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Experimental Study of FEL Irradiation onto Human Enamel and Dentin
- Source :
- Journal of Hard Tissue Biology. 14:82-83
- Publication Year :
- 2005
- Publisher :
- Society for Hard Tissue Regenerative Biology, 2005.
-
Abstract
- Wavelength tunable Free Electron Laser, FEL, was irradiated onto the polished surfaces of human tooth enamel and dentin using the FEL system at Laboratory for Electron Beam Research and Application (LEBRA) in Nihon University. LEBRA-FEL system was so powerful that only 2 mJ/pulse shot resulted in an apparent pit on the surfaces. The pit showed neither marked scorch nor formation of secondary crystalline phase revealed by micro-XRD and micro-FTIR. Optimum wavelength for pit formation on the dental hard tissues was about 3.0 mm. However, the optimum wavelengths for enamel and dentin should be at 3.2 mm, 3.0 mm, respectively. The results strongly suggested that the ablation mechanism by laser irradiation for dental hard tissues might be not the simple interaction of laser beams with water, but complex phenomena, which could not be neglected of the hard tissue components and structure.
- Subjects :
- Materials science
Medicine (miscellaneous)
Dentistry
Biochemistry
law.invention
Biomaterials
Optics
stomatognathic system
law
Human tooth
Dentin
medicine
Orthopedics and Sports Medicine
Irradiation
General Dentistry
Enamel paint
business.industry
Free-electron laser
Cell Biology
Laser
stomatognathic diseases
Wavelength
medicine.anatomical_structure
visual_art
Cathode ray
visual_art.visual_art_medium
business
Subjects
Details
- ISSN :
- 13417649
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Journal of Hard Tissue Biology
- Accession number :
- edsair.doi...........dc3e04bfae3e41fb3cd7c446bcbcd8c0