Comparative evaluation of shear bond strength of different bonding system with effect of saliva contamination and decontamination. - An in vitro study
Journal Title: IP Indian Journal of Conservative and Endodontics - Year 2018, Vol 3, Issue 2
Abstract
Introduction This study aims for the bond strength measurement of two new self etch bonding agent and effect of salivary contamination and decontamination on the bonding agent strengthMaterials and MethodsPremolar teeth 60 removed during orthodontic treatment were collected and the buccal surfaces of the tooth were made to a plane dentinal surface The randomly divided samples were distributed into three subgroups for OptibondAll in one kerr BSA and three subgroup for Single Bond Universal 3M BSB of 10 each For optibond all in one BSA BSAI Is the control group selfetch bonding agent applied to flat dentine BSAII Is the contamination group selfetch bonding agent applied followed by saliva application and then dried with air BSAIII Is the decontamination group application of selfetch bonding agent followed by contamination of saliva dried with air and then reapplication of selfetch bonding agent For Single Bond Universal 3MBSB BSBI The control group selfetch bonding agent applied to flat dentine BSBII The contamination group selfetch bonding agent applied followed by saliva application and then dried with air BSBIII The decontamination group application of selfetch bonding agent followed by contamination of saliva dried with air and then reapplication of selfetch bonding agentFollowed by the bonding procedure a 5mm composite block with bulkfill ivoclar vivadent was built on the flat dentine surface Instron universal testing machine USA with a 1 mm per minute cross head speed was used to test the bonding strength Data Obtained were subjected to statistical analysis by one way ANOVA test and tukeys multipe comparison and unpaired ttest for the inter group comparisonResultIn the Kerr group BSA the shear bond strength of the contamination subgroup BSAII decreased to 557 177 MPa as opposed to 1387 212 MPa of control group BSAI and 1485 225 MPa of BSAIII group which was significant statistically The bond strength of BSAI control group and BSAIII decontamination group showed no significant differenceIn 3M Universal group BSB bond strength significantly decreased in BSBII contamination group 372 129 MPa when compared to BSBI control group 562 053 MPa and BSBIII decontamination group 986 109 MPa which was significant statistically The bond strength of BSBIII wherein 3M universal bond was reapplied after contamination of saliva was found to be significant statistically than BSBI and BSBIIConclusionBoth the self etch system Optibond All in one kerr and Single Bond Universal 3M showed reduction in dentine bond strength when Contamination by saliva was done during restorative procedure Reapplication of the bonding agent for the kerr Optibond All in one and 3M Single Bond Universal can recover the bond strength after air drying off the saliva over the dentine surface In 3M Single Bond Universal group added application of bonding agent improved bond strength significantly after saliva decontaminationKeywords Shear bond strength Selfetch bonding agent system Salivary contamination Salivary decontamination
Authors and Affiliations
Ruchir Kumar Agarwal
Keywords
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- EP ID EP520227
- DOI 10.18231/2456-8953.2018.0012
- Views 59
- Downloads 0
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