Journal of Conservative Dentistry
Home About us Editorial Board Instructions Submission Subscribe Advertise Contact e-Alerts Login 
Users Online: 7885
Print this page  Email this page Bookmark this page Small font sizeDefault font sizeIncrease font size
Year : 2008  |  Volume : 11  |  Issue : 4  |  Page : 154-158

Comparative evaluation of self-etching primers with fourth and fifth generation dentin-bonding systems on carious and normal dentin substrates: An in vitro shear bond strength analysis

1 Department of Conservative Dentistry and Endodontics, K. L. E. V. K. Institute of Dental Sciences, J. N. M. C. Campus, Nehrunagar, Belgaum - 590 010, Karnataka, India
2 Department of Conservative Dentistry and Endodontics, A. J. Institute of Dental Sciences, Kuntikana, Mangalore - 575 004, India

Correspondence Address:
Ramesh H Giriyappa
Department of Conservative Dentistry and Endodontics, K. L. E. V. K. Institute of Dental Sciences, Belgaum
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-0707.48839

Rights and Permissions

Aim: The aim of this study was to test the hypothesis that bonding to caries-affected dentin would yield strengths that are lower than bond strengths achievable when bonded to normal dentin. Dentin-bonding systems used in this study were fourth and fifth generation as well as self-etching primers. Materials and Methods: Forty-eight freshly extracted mandibular and maxillary molars were selected of which 24 were caries-affected teeth and the remaining were noncarious teeth. Random sampling was done with eight teeth in each group based on the bonding system used. In caries-affected teeth, the soft, stainable, caries-infected dentin was excavated using a caries detector dye whereas the hard, caries-affected, nonstainable dentin was retained. All the teeth were subsequently mounted in a suitable acrylic mould. Prepared teeth were restored with a single composite resin, using three different dentin bonding systems. These prepared specimens were transferred to a Hounsfield tensometer to measure the shear bond strength. The results obtained were analyzed using Anova, Student's unpaired t-test, and Student Neuman Keulis test. Results: The results showed that the self-etching primer required the highest mean shear load compared to the fifth and fourth generation dentin-bonding systems in both normal dentin and caries-affected dentin. Conclusion: Bond strength to dentin depends on whether the dentinal tubule is open or occluded. Within the limitations of this study, it was observed that bond strength to caries-affected dentin was low compared to normal dentin.

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 Downloaded284    
    Comments [Add]    
    Cited by others 2    

Recommend this journal