RESUMO
<p><b>OBJECTIVE</b>To compare the shear bond strength of the fractured anterior teeth reattached by two different adhesive materials.</p><p><b>METHODS</b>Forty crown fractured anterior modes were divided into two groups randomly, with 20 in each group. Group A were reattached by Clearfil SE Bond and Clearfil AP-X, while group B were reattached by Clearfil S3 Bond and Clearfil AP-X. Then the specimens were submitted to an axial compression test in a universal testing machine until tooth fractured. The strength was recorded.</p><p><b>RESULTS</b>The mean shear bond strength of group A and group B was (324.32 +/- 65.91) N and (263.08 +/- 55.88) N, separately. The mean shear bond strength of group A was statistically higher than group B(t = 3.17, P = 0.000).</p><p><b>CONCLUSION</b>The shear bond strength of two-step adhesive Clearfil SE Bond is higher than one-step adhesive Clearfil S3 Bond for the reattachment of fractured anterior teeth.</p>
