Dental fluorescence: Potential forensic use

Silva, Ricarda Duarte da; Silva, Marcos André Duarte da; Oliveira, Osmir Batista de; Melo, Ana Cláudia Moreira; Oliveira, Rogério Nogueira de

doi:10.1016/j.forsciint.2013.05.001

Cited by 23 publications

(29 citation statements)

References 15 publications

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“…29 The correlation between age and teeth fluorescence for individuals from different age groups was assessed via computer analysis of digital images. 31 As a result, dental fluorescence decreased when comparing the age groups of 21 to 30, 31 to 40, 41 to 50, and 51 to 63 years. Dental fluorescence was correlated with age and had a similar and stable behavior from 7 to 20 years of age, reaching its maximum expected value at the age of 26.5 years and thereafter decreasing.…”

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“…These changes increase the chromatic saturation of dentine while reducing its opacity. 30 In natural tooth, the structural changes in enamel and dentine alter the expression of the tooth color, 31 since tooth color is determined by the paths of light inside the tooth and absorption along these paths. 32 When tooth is exposed to UV light, light penetrates the enamel and excites the dentine's photosensitivity.…”

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Fluorescence properties of human teeth and dental calculus for clinical applications

Lee¹

2015

J. Biomed. Opt

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Abstract. Fluorescent emission of human teeth and dental calculus is important for the esthetic rehabilitation of teeth, diagnosis of dental caries, and detection of dental calculus. The purposes of this review were to summarize the fluorescence and phosphorescence of human teeth by ambient ultraviolet (UV) light, to investigate the clinically relevant fluorescence measurement methods in dentistry, and to review the fluorescence of teeth and dental calculus by specific wavelength light. Dentine was three times more phosphorescent than enamel. When exposed to light sources containing UV components, the fluorescence of human teeth gives them the quality of vitality, and fluorescent emission with a peak of 440 nm is observed. Esthetic restorative materials should have fluorescence properties similar to those of natural teeth. Based on the fluorescence of teeth and restorative materials as determined with a spectrophotometer, a fluorescence parameter was defined. As to the fluorescence spectra by a specific wavelength, varied wavelengths were investigated for clinical applications, and several methods for the diagnosis of dental caries and the detection of dental calculus were developed. Since fluorescent properties of dental hard tissues have been used and would be expanded in diverse fields of clinical practice, these properties should be investigated further, embracing newly developed optical techniques.

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confidence: 99%

Fluorescence properties of human teeth and dental calculus for clinical applications

Lee¹

2015

J. Biomed. Opt

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“…However, views on the evolution of fluorescence intensity with aging are still contradictory. For some authors, fluorescence increases with age linearly in all dental regions, regardless of the type of teeth, and can be used as an indicator of the maturation of the human body, especially in forensic and archaeological applications . On the other hand, recent studies have argued that dental fluorescence shows a stable behavior, reaches its maximum intensity at 26.5 years of age and then decreases gradually .…”

Section: Concepts Historical Perspective and Terminologymentioning

confidence: 99%

“…For some authors, fluorescence increases with age linearly in all dental regions, regardless of the type of teeth, and can be used as an indicator of the maturation of the human body, especially in forensic and archaeological applications . On the other hand, recent studies have argued that dental fluorescence shows a stable behavior, reaches its maximum intensity at 26.5 years of age and then decreases gradually . Nonetheless, when accelerated aging simulations are performed, heat can act as a catalyst, degrading the photo capacity of the organic bonds and causing a consequent decrease in fluorescence, thus making it more difficult to compare the simulation results with the ones caused by physiological aging …”

Section: Concepts Historical Perspective and Terminologymentioning

confidence: 99%

“…19,26,32 On the other hand, recent studies have argued that dental fluorescence shows a stable behavior, reaches its maximum intensity at 26.5 years of age and then decreases gradually. 32 Nonetheless, when accelerated aging simulations are performed, heat can act as a catalyst, degrading the photo capacity of the organic bonds and causing a consequent decrease in fluorescence, thus making it more difficult to compare the simulation results with the ones caused by physiological aging. 19,33 Another aspect discussed in the literature is the change in fluorescence intensity after tooth whitening.…”

Section: Concepts Historical Perspective and Terminologymentioning

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Fluorescence of natural teeth and restorative materials, methods for analysis and quantification: A literature review

Volpato

Pereira

Silva

2018

J Esthet Restor Dent

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Objective This review integrates published scientific information about the fluorescence of natural teeth, dental resins and ceramics, and the main methods of analysis and quantification presented in the literature. Overview Fluorescence is an emission of light (photons) by a substance that has absorbed light of higher energy. In natural teeth, it is more intense in the dentin than in the enamel and presents a bluish‐white color. In dental resins and ceramics, fluorescence is obtained by the incorporation of materials that contain rare‐earth luminescence centers (more precisely lanthanide luminescence centers), which allows these artificial materials to simulate natural teeth in a more beautiful and vital‐looking way. However, the lack of knowledge about this optical phenomenon on the part of professionals indicates the need for more scientific studies and dissemination on this topic. Conclusions Aesthetic materials have variable spectral compositions and fluorescence intensities, which are not always compatible with natural teeth. The fluorescence of teeth and restorative materials can be influenced by several factors, such as aging, temperature, and bleaching. Several devices for fluorescence evaluation and quantification are used in studies under different methodologies, but the small number of studies on the subject make it difficult to compare their results. Clinical Significance Fluorescence is a fundamental optical property for aesthetic rehabilitations since its presence and intensity in the restorative materials allows achieving an aesthetic result much closer to reality. However, the fluorescent behavior of natural teeth and aesthetic restorative materials is not yet fully understood by researchers and clinicians. Greater understanding of this phenomenon will contribute to the selection, indication, and clinical use of these materials.

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Assessment of Optical Properties

2021

Manual of Laboratory Testing Methods for Dental Restorative Materials

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Dental fluorescence: Potential forensic use

Cited by 23 publications

References 15 publications

Fluorescence properties of human teeth and dental calculus for clinical applications

Fluorescence properties of human teeth and dental calculus for clinical applications

Fluorescence of natural teeth and restorative materials, methods for analysis and quantification: A literature review

Assessment of Optical Properties

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