RERMOVING SMEAR LAYER DURING ENDODONTIC TREATMENT BY DIFFERENT TECHNIQUES - A INVITRO STUDY . A CLINICAL CASE - ENDODONTIC TREATMENT WITH ER : YAG LASER
a . b .
Figure 4 . a . Radiograph and b . Photograph demonstrated maxillary lateral incisor tooth no # 12 with radiolucency and sinus-tract at the apical area
a . b .
Figure 5 . a . LAI with Er : YAG laser . Radiation was set to 0.5 W , 50 mJ , 10 HZ for 60 seconds . b . Rubber-dam on tooth no # 12 with laser safir tip
The final obturation was accomplished at the same appointment . Approximately 2 years later , the radiograph demonstrates that radiolucency
ceased and the periapical tissues heal normally . ( Fig 6 ) and there is no evidence of the sinus-tract .
a . b .
Figure 4 . Radiograph tooth no # 12 a . Before endodontic treatment , with radiolucency and sinus-tract at the apical area b . 2 years folow up , after LAI with Er : YAG laser
6 . Conclusion Smear-layer removal was most effective when the root canals were irrigated using Er : YAG laser at low energy with 17 % EDTA solution .
Acknowledgments The authors declare no conflict of interest related to this study . There are no conflicts of interest and no financial interests to be disclosed .
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