Evaluation of microleakage of root canal fillings irradiated with different output powers of erbium, chromium:yttrium-scandium-gallium-garnet laser.

Abstract

This study evaluated the root canal seal achieved by irradiation with an erbium, chromium:yttrium-scandium-gallium-garnet laser, and the optimal output power to remove debris and the smear layer were determined. One hundred mandibular premolar teeth were prepared and divided into four groups. Group 1 was not lased but was irrigated with 5 mL of 5.25% NaOCl and 5 mL of 17% ethylenediaminetetraacetic acid. Group 2 was irradiated at a panel setting of 1 W, group 3 at 2 W and group 4 at 2.5 W, with a 50% water level and 48% air-cooling level. Root canals were obturated by cold lateral compaction, and apical microleakage was measured using a fluid filtration model. The remaining debris and smear layer were evaluated via scanning electron microscopy. Statistically significant differences were detected between groups. Irradiation at 1 and 2 W using an erbium, chromium:yttrium-scandium-gallium-garnet laser produced a seal superior to that of the other treatments.

• Authors: Senem Yiğit Özer, Emine Basaran
• Journal: Australian endodontic journal : the journal of the Australian Society of Endodontology Inc (Aust Endod J) Vol. 39 Issue 1 Pg. 8-14 (Apr 2013) ISSN: 1747-4477 [Electronic] Australia
• PMID: 23551507 (Publication Type: Journal Article)
• Copyright: © 2010 The Authors. Australian Endodontic Journal © 2010 Australian Society of Endodontology.

Chemical References

• Root Canal Filling Materials
• Root Canal Irrigants
• Gutta-Percha
• Edetic Acid
• Sodium Hypochlorite

Topics

• Dental Leakage (classification)
• Dental Pulp Cavity (radiation effects, ultrastructure)
• Dentin (radiation effects, ultrastructure)
• Edetic Acid (therapeutic use)
• Gutta-Percha (therapeutic use)
• Humans
• Lasers, Solid-State (therapeutic use)
• Low-Level Light Therapy (instrumentation)
• Microscopy, Electron, Scanning
• Radiotherapy Dosage
• Root Canal Filling Materials (therapeutic use)
• Root Canal Irrigants (therapeutic use)
• Root Canal Obturation (methods)
• Root Canal Preparation (instrumentation)
• Smear Layer
• Sodium Hypochlorite (therapeutic use)
• Tooth Apex (pathology)