PMID: 9550028Jun 1, 1997Paper

Effect of laser treatment on the root canal of human teeth

Endodontics & Dental Traumatology
M A KhanKoukichi Matsumoto

Abstract

The purpose of this study was to examine the morphological and temperature changes of the apical portion of human extracted teeth treated by Nd: YAG, CO2 and Argon-lasers. Seventy-two single-rooted human teeth were studied. The root canals were prepared conventionally. Laser treatment of the apical portion of the canal was carried out by means of an optic fiber or metal tip. Temperatures were recorded thermographically. Two-thirds of the specimens were stained with black India ink and 36% silver ammonium fluoride solution. All specimens were irradiated by the three types of lasers at several intensities and the temperatures were recorded. Half of the specimens were prepared for the telescopic light microscope and for scanning electron microscopic observation, and the rest for histopathological examination by light microscope. The scanning electron microscopic evaluation showed that the laser energy vaporized the deposited debris, producing a glaze-like surface. The histopathological investigation revealed a tapered, enlarged apical lased area. All three laser devices were capable of vaporizing the debris in this way but the degree of morphological change was highly dependent on energy level and duration. The Argon-laser produce...Continue Reading

References

Jun 1, 1992·Journal of Endodontics·E L PashleyD H Pashley
Mar 1, 1987·Journal of Endodontics·D R FairbournS Montgomery
Jan 1, 1985·Archives of Oral Biology·D H Pashley, S E Galloway
Jan 1, 1974·Journal of Oral Pathology·H Yamamoto, K Ooya
Nov 1, 1972·Oral Surgery, Oral Medicine, and Oral Pathology·J A WeichmanL K Nitta
Mar 1, 1971·Oral Surgery, Oral Medicine, and Oral Pathology·J A Weichman, F M Johnson

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Citations

Jul 31, 2007·Lasers in Medical Science·Bağdagül Helvacioğlu KivançGüliz Görgül
Sep 8, 2005·Photomedicine and Laser Surgery·Samira Esteves Afonso CamargoMarcia Maciel Menezes
Feb 28, 2003·Lasers in Surgery and Medicine·M KreislerB D'Hoedt
May 7, 2005·International Endodontic Journal·F J H W DepraetR J G De Moor
Apr 10, 2010·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Hidetoshi SaegusaHideaki Suda
Jan 25, 2002·Journal of Endodontics·Matthias FolwacznyReinhard Hickel
Apr 20, 2001·International Endodontic Journal·Y KimuraK Matsumoto
Jul 27, 2004·Journal of Endodontics·Marouan G KhabbazEirini Papagiakoumou

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