A fogorvosi anyagok optikai vizsgálatának módszerei:

Emese Dr. Ábrám; József Dr. Saláta; Melinda Dr. Antal; Péter Dr. Márton; Judit  Dr. Borbély; Péter  Dr. Hermann

doi:10.33891/FSZ.118.1.20-25

Emese Dr. Ábrám Semmelweis University Department of Prosthodontics https://orcid.org/0000-0002-2078-5744
József Dr. Saláta Semmelweis University Department of Prosthodontics https://orcid.org/0000-0002-3851-9591
Melinda Dr. Antal Semmelweis University Department of Prosthodontics https://orcid.org/0009-0006-9767-6462
Péter Dr. Márton
Judit Dr. Borbély Semmelweis University Department of Prosthodontics https://orcid.org/0000-0003-3064-8724
Péter Dr. Hermann Semmelweis University Department of Prosthodontics https://orcid.org/0000-0002-9148-0139

DOI: https://doi.org/10.33891/FSZ.118.1.20-25

Keywords: Optical properties, Contrast Ratio (CR), Translucency Parameter (TP), CIEDE2000

Abstract

Introduction: The esthetic quality of dental restorations is determined by the optical properties of materials, particularly
translucency and opacity. Achieving a natural appearance requires a comprehensive understanding of light interaction
mechanisms, including absorption, reflection, and transmission. Advances in material science focus on optimizing these
properties to enhance the seamless integration of restorative materials with natural dentition.
Objective: This review evaluates measurement methods for assessing translucency and opacity in dental materials,
including the Kubelka–Munk theory, contrast ratio (CR), and spectral transmittance and reflectance analyses. Understanding
these techniques is essential for selecting materials that enhance the optical harmony of restorations with natural
teeth, ultimately improving esthetic outcomes in clinical practice.
Materials and Methods: The Contrast Ratio (CR) and Translucency Parameter (TP) are key quantitative indicators of
the optical properties of dental materials. CR quantifies the masking ability of a material by comparing its luminous reflectance
on black and white backgrounds. TP, in contrast, evaluates the light transmission properties of a material based
on color differences measured in the CIE color space between black and white backings. These metrics are essential for
predicting the clinical appearance of restorative materials under varying lighting conditions.
Conclusion: The combined application of these measurement methods allows a more comprehensive and precise
evaluation of the optical properties of dental materials. By integrating multiple analytical approaches, a deeper understanding
of translucency and opacity can be achieved, facilitating informed material selection and optimizing the esthetic
performance of dental restorations.

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Optical Characterization of Dental Restorative Materials

Evaluation of Translucency and Opacity Measurement Methods

Abstract

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