Effect of Er:YAG Laser on Adhesion of Root Canal Sealers

This in vitro study evaluated the effect of Er:YAG laser on adhesion to human dentin 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 dentin surface was obtained. The teeth were divided into two groups:...

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Veröffentlicht in:Journal of endodontics 2002-03, Vol.28 (3), p.185-187
Hauptverfasser: Sousa-Neto, Manoel D., Marchesan, Melissa A., Pécora, Jesus D., Brugnera Junior, Aldo, Silva-Sousa, Yara T.C., Saquy, Paulo C.
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container_end_page 187
container_issue 3
container_start_page 185
container_title Journal of endodontics
container_volume 28
creator Sousa-Neto, Manoel D.
Marchesan, Melissa A.
Pécora, Jesus D.
Brugnera Junior, Aldo
Silva-Sousa, Yara T.C.
Saquy, Paulo C.
description This in vitro study evaluated the effect of Er:YAG laser on adhesion to human dentin 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 dentin surface was obtained. The teeth were divided into two groups: group 1, no laser application; and group 2, irradiation with Er:YAG laser (KaVo Key Laser 2; 11 mm focal distance, perpendicular to the dentin surface, 4 Hz frequency, 200 mJ energy, 62 J total energy and 313 pulses, 1-min application time, and 2.25 W power). Five samples were tested for each sealer and each group. An Instron universal testing machine was used for the adhesion test. Sealer 26 showed the best adhesion both with and without laser application (p < 0.01). Grossman and N-Rickert sealers had intermediate values, and Endomethasone had the worst adhesion. Application of Er:YAG laser did not alter the adhesion of Grossman, N-Rickert, or Endomethasone sealers. However, laser application increased the adhesion of Sealer 26. The epoxy resin-based root canal sealer (Sealer 26) adhered better to dentin prepared with and without Er:YAG laser than the zinc oxide/eugenol-based sealers (Endomethasone, N-Rickert, and Grossman).
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source MEDLINE; ScienceDirect Journals (5 years ago - present)
subjects Adhesiveness
Administration, Topical
Analysis of Variance
Anti-Inflammatory Agents
Bismuth
Calcium Hydroxide
Dental Bonding
Dentin
Dentin-Bonding Agents
Dentistry
Dexamethasone
Drug Combinations
Epoxy Resins
Erbium
Formaldehyde
Humans
Hydrocortisone
Lasers
Materials Testing
Molar
Root Canal Filling Materials
Root Canal Preparation - instrumentation
Smear Layer
Statistics, Nonparametric
Thymol - analogs & derivatives
Zinc Oxide-Eugenol Cement
title Effect of Er:YAG Laser on Adhesion of Root Canal Sealers
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