Abstract | OBJECTIVE: The purpose of this study was to compare the efficacy of Er,Cr: YSGG laser in root canal preparation and its effectiveness in removing debris and smear layer with the efficacy of the conventional hand instrument, in vitro. BACKGROUND DATA: MATERIALS AND METHODS: A total of 40 straight root canals were prepared by an Er,Cr: YSGG laser at a output power of 2 W, and 40 canals were shaped by using the K file under irrigation with NaOCl and H2O2 by using the crown-down technique (control). The achievement degree of root canal preparation and debris score was morphologically investigated. RESULTS: The results showed that great improvement in the cleanliness of the walls was found using the laser technique as compared with the control technique; a significant decrease in smear layer or debris was also recognized in laser-prepared canals (p < 0.01). But canal preparations with the laser device sometime result in ledge, zipped, perforation, or over-instrumentation. CONCLUSION:
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Authors | Mir Nowazesh Ali, Mozammal Hossain, Yukio Nakamura, Emi Matsuoka, Jun-Ichiro Kinoshita, Koukichi Matsumoto |
Journal | Photomedicine and laser surgery
(Photomed Laser Surg)
Vol. 23
Issue 2
Pg. 196-201
(Apr 2005)
ISSN: 1549-5418 [Print] United States |
PMID | 15910186
(Publication Type: Journal Article)
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Chemical References |
- Anti-Infective Agents, Local
- Disinfectants
- Hydrogen Peroxide
- Sodium Hypochlorite
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Topics |
- Anti-Infective Agents, Local
(administration & dosage)
- Case-Control Studies
- Dental Pulp Cavity
(radiation effects)
- Dentin
(radiation effects)
- Disinfectants
(administration & dosage)
- Humans
- Hydrogen Peroxide
(administration & dosage)
- In Vitro Techniques
- Laser Therapy
- Microscopy, Electron, Scanning
- Root Canal Preparation
(instrumentation, methods)
- Smear Layer
- Sodium Hypochlorite
(administration & dosage)
- Surface Properties
- Tooth Root
(radiation effects)
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