Effect of ultrasonic activation on four different sealers for intra-tubular penetration to root dentin

The purpose of this study was to assess how endodontic sealers' ultrasonic activation (UA) affected dentin tubule penetration. The sample size came out to be 48 <i>i.e.</i> 12 samples in each group (four groups based on four sealers) which were further subdivided into 3 subgroups (4 samples in each subgroup). It was found that ultrasonic activation greatly enhances sealer penetration. Further research is warranted to compare the effect of ultrasonic activation (UA) of four different sealers on dentin tubule penetration.