Background: This study was conducted to evaluate and compare in vitro, the bond strength of a universal adhesive on differently prepared carious human dentin using a Universal testing machine. Material and methods: Freshly extracted human molar teeth from the Department of Oral and Maxillofacial Surgery, GDC, Srinagar, were used as the study sample. The total number of extracted teeth used for the study were Forty Eight. Results: As per table no.1, mean value tensile bond strength of group 2(carbide bur group) showed highest micro followed by group 4(Brix 3000 group), group 3 (smart bur bur) and least mean value recorded for group 1 (Diamond bur group). Conclusion: micro tensile bond strength, self-etch adhesive, caries, diamond abrasives, carbide burs, caries removal. Keywords: Tensile Bond, Strength