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Proceedings Paper

In-vitro evaluation of adhesion to human dentine of different canal sealers after Er:YAG laser application
Author(s): Manoel D. Sousa-Neto D.D.S.; Melissa A. Marchesan; Jesus Djalma Pecora D.D.S.; Aldo Brugnera Jr.; Yara T.C. Silva-Sousa D.D.S.; Paulo C. Saquy D.D.S.
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Paper Abstract

Adhesion of endodontic sealers to root canal walls is a property material must have to promote a hermetic seal of the root canal. The present study evaluates the effect of Er:YAG laser applied to human dentine in vitro on adhesion of Grossman, Endomethasone, N-Rickert and Sealer 26 root canal sealers. The crowns of 40 human molars were cut on the occlusal side until a flat dentine surface was obtained. The teeth were divided into 2 groups: group 1, saline solution; group 2, irradiation with Er:YAG laser (KaVo Key Laser 2; 11 mm focal distance, perpendicular to the dentine surface, 4 Hz frequency, 200 mJ energy, 62 J total energy and 313 pulses, one minute application time and 2.25 W power). Five repetitions were done for each sealer and each group. An Instron universal testing machine was used for the adhesion test.The results showed a statistically significant difference at 1% for the sealers and the dentine surface treatments. Sealer 26 showed the best adhesion both with laser application and saline. Application of Er:YAG laser did not alter the adhesion of Grossman, N-Rickert or Endomethasone sealers compared to saline; however, laser application increased the adhesion of Sealer 26.

Paper Details

Date Published: 24 March 2000
PDF: 6 pages
Proc. SPIE 3910, Lasers in Dentistry VI, (24 March 2000); doi: 10.1117/12.380815
Show Author Affiliations
Manoel D. Sousa-Neto D.D.S., Univ. de Ribeirao Preto (Brazil)
Melissa A. Marchesan, Univ. de Sao Paulo (Brazil)
Jesus Djalma Pecora D.D.S., Univ. de Sao Paulo (Brazil)
Aldo Brugnera Jr., Univ. Camilo Castelo Branco (Brazil)
Yara T.C. Silva-Sousa D.D.S., Univ. de Ribeirao Preto (Brazil)
Paulo C. Saquy D.D.S., Univ. de Ribeirao Preto (Brazil)

Published in SPIE Proceedings Vol. 3910:
Lasers in Dentistry VI
John D. B. Featherstone; Peter Rechmann D.D.S.; Daniel Fried, Editor(s)

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