Print this page Email this page Users Online: 11
Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
ORIGINAL ARTICLE
Year : 2015  |  Volume : 9  |  Issue : 2  |  Page : 69-74

The effect of 808 nm diode laser irradiation on shear bond strength of composite bonded to dentin before and after bonding


1 Department of Operative Dentistry, School of Dentistry, Islamic Azad University, Khorasgan, Iran
2 Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Science, Khorasgan, Isfahan, Iran, India
3 Department of Periodontics, School of Dentistry, Islamic Azad University, Khorasgan, Isfahan, Iran, India

Correspondence Address:
Farnoosh Alizadeh
Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Science, Isfahan
Iran
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0976-2868.158465

Rights and Permissions

Objectives: As bonding ability to tooth surface is an important factor in durability of composite restorations, the aim of this in vitro study was to evaluate the effect of 808 nm diode laser irradiation with different power outputs on the shear bond strength of composite bonded to the dentin before and after applying the bonding agent. Materials and Methods: A total of 35 healthy third molars were mounted in acrylic resin in a way that each molar had two test sites and divided into seven groups of 10 each. In the control group, the bonding agent was used without laser application. An 808 nm diode laser with different power outputs of 0.5, 1 and 1.5 W for a duration of 20 s was irradiated perpendicularly to the dentin surfaces in three of the experimental groups before and in the other three groups after applying the bonding agent. After composite cylinders had been adhered, they were examined to determine their shear bond strength. Results: According to the least significant difference test, the bond strength mean significantly higher in the control group (P < 0.001) and in all laser power outputs, the mean bond strength was significantly higher in the groups for which laser was irradiated before applying the bonding agent than the groups for which laser was irradiated after applying the adhesive (P < 0.05). Conclusion: Considering the higher bond strength in the control group, it seems that applying laser does not increase the bond strength of composite to the dentin.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed3580    
    Printed175    
    Emailed0    
    PDF Downloaded299    
    Comments [Add]    
    Cited by others 2    

Recommend this journal