[Table/Fig-1]:

Experimental groups included in the study.

Groups	Sample size (Teeth)	Dentin Bonding Agent	Generation	Application
A	30	AdperTM Single Bond 2 (3M ESPE)	5th	Etchant was applied with a syringe, after waiting for 15 seconds it was rinsed with water and cavity was blot dried with filter paper. Single coat of Adper Single Bond (fifth generation) bonding agent was applied with applicator tip. Gently air was blown followed by second coat of bond. Light curing was done for 40 seconds. Application of Tetric N Ceram composite with composite handling instrument in horizontal increments of 2 mm each. Each increment was light cured for 40 seconds.
B	30	AdperTM SE Plus (3M ESPE)	6th	Self Etch Primer was applied with a microbrush for 15 seconds followed by gentle air dispersion. And then light cured for 20 seconds. Adhesive Adper SE Plus (sixth generation) was applied with a microbrush followed by gentle air dispersion. And then light cured for 20 seconds. Tetric N Ceram composite was applied using same technique.
C	30	AdperTM Easy One (3M ESPE)	7th	Adhesive (seventh generation) was applied with a microbrush followed by gentle air dispersion. And then light cured for 20 seconds. Tetric N Ceram composite was applied using same technique.
D	30	AdperTM Single Bond Universal (3M ESPE)	8th	Adhesive (eighth generation) was applied with a microbrush followed by gentle air dispersion. And then light cured for 20 seconds. Tetric N Ceram composite was applied using same technique.