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Evaluating the Effects of Different Polishing Methods on Color Stability of Dental Restorations in Pediatric Dentistry

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Color differences: polymerized composite and corresponding Vitapan Classical shade tab.

William D Browning¹, Rosalia Contreras-Bulnes, Martha G Brackett

¹Indiana University School of Dentistry, Indianapolis, IN 46037, USA. wbrownin@iupui.edu

Journal of Dentistry

|June 9, 2009

Summary

Newer composite resin restorative materials showed poor color match to Vitapan Classical shade tabs. None of the tested materials achieved acceptable color fidelity, indicating a significant mismatch in dental shade matching.

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Area of Science:

Dental Materials Science
Color Science in Dentistry
Restorative Dentistry

Background:

Accurate shade matching is crucial for aesthetic dental restorations.
Vitapan Classical shade guides are widely used standards in dentistry.
Evaluating the color fidelity of new composite resins to existing standards is essential.

Purpose of the Study:

To compare the color accuracy of novel composite resin restorative materials against established Vitapan Classical shade tabs.
To quantify color differences using established color difference formulas (CIELAB and CIEDE2000).

Main Methods:

Five Vitapan Classical shade tabs (A3.5, B2, C1, C3, D2) were selected.
Intraoral spectrophotometry was used to measure CIELAB color coordinates of the shade tabs.
Five different composite resin materials were fabricated into specimens matching the shade tabs.
Color differences between composite specimens and shade tabs were calculated using CIELAB and CIEDE2000 formulas.

Main Results:

CIELAB color differences ranged from 3.9 to 22.8.
CIEDE2000 color differences ranged from 2.1 to 13.8.
No composite resin material achieved an acceptable color match to any of the tested Vitapan Classical shades.

Conclusions:

The evaluated composite resins demonstrated a poor color match to the target Vitapan Classical shade tabs.
No material/shade combination met the standard for acceptable color match.
Significant discrepancies exist between new composite resin shades and traditional shade guide standards.