This assignment applies to all translations of the Work as well as to preliminary display/posting of the abstract of the accepted article in electronic form before publication. If any changes in authorship (order, deletions, or additions) occur after the manuscript is submitted, agreement by all authors for such changes must be on file with the Publisher. An author's name may be removed only at his/her written request. (Note: Material prepared by employees of the US government in the course of their official duties cannot be copyrighted.

This assignment applies to all translations of the Work as well as to preliminary display/posting of the abstract of the accepted article in electronic form before publication. If any changes in authorship (order, deletions, or additions) occur after the manuscript is submitted, agreement by all authors for such changes must be on file with the Publisher. An author's name may be removed only at his/her written request. (Note: Material prepared by employees of the US government in the course of their official duties cannot be copyrighted.

No abstract

These results suggest that Er:YAG laser is useful for class I cavity preparation from the viewpoint of microleakage.

A case report of a mandibular central incisor with two root canals and two separate apical foramina is presented. The tooth showed inadequate endodontic treatment and a periapical radiolucent lesion. The lesion healed following endodontic retreatment and proper obturation of both root canals.