Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
  • Users Online: 235
  • Home
  • Print this page
  • Email this page
ORIGINAL ARTICLE
Year : 2015  |  Volume : 12  |  Issue : 6  |  Page : 581-588

Coronal microleakage of three different dental biomaterials as intra-orifice barrier during nonvital bleaching


1 Department of Restorative Dentistry, Sari Dental School, Mazandaran University of Medical Sciences, Sari, Iran
2 Iranian Center for Endodontic Research, Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3 Children and Adolescent Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
4 Department of Microbiology, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
5 Department of Immunology, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
6 Department of Endodontics, Sari Dental School, Mazanaran University of Medical Sciences, Sari, Iran

Correspondence Address:
Mohsen Ramazani
Department of Endodontics, Sari Dental School, Mazandaran University of Medical Sciences, Sari
Iran
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1735-3327.170582

Rights and Permissions

Background: This study was designed to assess the microleakage of glass-ionomer (GI), mineral trioxide aggregate (MTA), and calcium-enriched mixture (CEM) cement as coronal orifice barrier during walking bleaching. Materials and Methods: In this experimental study, endodontic treatment was done for 70 extracted human incisors without canal calcification, caries, restoration, resorption, or cracks. The teeth were then divided into three experimental using "Simple randomization allocation" (n = 20) and two control groups (n = 5). The three cements were applied as 3-mm intra-orifice barrier in test groups, and bleaching process was then conducted using a mixture of sodium perborate powder and distilled water, for 9 days. For leakage evaluation, bovine serum albumin marker was traced in a dual-chamber technique with Bradford indicator. The Kruskal-Wallis and Mann-Whitney tests were used for statistical analysis. Results: The mean ± standard deviation leakage of samples from negative control, positive control, GI, MTA, and CEM cement groups were 0.0, 8.9 ± 0.03, 0.47 ± 0.02, 0.48 ± 0.02, and 0.49 ± 0.02 mg/mL, respectively. Statistical analysis showed no significant difference between three experimental groups (P > 0.05). Conclusion: It is concluded that GI, MTA, and CEM cements are considered as suitable intra-orifice barrier to provide coronal seal during walking bleaching.


[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
    Viewed2297    
    Printed19    
    Emailed0    
    PDF Downloaded336    
    Comments [Add]    
    Cited by others 1    

Recommend this journal