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The efficacy of laser, ultrasound and self‐adjustable file in removing smear layer debris from oval root canals following retreatment: A scanning electron microscopy study
Author(s) -
Keles Ali,
Kamalak Aliye,
Keskin Cangül,
Akçay Merve,
Uzun İsmail
Publication year - 2016
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/aej.12145
Subject(s) - smear layer , root canal , debris , dentistry , materials science , irrigation , layer (electronics) , scanning electron microscope , medicine , biomedical engineering , nuclear medicine , composite material , geology , biology , ecology , oceanography
This study aims to compare the efficacy of different irrigation activation methods to remove smear layer and debris from oval‐shaped root canals following retreatment. Ninety mandibular canines with oval‐shaped root canals were selected. Retreatment was performed with R‐Endo retreatment files. The samples were randomly divided into six groups ( n = 15). Groups were assigned according to agitation technique: R‐Endo with classic irrigation, with self‐adjustable file, with passive ultrasonic irrigation, R‐E ndo + E r: YAG , R‐E ndo + PIPS and R‐E ndo + N d: YAG . Compared with the classic irrigation ( R‐E ndo + CI ) group, all other groups were more successful in reducing smear layer and debris ( P < 0.05). The least amount of residual smear layer and debris was detected in the E r: YAG laser group ( P < 0.05). Additional use of different agitation methods contributes to removal of debris and smear layer following root canal filling removal with rotary instruments; however, none of the techniques tested render root canal walls completely free of smear layer or debris.