Reflection of laser light from a human enamel-dentin structure

Autor:	Tzonko T. Uzunov, Elena V. Stoykova, Dimitar Slavov
Rok vydání:	2001
Předmět:	Photon Materials science Enamel paint Scattering business.industry Tooth surface Laser law.invention stomatognathic diseases Optics stomatognathic system law visual_art Reflection (physics) visual_art.visual_art_medium Anisotropy Absorption (electromagnetic radiation) business
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.425178
Popis:	In the present work we report the results of the measurement of the angular distribution of laser light reflected from a rough tooth surface and of Monte Carlo simulation of the 3-D process of photons migration in a two-layered human enamel- dentin structure. The measured reflected patterns are as a whole asymmetric and more spread than the calculated by the simulation. The measured total diffusely reflected power reaches 3 - 20% from the irradiating power. An increase in the total absorbed energy as well as in the spread of absorption is observed below the enamel-dentin interface. The scattering anisotropy affects in a different way the absorption below the tooth surface: the highly forward peaked phase function leads to decrease of absorption just below the air-enamel boundary and rise of absorption below the enamel-dentin boundary.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d92d5f911fc3b10335890f7aeb09656a https://doi.org/10.1117/12.425178 Zobrazit plný text záznamu