Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Adam Hellen"'
Autor:
Sony Mathew, Bennett T. Amaechi, Adam Hellen, Koneswaran Sivagurunathan, Poornima K. Mensinkai, Stephen H. Abrams, Bonny P. Y. Wong, Andreas Mandelis, Josh Silvertown, Warren Hellen, Gary I. Elman
Publikováno v:
The Open Dentistry Journal
Introduction:The aim of this study was to correlate lesion depth of natural caries, measured with Polarized Light Microscopy (PLM), to Canary Numbers (CN) derived from The Canary System™ (CS), numerical readings from DIAGNOdent (DD), and lesion sco
Autor:
Jin-Seok Jeon, Koneswaran Sivagurunathan, Gary I. Elman, Julia Kennedy, Adam Hellen, Yoav Finer, Bennett T. Amaechi, Raffy Chouljian, Stephen H. Abrams, Andreas Mandelis, Warren Hellen, Richard Ehrlich, Josh Silvertown
Publikováno v:
The Open Dentistry Journal
Introduction:A clinical study was initiated to investigate a caries detection device (The Canary System (CS)), based on photothermal radiometry and modulated luminescence (PTR-LUM). The primary objective of this study was to determine if PTR-LUM valu
Publikováno v:
Journal of biomedical optics. 16(7)
Photothermal radiometry and modulated luminescence (PTR-LUM) is an emerging nondestructive methodology applied toward the characterization and quantification of dental caries. We evaluate the efficacy of PTR-LUM in vitro to detect, monitor, and quant
Publikováno v:
Journal of biophotonics. 4(11-12)
Human molars were subjected to demineralization in acid gel followed by incubation in remineralization solutions without or with fluoride (1 or 1000 ppm). Photothermal radiometry (PTR) and modulated luminescence (LUM) frequency scans were performed p
Publikováno v:
SPIE Proceedings.
Photothermal radiometry and modulated luminescence (PTR-LUM) is a non-destructive methodology applied toward the detection, monitoring and quantification of dental caries. The purpose of this study was to evaluate the efficacy of PTRLUM to detect inc
Publikováno v:
Photonic Therapeutics and Diagnostics VI.
The development of photothermal techniques to detect thermal waves in biological tissue has occurred with a concomitant advancement in the extraction of material thermophysical properties and knowledge regarding the internal structure of a medium. Hu
Autor:
Andreas Mandelis, Anna Matvienko, Bennett T. Amaechi, Raymond J. Jeon, Stephen H. Abrams, Adam Hellen
Publikováno v:
Optics in Bone Biology and Diagnostics.
A coupled diffuse-photon-density-wave and thermal-wave theoretical model was developed to describe the biothermophotonic phenomena in multi-layered hard tissue structures. Photothermal Radiometry was applied as a safe, non-destructive, and highly sen
Autor:
Raymond J. Jeon, Andreas Mandelis, Bennett T. Amaechi, Stephen H. Abrams, Adam Hellen, Anna Matvienko
Publikováno v:
Journal of biomedical optics. 13(3)
Artificially created demineralized and remineralized carious lesions on the root and enamel of human teeth were examined by photothermal radiometry (PTR) and modulated luminescence (LUM). Fourteen extracted human teeth were used and a lesion was crea
Autor:
Adam Hellen, Raymond J. Jeon, Stephen H. Abrams, Anna Matvienko, Bennett T. Amaechi, Andreas Mandelis
Publikováno v:
SPIE Proceedings.
Photothermal radiometry (PTR) and modulated luminescence (LUM) were applied to detect and monitor the demineralization of root and enamel surfaces of human teeth to produce caries lesions and the subsequent remineralization of the produced lesions. T
Publikováno v:
Applied Optics. 49:6938
Noninvasive dental diagnostics is a growing discipline since it has been established that early detection and quantification of tooth mineral loss can reverse caries lesions in their incipient state. A theoretical coupled diffuse photon density and t