The Effect of Saliva Contamination on Shear Bond Strength of Two Universal Bonding Agents-An in vitro StudyCorrespondence Address :
Dr. Anuja Sanjay Kulkarni,
401- Om Apts, 116-118, Dr. MB Raut Road, Shivaji Park, Mumbai-400028, Maharashtra, India.
Introduction: Universal bonding agents are prevalent in dentistry today. The effects of both salivary contamination and subsequent decontamination protocols on these adhesives have not been studied extensively.
Aim: To evaluate the effect of saliva contamination and decontamination on bond strength of two universal adhesive systems.
Materials and Methods: This in vitro study was conducted in the Department of Conservative Dentistry and Endodontics, YMT Dental College and Hospital, Navi Mumbai, Maharashtra, India. Ninety permanent teeth mounted in acrylic were randomly divided into two groups based on the adhesives used; Group I- Single Bond Universal (SBU) (3M ESPE) and Group II-Tetric ®N-Bond Universal (Ivoclar Vivadent). They were further divided into three subgroups (n=15): subgroup-1) Control; subgroup-2) Contamination; subgroup-3) Decontamination (Water rinse and reapplication). After composite application, the samples were subjected to Shear Bond Strength (SBS) testing with universal testing machine. Modes of failure were examined using a stereomicroscope. Statistical analysis was carried out using one-way ANOVA test and Tukeys HSD test (p<0.05).
Results: Highest mean SBS was observed in subgroup-1 whereas lowest mean SBS was seen in subgroup-2. There was statistical increase in mean SBS values in subgroup-3. The mean SBS values of Group II were statistically higher than those in Group I (p<0.05). The mode of failure was mainly adhesive.
Conclusion: The SBS of universal adhesives to dentin is decreased by salivary contamination. Water rinsing and reapplication of the bonding agent improves the bond strength significantly.
Adhesion, Dentin, Saliva
Anuja Sanjay Kulkarni, Sharad Kokate, Vibha Hegde, Ushaina Fanibunda. THE EFFECT OF SALIVA CONTAMINATION ON SHEAR BOND STRENGTH OF TWO UNIVERSAL BONDING AGENTS-AN IN VITRO STUDY. Journal of Clinical and Diagnostic Research [serial online] 2018 April [cited: 2019 Aug 25 ]; 12:ZC06-ZC10. Available from
Date of Submission: Dec 16, 2017
Date of Peer Review: Jan 13, 2018
Date of Acceptance: Mar 16, 2018
Date of Publishing: Apr 01, 2018
FINANCIAL OR OTHER COMPETING INTERESTS: None.
- Emerging Sources Citation Index (Web of Science, thomsonreuters)
- Index Copernicus ICV 2017: 134.54
- Academic Search Complete Database
- Directory of Open Access Journals (DOAJ)
- Google Scholar
- HINARI Access to Research in Health Programme
- Indian Science Abstracts (ISA)
- Journal seek Database
- Popline (reproductive health literature)