The purpose of treating furcal perforation is to seal the artificial communication between canal space and periradicular tissue prevent periodontal breakdown. duration, size location were identified as primary prognostic factors for determining successful treatment. Mineral trioxide aggregate (MTA) has been regarded an ideal material repair owing its excellent sealability biocompatibility. pres...

Root perforation represents an undesirable complication that may lead to an unfavorable prognosis. The aims of this study were to characterize and to compare the presence of calcium oxide (CaO) on the chemical composition of materials used for root perforation therapy: gray and white mineral trioxide aggregate (MTA) and Portland cement (PC), gray MTA+5%CaO and gray MTA+10%CaO. The last two mate...

INTRODUCTION Root canal therapy (RCT)_like other dental practices_ can be accompanied with some accidents or unpredictable conditions that are called "procedural accidents". Having the knowledge about these accidents and their etiology is essential to have RCT completion and to prevent the repeat of these accidents. This study was designed to evaluate accidents occurring during RCT in patients ...

introduction: to describe the underlay tympanoplasty technique using an acellular dermal graft(alloderm) for tympanic membrane (tm) reconstruction in a guinea pig model and to demonstrate the feasibility of the technique using alloderm tissue harvested from the prepuce as a source of tissue for future grafting in human tm reconstruction.   materials and methods: the prepuce was divided during c...

Objectives: To evaluate the accuracy between two different electronic apex locators in detecting root canal perforation middle and apical portion during retreatment. Methods: Sixty freshly extracted mandibular premolars were taken to this study, which divided into three groups of twenty each. Group I: Control Group, II: Positive control without perforation, III: Negative with perforation. In al...

Introduction. Root perforations may occur following endodontic treatment, thus compromising the root integrity and treatment outcome. Case Report. A patient presented with a canal perforation an earlier of upper left lateral incisor (tooth 22). Once diagnosis symptomatic periapical periodontitis was established, decision made to retreat using mineral trioxide aggregate perform apicoectomy. The ...