Prof. Daniel Fried Profile

Prof. Daniel Fried

at Univ of California San Francisco

SPIE Involvement:

Editorial Board Member: Journal of Biomedical Optics | Author | Editor

Publications (198)

SPIE Journal Paper | 9 September 2023 Open Access

Special Section Guest Editorial: Short Wave Infrared Techniques and Applications in Biomedical Optics

Daniel Fried, Mark Pierce, Darren Roblyer

JBO, Vol. 28, Issue 09, 094800, (September 2023) https://doi.org/10.1117/12.10.1117/1.JBO.28.9.094800

KEYWORDS: Short wave infrared radiation, Biomedical applications, Emission wavelengths, Biomedical optics, Infrared radiation, Tumors, Fluorescence, Autofluorescence, Fluorescence lifetime imaging, Thermography

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SPIE Journal Paper | 10 January 2023 Open Access

Assessment of the activity of secondary caries lesions with short-wavelength infrared, thermal, and optical coherence tomographic imaging

Nai-Yuan N. Chang, Tina Dillas, Yihua Zhu, Daniel Fried

JBO, Vol. 28, Issue 09, 094801, (January 2023) https://doi.org/10.1117/12.10.1117/1.JBO.28.9.094801

KEYWORDS: Short wave infrared radiation, Optical coherence tomography, Thermography, Dental caries, Teeth, Composites, Reflectivity, Permeability, Minerals, Interfaces

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Proceedings Article | 4 March 2022 Paper

Use of SWIR dehydration and OCT to assess the complete arrest of simulated incipient caries lesions

Nai-Yuan Chang, John Tressel, Filipp Kashirtsev, Daniel Fried

Proceedings Volume 11942, 119420A (2022) https://doi.org/10.1117/12.2608297

KEYWORDS: Short wave infrared radiation, Optical coherence tomography, Reflectivity, Dental caries, Minerals, Light sources, Cameras, Diffusion, Absorption, Scattering

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Proceedings Article | 4 March 2022 Paper

Caries inhibition of simulated active caries lesions with CO2 laser irradiation and fluoride

John Tressel, Filipp Kashirtsev, Kevin Cheung, Jacob Simon, Daniel Fried

Proceedings Volume 11942, 119420B (2022) https://doi.org/10.1117/12.2608308

KEYWORDS: Dental caries, Reflectivity, Optical coherence tomography, Laser irradiation, Carbon dioxide lasers, Laser therapeutics, Short wave infrared radiation, Reflection, Gas lasers, Optical simulations

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Proceedings Article | 4 March 2022 Paper

Dehydration imaging of dental fluorosis at 1950 nm

Filipp Kashirtsev, John Tressel, Daniel Fried

Proceedings Volume 11942, 1194209 (2022) https://doi.org/10.1117/12.2608283

KEYWORDS: Teeth, Short wave infrared radiation, Dental caries, Reflectivity, Optical coherence tomography, Minerals, Light sources, Polarizers, Cameras, Absorption

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Proceedings Article | 4 March 2022 Presentation + Paper

Evaluating interproximal and occlusal lesion severity with a dual SWIR transillumination/reflectance probe

Yihua Zhu, Daniel Fried

Proceedings Volume 11942, 1194203 (2022) https://doi.org/10.1117/12.2608288

KEYWORDS: Short wave infrared radiation, Reflectivity, Teeth, Radiography, Mathematical modeling, Dental caries, Optical coherence tomography, Cameras, Transparency, Signal attenuation

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Proceedings Article | 4 March 2022 Presentation + Paper

Assessing lesion activity of secondary lesions on extracted teeth by thermal dehydration measurement and optical coherence tomography

Nai-Yuan Chang, Tina Dillas, Daniel Fried

Proceedings Volume 11942, 1194204 (2022) https://doi.org/10.1117/12.2608291

KEYWORDS: Teeth, Optical coherence tomography, Reflectivity, Thermography, Temperature metrology, Optical testing, Image resolution, Dental caries, Microelectromechanical systems, In vitro testing

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SPIE Journal Paper | 25 May 2021 Open Access

Dynamic SWIR imaging near the 1950-nm water absorption band for caries lesion diagnosis

John Tressel, Marwa Abdelaziz, Daniel Fried

JBO, Vol. 26, Issue 05, 056006, (May 2021) https://doi.org/10.1117/12.10.1117/1.JBO.26.5.056006

KEYWORDS: Short wave infrared radiation, Teeth, Reflectivity, Absorption, Dental caries, Light sources, Cameras, Polarizers, Light scattering, Scattering

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Infrared imaging confirms the role of the transparent surface zone in arresting dental caries

Hao Liu, Nai-Yuan Chang, Wanrong Gao, Daniel Fried

Proceedings Volume 11627, 116270O (2021) https://doi.org/10.1117/12.2584907

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Proceedings Article | 5 March 2021 Presentation + Paper

Multispectral SWIR images of the pulp-chamber of posterior teeth in vitro

Jacob Simon, Emmanuel Mogire, Sam Yun, Daniel Fried

Proceedings Volume 11627, 116270L (2021) https://doi.org/10.1117/12.2584900

KEYWORDS: Teeth, Reflectivity, In vitro testing, Microscopes, Tissues, Dental caries, Visible radiation, Radiography, Optical properties, Luminescence

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Proceedings Article | 5 March 2021 Presentation + Paper

Monitoring silver diamine fluoride application with optical coherence tomography

M. Abdelaziz, D. Fried, N. Chang, V. Yang, W. Fried, J. Seto, C. Darling

Proceedings Volume 11627, 116270M (2021) https://doi.org/10.1117/12.2584901

KEYWORDS: Optical coherence tomography, Silver, Reflectivity

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

High contrast reflectance imaging at 1950-nm for the assessment of lesion activity on extracted teeth

John Tressel, Marwa Abdelaziz, Daniel Fried

Proceedings Volume 11627, 116270P (2021) https://doi.org/10.1117/12.2584909

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Imaging dental fluorosis at SWIR wavelengths from 1300 to 2000-nm

Filipp Kashirtsev, Jacob Simon, Daniel Fried

Proceedings Volume 11627, 116270Q (2021) https://doi.org/10.1117/12.2588696

KEYWORDS: Short wave infrared radiation, Teeth, Visualization, Optical coherence tomography, Light sources, Infrared radiation, Infrared detectors, Indium gallium arsenide, Dental caries, Cameras

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Proceedings Article | 5 March 2021 Presentation + Paper

Compact in vivo handheld dual SWIR transillumination/reflectance imaging system for the detection of proximal and occlusal lesions

Yihua Zhu, Jacob Simon, Chung Ng, Daniel Fried

Proceedings Volume 11627, 116270N (2021) https://doi.org/10.1117/12.2584903

KEYWORDS: Short wave infrared radiation, Imaging systems, Diagnostics, Reflectivity, In vitro testing, Teeth, Light, Superluminescent diodes, Radiography, Light sources

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SPIE Journal Paper | 29 January 2021 Open Access

Dual short wavelength infrared transillumination/reflectance mode imaging for caries detection

Yihua Zhu, Marwa Abdelaziz, Jacob Simon, Oanh Le, Daniel Fried

JBO, Vol. 26, Issue 04, 043004, (January 2021) https://doi.org/10.1117/12.10.1117/1.JBO.26.4.043004

KEYWORDS: Short wave infrared radiation, Reflectivity, Teeth, Image fusion, Radiography, Infrared imaging, Infrared radiation, Dental caries, Diagnostics, Computed tomography

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Proceedings Article | 19 February 2020 Paper

A SWIR imaging handpiece for the clinical assessment of lesion activity via dehydration: preclinical assessment

William Fried, Yihua Zhu, Vincent Yang, Nai-Yuan Chang, Daniel Fried

Proceedings Volume 11217, 112170I (2020) https://doi.org/10.1117/12.2550981

KEYWORDS: Short wave infrared radiation, Reflectivity, Teeth, Dental caries, Imaging systems, Optical coherence tomography, Diffusion, Light scattering, Cameras, 3D image processing

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Proceedings Article | 19 February 2020 Paper

A dual handheld SWIR transillumination/reflectance probe for imaging lesions on tooth occlusal and proximal surfaces

Yihua Zhu, Nai-Yuan Chang, William Fried, Vincent Yang, Daniel Fried

Proceedings Volume 11217, 112170J (2020) https://doi.org/10.1117/12.2550984

KEYWORDS: Reflectivity, Teeth, Short wave infrared radiation, Image segmentation, Radiography, Imaging systems, Cameras, Light sources, Light scattering, Scattering

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Proceedings Article | 19 February 2020 Paper

Optical Coherence Tomography (OCT) for the evaluation of internal adaptation of class V resin restorations on dentin

Marwa Abdelaziz, Andrés Zuluaga, Francisco Betancourt, Daniel Fried, Ivo Krejci, Tissiana Bortolotto

Proceedings Volume 11217, 1121706 (2020) https://doi.org/10.1117/12.2544684

KEYWORDS: Optical coherence tomography, Adhesives, Imaging systems, Teeth, Dental caries, Composites, Composite resins

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Proceedings Article | 19 February 2020 Paper

A thermal imaging handpiece for the clinical assessment of lesion activity on root surfaces via dehydration

Vicent Yang, Nai-Yuan Chang, Daniel Fried

Proceedings Volume 11217, 112170H (2020) https://doi.org/10.1117/12.2550977

KEYWORDS: Dental caries, Thermography, Teeth, In vivo imaging, Cameras, Visualization, Imaging systems, Stereoscopic cameras, Polarized microscopy, Microscopy

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Proceedings Article | 19 February 2020 Paper

In vivo spectral guided removal of composite from tooth surfaces with a CO2 laser

Jacob Simon, Jye Hye Choi, Andrew Jang, Daniel Fried

Proceedings Volume 11217, 112170K (2020) https://doi.org/10.1117/12.2550985

KEYWORDS: Composites, Teeth, Carbon dioxide lasers, Optical coherence tomography, Laser ablation, Gas lasers, Dental caries, Laser systems engineering, In vivo imaging, Laser scanners

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Proceedings Article | 19 February 2020 Presentation + Paper

SWIR, thermal and CP-OCT imaging probes for the in vivo assessment of the activity of root caries lesions

Nai-Yuan Chang, Yihua Zhu, Donald Curtis, Oanh Le, Vincent Yang, Wiliiam Fried, Jacob Simon, Prajna Banan, Cynthia Darling, Daniel Fried

Proceedings Volume 11217, 1121708 (2020) https://doi.org/10.1117/12.2550982

KEYWORDS: Dental caries, Short wave infrared radiation, Optical coherence tomography, Thermography, In vivo imaging, Teeth, Cameras, Cements, Mirrors, Reflectivity

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Proceedings Article | 7 March 2019 Presentation

Real-time visualization of hidden occlusal and approximal lesions with an OCT dental handpiece (Conference Presentation)

Andrés Zuluaga, Vincent Yang, Joey Jabbour, Timothy Ford, Nate Kemp, Daniel Fried

Proceedings Volume 10857, 108570E (2019) https://doi.org/10.1117/12.2513442

KEYWORDS: Optical coherence tomography, Visualization, Near infrared, Optical imaging, Dental caries, Polarization, Image resolution, Prototyping

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SPIE Journal Paper | 4 March 2019 Open Access

Near-infrared imaging of demineralization on the occlusal surfaces of teeth without the interference of stains

Chung Ng, Elias Almaz, Jacob Simon, Daniel Fried, Cynthia Darling

JBO, Vol. 24, Issue 03, 036002, (March 2019) https://doi.org/10.1117/12.10.1117/1.JBO.24.3.036002

KEYWORDS: Teeth, Reflectivity, Near infrared, Imaging systems, Absorption, Dental caries, Luminescence, Light scattering, Indium gallium arsenide, Ultrasonics

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Proceedings Article | 28 February 2019 Presentation + Paper

The relationship of dehydration rate and transparent surface layer thickness for coronal lesions on extracted teeth

Nai-Yuan Chang, Marwa Abdelaziz, Daniel Fried

Proceedings Volume 10857, 108570D (2019) https://doi.org/10.1117/12.2512921

KEYWORDS: Optical coherence tomography, Reflectivity, Near infrared, Teeth, Light scattering, Diffusion, 3D scanning, Dental caries, Diagnostics, Scattering

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Proceedings Article | 28 February 2019 Paper

An appliance for monitoring the shrinkage of root caries with OCT

Vincent Yang, Daniel Fried

Proceedings Volume 10857, 108570L (2019) https://doi.org/10.1117/12.2512933

KEYWORDS: Dental caries, Optical coherence tomography, Teeth, In vivo imaging, Cements, Minerals, Visualization, Collagen, Polarized microscopy, Microscopy

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Proceedings Article | 28 February 2019 Paper

Selective removal of dental calculus with a diode-pumped Er:YAG laser

William Fried, Kenneth Chan, Cynthia Darling, Daniel Fried

Proceedings Volume 10857, 108570M (2019) https://doi.org/10.1117/12.2512937

KEYWORDS: Calculus, Teeth, Short wave infrared radiation, Er:YAG lasers, Laser ablation, Diode pumped solid state lasers, Reflectivity, Optical coherence tomography, Cements, Dental caries

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Proceedings Article | 28 February 2019 Paper

Image guided laser ablation of demineralization from root surfaces

Navitinder Dhillon, Kenneth Chan, Vincent Yang, Daniel Fried

Proceedings Volume 10857, 108570N (2019) https://doi.org/10.1117/12.2512938

KEYWORDS: Short wave infrared radiation, Gas lasers, Laser ablation, Teeth, Dental caries, Carbon monoxide, Reflectivity, Fiber lasers, Optical coherence tomography, Tissues

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Proceedings Article | 28 February 2019 Paper

The contrast of demineralization on tooth occlusal surfaces from 405 to 1950-nm with varying depth

Niloufar Mohajerani, Kenneth Chan, Vincent Yang, Daniel Fried, Cynthia Darling

Proceedings Volume 10857, 108570O (2019) https://doi.org/10.1117/12.2512941

KEYWORDS: Teeth, Reflectivity, Short wave infrared radiation, Near infrared, Light scattering, Absorption, Light sources, Diagnostics, Microscopes, Dental caries

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SPIE Journal Paper | 6 June 2018 Open Access

Multispectral cross-polarization reflectance measurements suggest high contrast of demineralization on tooth surfaces at wavelengths beyond 1300 nm due to reduced light scattering in sound enamel

Kenneth Chan, Daniel Fried

JBO, Vol. 23, Issue 06, 060501, (June 2018) https://doi.org/10.1117/12.10.1117/1.JBO.23.6.060501

KEYWORDS: Light scattering, Teeth, Absorption, Reflectivity, Near infrared, Scattering, Dental caries, Optical coherence tomography, Fiber lasers, Imaging systems

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Proceedings Article | 8 February 2018 Presentation + Paper

Multispectral near-infrared reflectance and transillumination imaging of occlusal carious lesions: variations in lesion contrast with lesion depth

Jacob Simon, Donald Curtis, Cynthia Darling, Daniel Fried

Proceedings Volume 10473, 1047305 (2018) https://doi.org/10.1117/12.2296013

KEYWORDS: Reflectivity, Near infrared, Teeth, Imaging systems, Cameras, In vitro testing, Optical filters, Image analysis, Polarized microscopy, Microscopy

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Proceedings Article | 8 February 2018 Presentation + Paper

Lesion dehydration rate changes with the surface layer thickness during enamel remineralization

Nai-Yuan Chang, Jamison Jew, Daniel Fried

Proceedings Volume 10473, 104730D (2018) https://doi.org/10.1117/12.2296023

KEYWORDS: Near infrared, Reflectivity, Light scattering, Diffusion, Dental caries, Optical coherence tomography, LabVIEW, Image processing

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Proceedings Article | 8 February 2018 Open Access

Selective ablation of carious lesions using an integrated multispectral near-IR imaging system and a novel 9.3-µm CO2 laser

Kenneth Chan, Nathaniel Fried, Daniel Fried

Proceedings Volume 10473, 104730E (2018) https://doi.org/10.1117/12.2296025

KEYWORDS: Gas lasers, Laser ablation, Reflectivity, Teeth, Imaging systems, Scattering, Dental caries, Fiber lasers

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Proceedings Article | 8 February 2018 Paper

Image-guided removal of interproximal lesions with a CO2 laser

Albert Ngo, Kenneth Chan, Oanh Le, Jacob Simon, Daniel Fried

Proceedings Volume 10473, 104730T (2018) https://doi.org/10.1117/12.2296028

KEYWORDS: Near infrared, Gas lasers, Teeth, Optical coherence tomography, Reflectivity, Dental caries, Laser ablation, Natural surfaces, Indium gallium arsenide

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Proceedings Article | 8 February 2018 Paper

SWIR reflectance imaging of demineralization on the occlusal surfaces of teeth beyond 1700 nm

Chung Ng, Jacob Simon, Daniel Fried, Cynthia Darling

Proceedings Volume 10473, 104730U (2018) https://doi.org/10.1117/12.2296030

KEYWORDS: Teeth, Reflectivity, Short wave infrared radiation, Absorption, Indium gallium arsenide, Near infrared, Light scattering, Radiography, Cameras

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Proceedings Article | 14 February 2017 Paper

Optical changes of dentin in the near-IR as a function of mineral content

Rhett Berg, Jacob Simon, Daniel Fried, Cynthia Darling

Proceedings Volume 10044, 100440M (2017) https://doi.org/10.1117/12.2256745

KEYWORDS: Minerals, Near infrared, Teeth, Signal attenuation, Optical coherence tomography, Tissue optics, Light scattering, Scattering, Polarized microscopy, Microscopy

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Proceedings Article | 8 February 2017 Presentation + Paper

Selective laser ablation of carious lesions using simultaneous scanned near-IR diode and CO2 lasers

Kenneth Chan, Daniel Fried

Proceedings Volume 10044, 100440C (2017) https://doi.org/10.1117/12.2256696

KEYWORDS: Laser ablation, Absorption, Cameras, Imaging systems, Diodes, Carbon dioxide lasers, Reflectivity, Scanners, Teeth, Image segmentation, Gas lasers, Dental caries, Carbon monoxide, Laser dentistry, Computing systems, Semiconductor lasers, Laser scanners

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Proceedings Article | 8 February 2017 Paper

High-contrast reflectance imaging of composite restorations color-matched to tooth structure at 1000-2300-nm

William Fried, Jacob Simon, Cynthia Darling, Oanh Le, Daniel Fried

Proceedings Volume 10044, 100440J (2017) https://doi.org/10.1117/12.2256733

KEYWORDS: Composites, Near infrared, Reflectivity, Absorption, Indium gallium arsenide, Cameras, Optical filters, Dental caries, Visible radiation

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Proceedings Article | 8 February 2017 Paper

Influence of multi-wavelength laser irradiation of enamel and dentin surfaces on surface morphology and permeability

Nai-Yuan Chang, Jamison Jew, Jacob Simon, Kenneth Chan, Robert Lee, William Fried, Jinny Cho, Cynthia Darling, Daniel Fried

Proceedings Volume 10044, 100440H (2017) https://doi.org/10.1117/12.2256734

KEYWORDS: Natural surfaces, Laser irradiation, Resistance, Polarized microscopy, Microscopy, Ultraviolet radiation, Infrared lasers, Proteins, Minerals, Tissues, Gas lasers, Er:YAG lasers, Carbon monoxide, Near infrared, Reflectivity, Laser therapeutics, Thermography

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Proceedings Article | 8 February 2017 Paper

Assessment of radicular dentin permeability after irradiation with CO2 laser and endodontic irrigation treatments with thermal imaging

Heajin Cho, Robert Lee, Kenneth Chan, Daniel Fried

Proceedings Volume 10044, 100440K (2017) https://doi.org/10.1117/12.2256735

KEYWORDS: Carbon dioxide lasers, Thermography, Laser therapeutics, Chemical lasers, Cameras, Microscopy, Lasers in dentistry, Gas lasers, Carbon monoxide, Laser irradiation, Minerals, Laser dentistry, Temperature metrology

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Proceedings Article | 8 February 2017 Presentation + Paper

Near-infrared imaging of enamel hypomineralization due to developmental defects

Robert Lee, Andrew Jang, Daniel Fried

Proceedings Volume 10044, 1004408 (2017) https://doi.org/10.1117/12.2256768

KEYWORDS: Teeth, Reflectivity, Lasers in dentistry, Near infrared, Dental caries, Luminescence, Opacity, Fiber optic illuminators, Translucency, Image acquisition, Light scattering

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Proceedings Article | 8 February 2017 Paper

Synergistic effect of fluoride and laser irradiation for the inhibition of the demineralization of dental enamel

Raymond Lee, Kenneth Chan, Jamison Jew, Jacob Simon, Daniel Fried

Proceedings Volume 10044, 100440L (2017) https://doi.org/10.1117/12.2256739

KEYWORDS: Carbon dioxide lasers, Laser dentistry, Laser irradiation, Resistance, Microscopy, Lasers in dentistry, Reflectivity, Gas lasers, Optical coherence tomography, Teeth, Pulsed laser operation, Dental caries, Polarization

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Proceedings Article | 8 February 2017 Presentation + Paper

Automated ablation of dental composite using an IR pulsed laser coupled to a plume emission spectral feedback system

Andrew Jang, Kenneth Chan, Daniel Fried

Proceedings Volume 10044, 100440E (2017) https://doi.org/10.1117/12.2256698

KEYWORDS: Composites, Laser ablation, Carbon dioxide lasers, In vitro testing, Optical coherence tomography, Laser systems engineering, Teeth, Dental materials, Infrared detectors, Infrared lasers, Photodiodes, Pulsed laser operation, Gas lasers, Laser dentistry

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Proceedings Article | 8 February 2017 Presentation + Paper

Assessment of cavitation in artificial approximal dental lesions with near-IR imaging

Jacob Simon, Cynthia Darling, Daniel Fried

Proceedings Volume 10044, 1004407 (2017) https://doi.org/10.1117/12.2256701

KEYWORDS: Cavitation, Near infrared, Radiography, Imaging technologies, Diagnostics, New and emerging technologies, Transparency, Visualization, Optical coherence tomography, Teeth, Reflectivity, Optical filters, Dental caries, Cameras, Signal detection

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Proceedings Article | 8 February 2017 Paper

Selective removal of natural caries lesions from dentin and tooth occlusal surfaces using a diode-pumped Er:YAG laser

Jamison Jew, Kenneth Chan, Cynthia Darling, Daniel Fried

Proceedings Volume 10044, 100440I (2017) https://doi.org/10.1117/12.2256728

KEYWORDS: Er:YAG lasers, Teeth, Laser ablation, Pulsed laser operation, Minerals, Dental caries, Diode pumped solid state lasers, 3D acquisition, Digital imaging, 3D image reconstruction

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SPIE Journal Paper | 1 February 2017 Open Access

Influence of a pulsed CO₂ laser operating at 9.4 μm on the surface morphology, reflectivity, and acid resistance of dental enamel below the threshold for melting

Jin Wan Kim, Raymond Lee, Kenneth Chan, Jamison Jew, Daniel Fried

JBO, Vol. 22, Issue 02, 028001, (February 2017) https://doi.org/10.1117/12.10.1117/1.JBO.22.2.028001

KEYWORDS: Reflectivity, Laser irradiation, Gas lasers, Resistance, Teeth, Carbon monoxide, Pulsed laser operation, Optical coherence tomography, Laser damage threshold, Microscopy

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SPIE Journal Paper | 12 April 2016 Open Access

Use of an optical clearing agent to enhance the visibility of subsurface structures and lesions from tooth occlusal surfaces

Hobin Kang, Cynthia Darling, Daniel Fried

JBO, Vol. 21, Issue 08, 081206, (April 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.8.081206

KEYWORDS: Optical coherence tomography, Virtual point source, Teeth, Optical clearing, Visibility, Reflectivity, Imaging systems, Dental caries, Microscopy, Reflection

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