%0 Journal Article
%T Retratamento de obtura  es com o sistema Thermafill por meio do sistema ProFile .04 em 350 ou 2.000 rpm
%A Flares BARATTO FILHO
%A Jos¨¦ Roberto VANNI
%A Orlando LIMONGI
%A Denise Piotto LEONARDI
%J RSBO
%D 2006
%I University of Joinville
%X This study aimed at determining the quality of removal of the thermafill system in endodontic retreatment with utilization of the 0.04 ProFile system at two different speeds. Thirty single-rooted mandibular canines were divided into two groups. The canals were prepared with the crown-down technique and obturated with the thermafill system with a carrier #40 and Ah-plus sealer.Fillings were removed two weeks after obturation, as follows: Group I ¨C0.04 ProFile following the size sequence 90, 60, 45, 40 and 45, without solvent, at a speed of 350rpm; Group II ¨C same technique at 2000rpm. The specimens were longitudinally sectioned and were scanned and analyzed by a software(ImageTool) that measured the area of remaining filling material and removal of the plastic carrier. The mean of remnants of filling material was 24.86% at Group I, 24.91% at Group II and the area was not statistically different(Student¡¯s ¡°t¡± test) between the two groups and all plastic carriers were removed. It was concluded that the quality of removal of the filling material at both speeds (350 or 2000rpm) was similar; and all plastic carriers were removed with success by ProFile .04 system.
%K root canal retreatment
%K gutta-percha
%K Thermafill system.
%U http://univille.edu.br/community/depto_odontologia/VirtualDisk.html?action=downloadFile&file=retratamento_obturacoes.pdf&current=%2FODONTOLOGIA%2FRSBO%2FRSBO_v.3_n.2_novembro_2006