Home Print this page Email this page Small font size Default font size Increase font size   Users Online: 250
Home About us Editorial board Search Browse articles Submit article Instructions Subscribe Contacts Login 
Year : 2016  |  Volume : 5  |  Issue : 4  |  Page : 127-131

Comparative evaluation and influence on shear bond strength of incorporating silver, zinc oxide, and titanium dioxide nanoparticles in orthodontic adhesive

1 Department of Orthodontics, SVS Institute of Dental Sciences, Mahabubnagar, Telangana, India
2 Department of Orthodontics, Darshan Dental College and Hospital, Udaipur, Rajasthan, India
3 Department of Oral Medicine and Radiology, College of Dentistry, Al Jouf University, Sakaka, Aljouf, Saudi Arabia

Correspondence Address:
Santosh R Patil
Department of Oral Medicine and Radiology, College of Dentistry, Al Jouf University, Sakaka, Aljouf
Saudi Arabia
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-0203.192115

Rights and Permissions

Objective: To investigate the influence of silver (Ag), zinc oxide (ZnO), and titanium dioxide (TiO 2 ) nanoparticles on shear bond strength (SBS). Materials and Methods: One hundred and twenty extracted premolars divided into four groups with thirty specimens in each group. Group 1 (control): brackets (American Orthodontics) were bonded with Transbond XT primer. Groups 2, 3, and 4: brackets (American Orthodontics) were bonded with adhesives incorporated with Ag, ZnO, and TiO 2 nanoparticles in the concentration of 1.0% nanoparticles of Ag, 1.0% TiO 2 , and 1.0% ZnO weight/weight, respectively. An "Instron" universal testing machine AGS-10k NG (SHIMADZU) was used to measure the SBS. The data were analyzed by SPSS software and then, the normal distribution of the data was confirmed by Kolmogorov-Smirnov test. One-way ANOVA test and Tukey's multiple post hoc procedures were used to compare between groups. In all statistical tests, the significance level was set at 5% (P < 0.05). Results: A significant difference was observed between control (mean [standard deviation (SD)] 9.43 [3.03], confidence interval [CI]: 8.30-10.56), Ag (mean [SD]: 7.55 [1.29], CI: 7.07-8.03), ZnO (mean [SD]: 6.50 [1.15], CI: 6.07-6.93), and TiO 2 (mean [SD]: 6.33 [1.51], CI: 5.77-0.89) with SBS (F = 16.8453, P < 0.05) at 5% level of significance. Conclusion: Incorporation of various nanoparticles into adhesive materials in minimal amounts may decrease SBS and may lead to the failure of bracket or adhesive. The limitation of this study is that it is an in vitro research and these results may not be comparable to what the expected bond strengths observed in vivo. Further clinical studies are needed to evaluate biological effects of adding such amounts of nanoparticles and approve such adhesives as clinically sustainable.

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
    PDF Downloaded380    
    Comments [Add]    
    Cited by others 11    

Recommend this journal