightness after regular use.”

How the Test Works

The Assessment of Teeth Whitening is performed using an Apparatus Test combined with a standardized visual scale, the VITA 3D MASTER colorant system. This reference tool allows precise determination of tooth shade before and after product use, enabling the measurement of whitening progress over a defined treatment period.

Applications in Cosmetic Testing

• Evaluation of whitening toothpaste, gels, and mouthwashes
• Assessment of stain-removing or brightening oral care formulations
• Verification of “visible whitening” and “shade improvement” claims
• Comparison of efficacy between different whitening treatments
• Longitudinal tracking of tooth shade improvement over time

Test Procedure

1. The study is conducted under dermatological supervision to ensure participant safety and consistency.
2. A group of 10 probands (volunteers) participates in the test.
3. Baseline tooth color measurements are taken using the VITA 3D MASTER color scale before the first application.
4. Participants use the test product regularly for a defined period (e.g., daily for 7, 14, or 28 days).
5. Follow-up measurements are taken at the end of the study to assess the degree of whitening achieved.
6. The “before and after” shade values are compared to quantify whitening progress.

Results & Reporting

The final report includes:

• Study protocol and supervision details
• Baseline and final tooth color measurements
• Shade comparison based on the VITA 3D MASTER color system
• Statistical evaluation of whitening degree and improvement percentage
• Interpretation of efficacy and product performance summary

Why This Test Matters

Tooth discoloration is a common aesthetic concern. The Assessment of Teeth Whitening provides objective, quantifiable results confirming the whitening performance of cosmetic oral care products. The data helps validate claims with scientific precision and enhances consumer confidence in the product’s efficacy.

Sample Requirements

• Minimum quantity: 50–100 g or mL of finished product
• Number of samples: 11 finished products (for testing and repeat measurements)
• Product type: toothpaste, whitening gel, mouthwash, or similar oral care formulation
• Storage: room temperature unless otherwise specified

Test Parameters

• Group size: 10 probands
• Supervision: conducted under dermatological oversight
• Evaluation method: VITA 3D MASTER colorant scale
• Analysis: comparison of shade changes before and after use
• In-house methodology: I06/PO-08

Turnaround Time

Typical turnaround time is 3–4 weeks depending on the duration of the whitening treatment and study schedule.

Deliverables

• Comprehensive clinical report in PDF format
• Before-and-after tooth color data and visual scale comparison
• Statistical results supporting whitening or brightening claims

Compliance & Standards

This study follows in-house methodology I06/PO-08 and is conducted in accordance with Good Clinical Practice (GCP) and international cosmetic testing standards. All assessments are performed under professional dermatological supervision to ensure ethical and reliable testing outcomes.