Publications by authors named "Nicole de Mello Rahde"
The present study evaluated the effectiveness of two reciprocating systems for the removal of root-filling material during endodontic retreatment. One hundred extracted mandibular premolars were prepared and root-filled with gutta-percha and sealer. Root fillings were removed with K-files according to the following techniques: Group A--hand instrumentation; Group B--Endo-Gripper system driven by compressed air; Group C--INTRAmatic 29CH + INTRA-LUX 3LD driven by compressed air; Group D--Endo-Gripper system driven by electric engine; Group E--INTRAmatic 29CH + INTRA-LUX 3LD driven by electric engine.
View Article and Find Full Text PDFArticle Synopsis
- The study compared the effectiveness of two systems (Endo-Gripper and Profile .04) in removing root-filling material from curved root canals in vitro.
- Eighty canals from mandibular molars were filled and then examined using CT imaging after 6 months, with both systems showing incomplete removal of filling material.
- Results indicated no significant difference in the effectiveness of the two systems, but there was significantly more debris left in mesiobuccal canals compared to mesiolingual canals, highlighting limitations in current mechanical systems for retreatment.
Purpose: The aim of this study was to evaluate, in vitro, the quality of calcium hydroxide [Ca(OH)(2)] paste filling (Ultracal, Ultradent) associated or not with Ca(OH)(2)-containing gutta-percha points (Calcium Hydroxide Plus Points, Roeko) in curved root canals.
Material And Methods: One hundred and twenty roots of extracted human teeth, randomly divided into three curvature ranges (mild - 0 to 14 degrees; moderate - 15 degrees to 29 degrees; severe - >30 degrees) were used. After chemomechanical preparation, the roots were assigned to 4 groups (n=30), according to the technique of intracanal dressing placement: group 1 - Ca(OH)(2) paste was applied with a lentulo spiral; group 2 - Ca(OH)(2) paste was applied with a lentulo spiral and a Ca(OH)(2) point was inserted into the canal; group 3 - Ca(OH)(2) paste was applied with a Navitip tip (supplied with Ultracal system); group 4 - Ca(OH)(2) paste was applied with a Navitip tip and a Ca(OH)(2) point was inserted into the canal.