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Year : 2012  |  Volume : 1  |  Issue : 1  |  Page : 13-17

In Vitro Evaluation of Shear Bond Strength of Self Etching Primers to Dentin

Reader, Dept. of Conservative Dentistry & Endodontics,Sinhgad Dental College & Hospital, Pune - 411 041, India

Correspondence Address:
Reena Vora
Reader, Dept. of Conservative Dentistry & Endodontics,Sinhgad Dental College & Hospital, Pune - 411 041
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2277-4696.159109

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Objectives: To evaluate and compare the shear bond strength of four self etching primer adhesives to dentin. Materials & Methods: A total of 75 extracted human maxillary and mandibular molars were selected for the study. The teeth were divided into 5 groups of 15 teeth each, Group A- AdheSE (Ivoclar Vivadent), Group B-Adper prompt (3M ESPE), Group C- i bond (Heraeus-Kulzer), Group D-XenoIII (Dentsply, De Trey) Group E-Single bond (3M ESPE) was used and served as control. All the adhesives were applied according to the manufacturer's instructions. Composite post was built on these bonded surfaces using Z-100 hybrid composite. The teeth were subjected to thermocycling for 500 cycles between 5°C to 55°C. The teeth were then mounted on universal testing machine and fractured under a shearing load, applied at a speed of 0.2mm/min. The readings were noted, tabulated and shear bond strength calculated in Mega Pascal (Mpa) units. Results: There was significant difference in the mean shear bond strength of the four self etching primers, adhesives tested. Shear strength values were in the range of 16.57 to 21.73 Mpa. Xeno III gave the highest mean of shear bond strength whereas Adhe SE showed the lowest value of shear strength. Conclusion: Based on the results of the study, it can be concluded that contemporary self etching primer adhesives bond successfully to dentin. Moreover the bonding ability of Self Etching Systems seems to be comparable to the conventional Total Etch Systems.

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