Effects of 980-nm diode laser on the ultrastructure and fracture resistance of dentine

Few reports have addressed the effects of diode laser irradiation at 980 nm on the morphology and fracture resistance of dentine. The purpose of this study is to evaluate the effects of 980-nm diode laser on the ultrastructure and fracture resistance of root dentine. The roots of 90 extracted canine...

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Bibliographic Details
Published in:Lasers in medical science 2013-01, Vol.28 (1), p.275-280
Main Authors: Faria, Maria Isabel Anastacio, Sousa-Neto, Manoel Damião, Souza-Gabriel, Aline Evangelista, Alfredo, Edson, Romeo, Umberto, Silva-Sousa, Yara Teresinha Correa
Format: Article
Language:English
Subjects:
Analysis of Variance
Animals
Cuspid
Dental research
Dentin
Dentin - radiation effects
Dentin - ultrastructure
Dentistry
Fractures
In Vitro Techniques
Lasers
Lasers, Semiconductor
Light emitting diodes
Materials Testing
Maxillofacial surgery
Medicine
Medicine & Public Health
Microscopy, Electron, Scanning
Optical Devices
Optics
Original Article
Photonics
Quantum Optics
Random Allocation
Root Canal Preparation - instrumentation
Root Canal Preparation - methods
Smear Layer
Surface Properties
Tooth Fractures - physiopathology
Tooth Root - physiopathology
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Summary:Few reports have addressed the effects of diode laser irradiation at 980 nm on the morphology and fracture resistance of dentine. The purpose of this study is to evaluate the effects of 980-nm diode laser on the ultrastructure and fracture resistance of root dentine. The roots of 90 extracted canine teeth were divided into three groups according to the type of irrigating solution (water, NaOCl, and NaOCl/EDTA) and subdivided into three subgroups ( n  = 10) according to the amount of laser irradiation (without irradiation, 1.5 W/100 Hz and 3.0 W/100 Hz). The roots were filled with an epoxy resin - based sealer and gutta-percha and then subjected to a fracture resistance test. Data were analyzed by ANOVA and the Tukey test ( p  
ISSN:0268-8921
1435-604X
DOI:10.1007/s10103-012-1147-7