Objective: To assess the reliability of fi ve intra oral periapical radiography (IOPAR) radiographic signs, and to compare the reliability of IOPAR with that of cone-beam computerized tomography (CBCT) for determining the proximity of impacted mandibular third molar and mandibular canal. Methods: The present study consisted of 50 subjects, in age group of 18-30 years with impacted mandibular th...

AIMS (i) To carry out meta-analyses to quantify the influence of the clinical factors on the efficacy of primary root canal treatment and (ii) to identify the best treatment protocol based on the current evidence. METHODOLOGY The evidence for the effect of each clinical factor on the success rate (SR) of primary root canal treatment was gathered in three different ways: (i) intuitive synthesi...

The application of mineral trioxide aggregates (MTA) cement during the root canal obturation is gaining concern due to its bioactive characteristic to form an apatite in dentinal tubules. In this regard, this study was to assess the biomineralization of dentinal tubules following root canal obturation by using pozzolan-based (Pz-) MTA sealer cement (EndoSeal MTA, Maruchi). Sixty curved roots (m...

Aims: Circumcision is a minor urologic surgery that is widely used in Iran and other Muslim and non-muslin countries. A common complication following this procedure is bleeding. The aim of this study was to compare compressive dressing with no dressing and conventional dressing options for circumcision in point of bleeding after circumcision. Materials & Methods: Between October 2010 and July ...

Gauze swabs soaked in normal saline are frequently used as dressing on open wounds. Their exact mechanism of action is not known. This study was designed to assess the hypothesis that normal saline dressings act in part as an osmotic dressing. Ten patients had skin ulcers (n = 10) dressed with normal saline soaked sponges. Acting as controls (n = 10) identical sponges were placed upon intact sk...

PURPOSE To compare different radiographic methods for assessing endodontically treated teeth. MATERIALS AND METHODS Root canal treatments were applied in 120 extracted mandibular teeth, which were divided into four groups: (1) ideal root canal treatment (60 teeth), (2) insufficient lateral condensation (20 teeth), (3) root canals filled short of the apex (20 teeth), (4) overfilled root canal ...

At the beginning of my study of Diplococcus intracellularis I had the plan of using monkeys to reproduce the symptoms and lesions of cerebro-spinal meningitis in man. My study of the intra-peritoneal injections of guinea-pigs encouraged me to believe that the injection of suitable cultures of the intraceUularis into the spinal canal of monkeys would lead to the production of an acute inflammati...