1. State University of New York at Buffalo

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    1. Mentioned In 23 Articles

    2. Optical Coherence Tomography and neurodegeneration: are eyes the windows to the brain?

      Optical Coherence Tomography and neurodegeneration: are eyes the windows to the brain?
      Central nervous system (CNS) pathologies have ocular manifestations due to direct and/or retrograde degeneration of the visual pathways, most often related to a direct injury to the optic nerve, retinal ganglion cells and/or its surrounding cells. These ocular manifestations can be recognized and monitored by a non-invasive technique called Optical Coherence Tomography (OCT). OCT helps in the measurement of retinal nerve fiber layer (RNFL) thickness and macular thickness ...
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    3. Dual-modal photoacoustic and optical coherence tomography using a single near-infrared supercontinuum laser source

      Dual-modal photoacoustic and optical coherence tomography using a single near-infrared supercontinuum laser source
      We report the development of a combined dual-modal photoacoustic and optical coherence tomography (PA-OCT) system using a single near-infrared (NIR) supercontinuum laser source which can provide both optical absorption and scattering contrasts simultaneously. By using a small sized pulsed Nd:YAG microchip laser and a photonic crystal fiber, we fabricated a pulsed broadband supercontinuum source from 600 to 1700 nm. Under the same optical hardware system, intrinsically registered PA and ...
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    4. Non-destructive characterization of voids in six flowable composites using swept-source optical coherence tomography

      Non-destructive characterization of voids in six flowable composites using swept-source optical coherence tomography
      Objective The aim of this study was to evaluate the void frequency ( V F ) and void volume ( V V ) in different flowable composites using swept-source optical coherence tomography (SS-OCT). Methods Standard class I cavities were prepared and filled with six different flowable composites: Clearfil Majesty LV (MJ; Kuraray), MI Flow (MW; GC), MI Fil (ML; GC), Beautifil flow plus (BF; Shofu), Palfique Estelite low flow (EL; Tokuyama) and Surefil SDR ...
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    5. In situ gold nanoparticles formation: contrast agent for dental optical coherence tomography

      In situ gold nanoparticles formation: contrast agent for dental optical coherence tomography
      In this work we demonstrate the potential use of gold nanoparticles as contrast agents for the optical coherence tomography (OCT) imaging technique in dentistry. Here, a new in situ photothermal reduction procedure was developed, producing spherical gold nanoparticles inside dentinal layers and tubules. Gold ions were dispersed in the primer of commercially available dental bonding systems. After the application and permeation in dentin by the modified adhesive systems, the dental ...
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    6. Effect of hydration on assessment of early enamel lesion using swept-source optical coherence tomography

      Effect of hydration on assessment of early enamel lesion using swept-source optical coherence tomography
      Establishing reproducible methodologies for assessment of early enamel lesions using optical coherence tomography (OCT) appears to be challenging. This in vitro study longitudinally evaluated the subsurface enamel lesion progression after 3, 9 and 15 days by cross-sectional scanning using 1310 nm centered swept-source OCT (SS-OCT) under hydrated and dry conditions. The positive difference between the depth-integrated OCT signals at dry and hydrated conditions were calculated and adopted as dehydration parameter ...
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    7. Efficient searching of globally optimal and smooth multisurfaces with shape priors

      Efficient searching of globally optimal and smooth multisurfaces with shape priors
      Despite extensive studies in the past, the problem of segmenting globally optimal multiple surfaces in 3D volumetric images remains challenging in medical imaging. The problem becomes even harder in highly noisy and edge-weak images. In this paper we present a novel and highly efficient graph-theoretical iterative method based on a volumetric graph representation of the 3D image that incorporates curvature and shape prior information. Compared with the graph-based method, applying ...
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    8. Faster Segmentation Algorithm for Optical Coherence Tomography Images with Guaranteed Smoothness

      Faster Segmentation Algorithm for Optical Coherence Tomography Images with Guaranteed Smoothness
      This paper considers the problem of segmenting an accurate and smooth surface from 3D volumetric images. Despite extensive studies in the past, the segmentation problem remains challenging in medical imaging, and becomes even harder in highly noisy and edge-weak images. In this paper we present a highly efficient graph-theoretical approach for segmenting a surface from 3D OCT images. Our approach adopts an objective function that combines the weight and the ...
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    9. Biomedical implications of dental-ceramic defects investigated by numerical simulation, radiographic, microcomputer tomography, and time-domain optical coherence tomography

      Biomedical implications of dental-ceramic defects investigated by numerical simulation, radiographic, microcomputer tomography, and time-domain optical coherence tomography
      Imagistic investigation of the metal-ceramic crowns and fixed partial prostheses represent a very important issue in nowadays dentistry. At this time, in dental office, it is difficult or even impossible to evaluate a metal ceramic crown or bridge before setting it in the oral cavity. The possibilities of ceramic fractures are due to small fracture lines or material defects inside the esthetic layers. Material and methods: In this study 25 ...
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    10. Ceramic and polymeric dental onlays evaluated by photo-elasticity, optical coherence tomography, and micro-computed tomography

      Ceramic and polymeric dental onlays evaluated by photo-elasticity, optical coherence tomography, and micro-computed tomography
      Dental onlays are restorations used to repair rear teeth that have a mild to moderate amount of decay. They can also be used to restore teeth that are cracked or fractured if the damage is not severe enough to require a dental crown. The use of onlays requires less tooth reduction than does the use of metal fillings. This allows dentists to conserve more of a patient's natural tooth ...
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    11. Imagistic evaluation of direct dental restoration: en face OCT versus SEM and microCT

      Imagistic evaluation of direct dental restoration: en face OCT versus SEM and microCT
      There are several methods known which are used to assess the quality of direct dental restorations, but most of them are invasive. These lead to the destruction of the probes and often no conclusion could be drawn in respect to the existence of any microleakage in the investigated areas of interest. Optical tomographic techniques are of particular importance in the medical imaging field, because these techniques can provide non-invasive diagnostic ...
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    12. SEM and microCT validation for en face OCT imagistic evaluation of endodontically treated human teeth

      SEM and microCT validation for en face OCT imagistic evaluation of endodontically treated human teeth
      Successful root canal treatment is based on diagnosis, treatment planning, knowledge of tooth anatomy, endodontic access cavity design, controlling the infection by thorough cleaning and shaping, methods and materials used in root canal obturation. An endodontic obturation must be a complete, three-dimensional filling of the root canal system, as close as possible to cemento-dentinal junction, without massive overfilling or underfilling. There are several known methods which are used to assess ...
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    13. Radiographic, microcomputer tomography, and optical coherence tomography investigations of ceramic interfaces

      Radiographic, microcomputer tomography, and optical coherence tomography investigations of ceramic interfaces
      Imagistic investigation of the metal-ceramic crowns and fixed partial prostheses represent a very important issue in nowadays dentistry. At this time, in dental office, it is difficult or even impossible to evaluate a metal ceramic crown or bridge before setting it in the oral cavity. The possibilities of ceramic fractures are due to small fracture lines or material defects inside the esthetic layers. Material and methods: In this study 25 ...
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    14. Morphological characterization of dental prostheses interfaces using optical coherence tomography

      Morphological characterization of dental prostheses interfaces using optical coherence tomography
      Fixed partial prostheses as integral ceramic, polymers, metal-ceramic or metal-polymers bridges are mainly used in the frontal part of the dental arch (especially the integral bridges). They have to satisfy high stress as well as esthetic requirements. The masticatory stress may induce fractures of the bridges. These may be triggered by initial materials defects or by alterations of the technological process. The fractures of these bridges lead to functional, esthetic ...
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  2. About State University of New York at Buffalo

    State University of New York at Buffalo

    University at Buffalo is part of The State University of New York.  A flagship institution in the State University of New York system, UB is the largest and most comprehensive campus in the 64-campus SUNY system. It is a member of the Association of American Universities.