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Proceedings Paper

In vitro study of the conventional and laser apicoectomy effects on dentin permeability
Author(s): Thais Cachute Paradella; Guilherme Paulo Escarpel de Mello; Egberto Munin; Marcela Leal Redigolo; Marcos T. T. Pacheco
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Paper Abstract

In the past years, lasers have become a special tool in dentistry. To study the effects of laser apicoectomy compared to the conventional surgical treatment, freshly-extracted single-root teeth were used, submitted to traditional endodontic treatment and divided into four groups: Group I, conventional apicoectomy using diamond burs; Group II, the same treatment as Group I, however, with a 15 second orthophosphoric acid application; Group III Er:YAG laser cut (10 Hz - 400 mJ); and finally, Group IV Er:YAG laser cut (10 Hz - 400 mJ) and surface treatment with Nd:YAG laser (10 Hz - 2 W). The samples were submitted to 2,5 % blue methylene dye solution, at 25 degree(s)C and 37 degree(s)C for 36 h and 18 h, respectively, and analyzed under optical microscope. The results show that Group II had the higher permeability of all the groups and Group IV had the lower one, due to the successful Nd:YAG laser surface treatment.

Paper Details

Date Published: 26 October 2001
PDF: 4 pages
Proc. SPIE 4433, Laser-Tissue Interactions, Therapeutic Applications, and Photodynamic Therapy, (26 October 2001); doi: 10.1117/12.446510
Show Author Affiliations
Thais Cachute Paradella, Univ. do Vale do Paraiba (Brazil)
Guilherme Paulo Escarpel de Mello, Univ. do Vale do Paraiba (Brazil)
Egberto Munin, Univ. do Vale do Paraiba (Brazil)
Marcela Leal Redigolo, Univ. do Vale do Paraiba (Brazil)
Marcos T. T. Pacheco, Univ. do Vale do Paraiba (Brazil)


Published in SPIE Proceedings Vol. 4433:
Laser-Tissue Interactions, Therapeutic Applications, and Photodynamic Therapy
Reginald Birngruber; Hubert van den Bergh, Editor(s)

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