In-vitro evaluation of adhesion to human dentine of different canal sealers after Er:YAG laser application

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.

doi:10.1117/12.380815

24 March 2000 In-vitro evaluation of adhesion to human dentine of different canal sealers after Er:YAG laser application

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.

Author Affiliations +

Proceedings Volume 3910, Lasers in Dentistry VI; (2000) https://doi.org/10.1117/12.380815
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

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.

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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., and Paulo C. Saquy D.D.S. "In-vitro evaluation of adhesion to human dentine of different canal sealers after Er:YAG laser application", Proc. SPIE 3910, Lasers in Dentistry VI, (24 March 2000); https://doi.org/10.1117/12.380815

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