A Digital Microscopic Inspection of Dentinal Defects after Using Endodontic Retreatment Files

Incidence of Dentinal Defects and Vertical Root Fractures after Endodontic Retreatment and Mechanical Cycling

Introduction The aim of this study was to evaluate the incidence of dentinal defects and vertical root fractures (VRFs) after endodontic retreatment and mechanical cycling (MC). Methods and Materials Two hundred mandibular premolars were selected. Forty teeth were left unprepared (control group). The remaining 160 root canals were prepared with ProTaper instruments and filled by using two dif...

Effect of different nickel-titanium rotary files on dentinal crack formation during retreatment procedure

Background. The aim of this study was to compare the dentinal defects caused by Reciproc, TF Adaptive and ProTaper Next NiTi rotary file systems during the retreatment procedure. Methods. A total of 150 mandibular incisors with straight and single root canals were included in the present study. All the root canals were prepared up to an apical diameter 0.40 mm using stainless steel files. Thirt...

Retreatment endodontic pdf

Surgical endodontic retreatment.

In teeth with periapical lesions and defective root canal seals non-surgical retreatment is usually preferred. Sometimes, however, such treatment may not be feasible and periapical surgery must be performed. The present study investigated a technique of retrograde root canal treatment as an alternative to the more conventional types of surgical procedure. The material consisted of 35 teeth whos...

Non-Surgical Endodontic Retreatment after Unsuccessful Apicectomy: A Case Report

Introduction: Endodontic failure may arise mainly from persistent intra-radicular infection from remaining bacteria in the root canal. As a result, retreatment is the most appropriate way of dealing with failed cases. However, many clinicians choose to perform periapical surgery, on the grounds that it is simpler and has immediate results. The resected teeth with insufficient root canal treatme...