BACKGROUND The purpose of this study was to compare the efficacy of nickel-titanium rotary systems with or without the retreatment instruments in the removal of gutta-percha from the apical third. METHODS The systems compared were as follows: ProTaper Universal (PT), ProTaper Universal Retreatment (PTr), Mtwo (M2) and Mtwo Retreatment (M2r). Sixty extracted mandibular incisors were treated wi...

Trauma to young permanent teeth is common and subsequently such incidents leads to pulpal inflammation or necrosis. If trauma occurs before the completion of root formation, the process of root end closure is halted. Retreatment of such teeth is challenging as the apical diameter is often larger than the coronal diameter. Also, open apex and lack of apical stop makes obturation of the canal dif...

BACKGROUND: The complete removal of root filling material is one the main goals non-surgical endodontic retreatment. Thus, development new techniques and instruments aiming to promote this task presents clinical significance. AIM: purpose study was assess amount residual canal materials (gutta-percha/sealer) after using two different retreatment systems ultrasonic tip. METHODS: Forty-five mandi...

Aim: To evaluate the outcome of single visit nonsurgical retreatment by clinical examination and PAI (Periapical Index) and, patients’ feedback regarding after 1 year.
 Material Method: 115 patients who previously had were recalled year dropouts, 84 examined clinically radiographical examinations completed pre-and postoperatively using Periapical Index. Patients also asked if they would st...

BACKGROUND Reciproc instruments are the only contemporary root canal instruments where glide path preparation is no longer strictly demanded by the manufacturer. As the complete preparation of root canals is associated with success in endodontic treatment we wanted to assess the ability and find predictors for Reciproc instruments to reach full working length (RFWL) in root canals of maxillary ...

Introduction The decision of which modality secondary endodontic treatment to perform is multifactorial and clinician dependent. literature surrounding the long-term survival nonsurgical retreatment compared with surgical remains equivocal warrants further investigation. This 7-year retrospective study seeks compare outcome retreatments that root-end surgeries performed on teeth without prior r...

Core carrier techniques are unique among the various root canal filling techniques for delivering and compacting gutta-percha in the prepared root canal system. Thermafil (TF), considered the major core carrier device, is provided as an obturator consisting of a master core coated with thermoplasticized gutta-percha. We have devised a thermoplasticized gutta-percha filling technique using a pol...

During the past decade, endodontics has seen a dramatic shift in the application of periradicular surgery and the role it plays in endodontic treatment. With the introduction of enhanced magnification, periradicular ultrasonics and other associative technologies, teeth that might otherwise be extracted now have a chance for retention. This article describes the role of these advances in contemp...

Mineral trioxide aggregate (MTA) has emerged as a reliable bioactive material with extended applications in endodontics that include the obturation of the root canal space. This article examines the literature supporting MTA as a canal filling material, suggests methods for its delivery and placement, and presents clinical cases that demonstrate its effectiveness in resolving apical periodontit...