%0 Journal Article
%T Analysis of two different endodontic desobturation techniques through clearing teeth technique
%A M¨˘rio Luiz Pinto de Queir¨®z
%A Elias Pandonor Motcy de Oliveira
%A Tiago Andr¨¦ Fontoura de Melo
%A ¨¦rica Pozo Mautone
%J RSBO
%D 2012
%I University of Joinville
%X Introduction and objective: This study aimed to analyze in vitro the efficacy of two endodontic techniques employed for the removal of the filling material inside root canals. Material and methods: Twenty single-rooted lower bicuspids were selected, prepared by crown-down technique and filled with gutta-percha and Endofill  sealer, through lateral condensation technique. The provisional restoration was executed with Cimpat  and the teeth remained 15 days at 37ˇăC and 100% humidity. Next, the teeth were divided into two groups according to the technique of desobturation and re-instrumentation. In group A, it was used ProTaper Universal  instrument sizes D1, D2 and D3 for desobturation procedure associated with the same system instrument sizes F4 and F5 for re-instrumentation. In group B, it was employed K type hand files for desobturation and re-instrumentation. After clearing teeth technique, the teeth examination was performed by two examiners previously trained and calibrated. Results and conclusion: Data were subjected to FisherˇŻs exact test, with significance level of 5%, which showed no statistical difference between the two techniques.
%K Endodontics
%K retreatment
%K dental instruments.
%U http://vdisk.univille.edu.br/community/depto_odontologia/get/ODONTOLOGIA/RSBO/RSBO_v9_n1_janeiro-marco2012/v9n1a06.pdf