The introduction of nickel-titanium (NiTi) as material for endodontic instruments about 15 years ago opened many new perspectives. Many dentists and scientists see a benefit in using NiFi files. Initial problems such as frequent fractures and the uncertainty of the best way to use them have been solved. Other challenges such as enhancing the cutting ability or optimizing the speed, torque, and ...

BACKGROUND Analyze the most important prognostic factors when performing periapical surgery and compare the success rates of distinct authors. INTRODUCTION Periapical surgery is an approach to treat non-healing periapical lesions and it should be viewed as an extension of endodontic treatment and not as a separate entity. MATERIAL AND METHODS A search of articles published in Cochrane, PubM...

BACKGROUND Finite element simulation has been used in last years for analysing the biomechanical performance of post-core restorations in endodontics, but results of these simulations have been interpreted in most of the works using von Mises stress criterion. However, the validity of this failure criterion for brittle materials, which are present in these restorations, is questionable. The obj...

Department of Operative Dentistry, University of North of Paraná Avenida Paris, 675, Jardim Piza 86041-100 Londrina, PR Brazil Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, MI, USA Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo – USP, Bauru SP, Brazil Department...

INTRODUCTION Perforation repair is a fairly common endodontic procedure, but most of the recall data in the endodontic literature are short-term (ie, 1-2 years). The purpose of this article was to present 4 clinical cases of perforation repair with medium- to long-term recalls. METHODS Four cases were selected with different clinical scenarios. Three nonsurgical cases were retreated, repaired...

OBJECTIVES To investigate the prevalence of different primary reasons for endodontic referrals and the clinical symptoms of the referred cases. MATERIALS AND METHODS Clinical data of total endodontic treatment cases (1,014 teeth) including endodontic referral cases (224 teeth) between January 1, 2010 and December 31, 2012, at Kangdong Sacred Heart Hospital, were investigated retrospectively. ...

The 4- to 6-year outcome of orthograde retreatment was assessed for Phases I and II of the Toronto Study. In total, 523 teeth in 444 patients were retreated. With 395 teeth lost to follow-up and 25 extracted, 103 teeth (34% recall) were examined by two independent, blinded, calibrated examiners for outcome: "healed" (absence of apical periodontitis, signs, or symptoms) or "diseased" (presence o...

The current clinical practice of endodontics includes the utilization of a variety of new technological advances and materials. The last comprehensive survey that compared treatment modalities used in endodontic practices was conducted in 1990. The purpose of the current survey was to determine the frequency with which these new endodontic technologies and materials are being used in endodontic...

Outcome 4-6 years after retreatment was assessed for Phases 3 and 4 of the Toronto Study. Of 477 teeth retreated, 333 were lost to follow-up, 18 were extracted, and 126 (41% recall, excluding 124 discontinuers) were examined for outcome of healed (periapical index score, < or = 2; no signs or symptoms) or diseased. When pooled with Phases 1 and 2, 187 of 229 teeth (82%) were healed. Logistic re...