Theoretical analysis of dental demineralization using photothermal radiometry

A coupled diffuse-photon-density-wave and thermal-wave theoretical model was developed to describe the biothermophotonic phenomena in a turbid medium under photothermal radiometry experimental conditions. The solution of the radiative transport equation in the limit of the diffuse-photon-density field was considered as a source term in the thermal-wave field equation. The model was used to analyze laser induced photothermal phenomena in a demineralized tooth sample as a function of depth. The analysis is based on a three-layer approach (demineralized enamel + healthy enamel + dentin) and considering the influence of thermal and optical properties of each layer on the resulting optical and thermal field.

[1]  S L Jacques,et al.  Pulsed photothermal radiometry of port-wine-stain lesions. , 1993, Applied optics.

[2]  Daniel Fried,et al.  Optical properties of dental enamel in the mid-IR determined by pulsed photothermal radiometry , 1999 .

[3]  J. Featherstone,et al.  Nature of light scattering in dental enamel and dentin at visible and near-infrared wavelengths. , 1995, Applied optics.

[4]  A J Welch,et al.  Non-contact measurement of thermal diffusivity in tissue. , 2001, Physics in medicine and biology.

[5]  P. Buschang,et al.  Sexual dimorphism in mesiodistal dentin and enamel thickness. , 1994, Dento maxillo facial radiology.

[6]  S L Jacques,et al.  Measurement of tissue optical properties by time-resolved detection of laser-induced transient stress. , 1997, Applied optics.

[7]  Andreas Mandelis,et al.  Frequency-domain theory of laser infrared photothermal radiometric detection of thermal waves generated by diffuse-photon-density wave fields in turbid media. , 2002, Physical review. E, Statistical, nonlinear, and soft matter physics.

[8]  A. Mandelis,et al.  Theoretical, experimental, and computational aspects of optical property determination of turbid media by using frequency-domain laser infrared photothermal radiometry. , 2001, Journal of the Optical Society of America. A, Optics, image science, and vision.

[9]  Bruce J. Tromberg,et al.  Tissue characterization and imaging using photon density waves , 1993 .

[10]  Alexander A. Oraevsky,et al.  Distribution of the laser radiation intensity in turbid media: Monte Carlo simulations, theoretical analysis, and results of optoacoustic measurements , 2002 .

[11]  A. Mandelis.  Diffusion-wave fields : mathematical methods and Green functions , 2001 .

[12]  M W Berns,et al.  Reflectance measurements of layered media with diffuse photon-density waves: a potential tool for evaluating deep burns and subcutaneous lesions. , 1999, Physics in medicine and biology.

[13]  A Ishimaru,et al.  Diffusion of light in turbid material. , 1989, Applied optics.

[14]  S L Jacques,et al.  Pulsed photothermal radiometry in turbid media: internal reflection of backscattered radiation strongly influences optical dosimetry. , 1989, Applied optics.

[15]  Daniel Fried,et al.  Thermal response of hard dental tissues to 9‐ through 11‐μm CO2‐laser irradiation , 1996 .

[16]  A. Mandelis,et al.  Novel dental dynamic depth profilometric imaging using simultaneous frequency-domain infrared photothermal radiometry and laser luminescence. , 2000, Journal of biomedical optics.

[17]  Andreas Mandelis,et al.  Structure and the Reflectionless/Refractionless Nature of Parabolic Diffusion-Wave Fields , 2001 .

[18]  Akira Ishimaru,et al.  Scattering and diffusion of a beam wave in randomly distributed scatterers , 1983 .

[19]  Tanya M. Smith,et al.  Modern human molar enamel thickness and enamel-dentine junction shape. , 2006, Archives of oral biology.

[20]  A. Mandelis,et al.  Quantitative dental measurements by use of simultaneous frequency-domain laser infrared photothermal radiometry and luminescence. , 2002, Applied optics.

[21]  R. Anderson,et al.  Determination of optical properties of turbid media using pulsed photothermal radiometry , 1992, Physics in medicine and biology.

[22]  A. Mandelis,et al.  Theoretical analysis of coupled diffuse-photon-density and thermal-wave field depth profiles photothermally generated in layered turbid dental structures , 2009 .

[23]  W. S. Brown,et al.  Thermal Properties of Teeth , 1970, Journal of dental research.

[24]  J M Schmitt,et al.  Multilayer model of photon diffusion in skin. , 1990, Journal of the Optical Society of America. A, Optics and image science.

[25]  M. Patterson,et al.  Noninvasive determination of the optical properties of two-layered turbid media , 1998 .

[26]  M. Braden,et al.  HEAT CONDUCTION IN NORMAL HUMAN TEETH. , 1964, Archives of oral biology.