Photon Undulatory Non-Linear Conversion Diagnostic Method for Caries Detection: A Pilot Study

Kesler, Gavriel; Masychev, Victor I.; Sokolovsky, Alexander A.; Alexandrov, Michail Timofeevich; Kesler, Anat; Koren, Rumelia

doi:10.1089/104454703768247783

Cited by 8 publications

(7 citation statements)

References 13 publications

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“…Based on achieved data calculation is in progress and quantitative indication of pathological treatment is got. [23]. We defined the two normalized coefficients C 1 and C 2 , which responds to anti-stokes fluorescence and stokes fluorescence.…”

Section: Diagnosis Methodsmentioning

confidence: 99%

“…Meanwhile, most of light radiation with short wavelength and back reflection parts of the radiation from the tissue was restrained, but the fluorescence part of the signal would not be attenuated. In data treatment by computer, the attenuated backscattering radiation was utilized to normalize fluorescence intensity [23].…”

Section: Diagnosis Methodsmentioning

confidence: 99%

“…Ongoing investigations with laser and light induced fluorescence have demonstrated different sensitivity and specificity on detecting artificial and natural lesions of teeth [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

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Detection of early dental caries using laser induced fluorescence with back-scattering enhancement

Liu

Tang

2014

2014 7th International Conference on Biomedical Engineering and Informatics

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Dental caries is the infectious oral disease affecting people worldwide. Early dental caries detection helps to prevent caries progression by non-surgical methods and promote tooth remineralization. A simple method based on laser induced fluorescence spectrum with backscattered enhancement is proposed for the detection of initial caries on vitro teeth. Fluorescence spectra of carious erosion on different status were given. The radiation of backscattering, reflection and autofluorescence from teeth was registered simultaneously. By the analysis the characteristics of auto-fluorescence and anti-stokes fluorescence, both chemical variations and structural and morphological alterations can be evaluated. After the intensity of fluorescence and backscattering light is normalized by the intensity of the reflection radiation, a measurable diagnostic criterion for various stages of carious lesion is put forward. For proving this opinion, contrastive study was given in healthy tooth, factitial caries, dental calculus and healthy enamel with surface breakdown. Preliminary results reveal that this new method has a high potential use to diagnose different levels of carious teeth and is reliable to the detection incipient carious erosion, calculus and filling teeth.

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Section: Diagnosis Methodsmentioning

confidence: 99%

Section: Diagnosis Methodsmentioning

confidence: 99%

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Detection of early dental caries using laser induced fluorescence with back-scattering enhancement

Liu

Tang

2014

2014 7th International Conference on Biomedical Engineering and Informatics

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“…In order to verify the stability and reliability of this system, reproducibility of spectra were proved by detection of one tooth sample [10] , continuously scanning 7 times and recording sequentially with time interval (5 sec.) between them.…”

Section: Reproducibilitymentioning

confidence: 99%

Research on optical properties of dental enamel for early caries diagnostics using a He-Ne laser

Tang

Liu

2008

SPIE Proceedings

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A new and non-invasive method adapted for optical diagnosis of early caries is proposed by researching on the interaction mechanism of laser with dental tissue and relations of remitted light with optical properties of the tissue. This method is based on simultaneous analyses of the following parameters: probing radiation, backscattering and auto-fluorescence. Investigation was performed on 104 dental samples in vitro by using He-Ne laser (λ=632.8nm, 2.0±0.1mW) as the probing. Spectrums of all samples were obtained. Characteristic spectrums of dental caries in various stages (intact, initial, moderate and deep) were given. Using the back-reflected light to normalize the intensity of back-scattering and fluorescence, a quantitative diagnosis standard for different stages of caries is proposed. In order to verify the test, comparison research was conducted among artificial caries, morphological damaged enamel, dental calculus and intact tooth. Results show that variations in backscattering characteristic changes in bio-tissue morphological and the quantity of auto-fluorescence is correlated with concentration of anaerobic microflora in hearth of caries lesion. This method poses a high potential of diagnosing various stages of dental caries, and is more reliability to detect early caries, surface damage of health enamel and dental calculus.

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“…O método permite que a lesão seja detectada com alta sensibilidade e especificidade por meio da diferenciação entre espectros de regiões sadias e desmineralizadas, mas ainda não é prático em clínicas odontológicas 41,42,43 .…”

Section: Introductionunclassified

"Detecção de lesões de cárie por fluorescência: correlação entre a histologia e os resultados obtidos com o diagnodent e a espectroscopia"

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Photon Undulatory Non-Linear Conversion Diagnostic Method for Caries Detection: A Pilot Study

Abstract: The PNC method detects different stages of caries lesions in real time, and it exceeds x-rays in sensitivity, without any ionizing radiation. Preliminary results showed a high potential of using the PNC method in clinical practice (98% accuracy) in comparison to the other methods.

Cited by 8 publications

References 13 publications

Detection of early dental caries using laser induced fluorescence with back-scattering enhancement

Detection of early dental caries using laser induced fluorescence with back-scattering enhancement

Research on optical properties of dental enamel for early caries diagnostics using a He-Ne laser

"Detecção de lesões de cárie por fluorescência: correlação entre a histologia e os resultados obtidos com o diagnodent e a espectroscopia"

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