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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/28576
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- Title
- Precision ablation of dental enamel using a subpicosecond pulsed laser
- Related
- Australian dental journal, Vol. 48, Issue 4, p.233-239
- DOI
- 10.1111/j.1834-7819.2003.tb00036.x
- Publisher
- Australian Dental Association
- Date
- 2003
- Author/Creator
- Rode, A. V
- Author/Creator
- Gamaly, E. G
- Author/Creator
- Luther-Davies, B
- Author/Creator
- Taylor, B. T
- Author/Creator
- Graessel, M
- Author/Creator
- Dawes, J. M
- Author/Creator
- Chan, A
- Author/Creator
- Lowe, R. M
- Author/Creator
- Hannaford, P
- Description
- In this study we report the use of ultra-short-pulsed near-infrared lasers for precision laser ablation of freshly extracted human teeth. The laser wavelength was ~800nm, with pulsewidths of 95 and 150fs, and pulse repetition rates of 1kHz. The laser beam was focused to an approximate diameter of 50μm and was scanned over the tooth surface. The rise in the intrapulpal temperature was monitored by embedded thermocouples, and was shown to remain below 5°C when the tooth was air-cooled during laser treatment. The surface preparation of the ablated teeth, observed by optical and electron microscopy, showed no apparent cracking or heat effects, and the hardness and Raman spectra of the laser-treated enamel were not distinguishable from those of native enamel. This study indicates the potential for ultra-short-pulsed lasers to effect precision ablation of dental enamel.
- Description
- 7 page(s)
- Subject Keyword
- 110500 Dentistry
- Subject Keyword
- laser treatment
- Subject Keyword
- subpicosecond laser ablation
- Subject Keyword
- temperature monitoring
- Subject Keyword
- dental enamel
- Resource Type
- journal article
- Organisation
- Macquarie University. Deptartment of Physics
- Identifier
- http://hdl.handle.net/1959.14/28576
- Identifier
- mq:4060
- Identifier
- ISSN:0045-0421
- Identifier
- mq-rm-2003018083
- Language
- eng
- Reviewed
Macquarie University ResearchOnline
