INTRODUCTION The aim of this study was to evaluate the accuracy of two electronic apex locators (Smarpex and NovApex) in detecting apical perforation. MATERIALS AND METHODS After access cavity preparations, the working length was determined by the first examiner before and after perforation with a stereomicroscope by introducing a K-file size 10 into the canal and size 25 K-file up to the per...

Cardiac chamber perforation is an uncommon, but potentially dangerous, complication of implantation of a pacemaker (PM) or a cardioverter-defibrillator (ICD). Different clinical presentations are related to the time between implantation and perforation, localisation of the perforation and concomitant lesions in neighbouring organs. Diagnosis is based on concomitant analysis of the clinical p...

Taurodontism is a morpho-anatomical developmental anomaly, which is seen infrequently in teeth only. It is characterized by a deficiency in the constriction at the cement-enamel junction, with lengthened pulp chamber and apical displacement of the pulpal floor. This report presents a case of bilateral taurodontism which were pulpally involved. Endodontic treatment was done for both the teeth an...

Taurodontism represents morphological abnormality of the teeth followed by the enlargement of the elongation of the pulp chamber in vertical direction; and which is connected with: racial traits, some syndromes, or in most cases appears as the consequence of the increased number of X chromosomes. In the study is presented rare case of hypertaurodont maxillary second premolar and surgical admiss...

Purpose: To report a case of double descemet membrane forming a double anterior chamber following ‘Big bubble’ DALK converted to PKP. Results: A 52-year-old man with keratoconus underwent DALK operation converted to PKP due to macro perforation of the descemet membrane. On the postoperative evaluation a remnant of the host’s descemet membrane formed a double anterior chamber. After a few months...

this study evaluated the use of the solar dryer at esfahan agricultural research center for drying prunes. a factorial experiment was carried using a randomized complete block design with four replications. the four methods used to accelerate prune drying were: control group (no treatment), mechanical perforation at one week of drying, blanching, submersion in australian cold dip method. the dr...

The paper describes the anatomical variation of four roots in a mandibular permanent first molar diagnosed using multiple angulated preoperative radiographs and its successful nonsurgical endodontic management. Careful observation and exploration of the pulpal floor using a dental operating microscope revealed a peculiar developmental root fusion line on the pulp chamber floor. Based on the abo...

A major anatomical variant of the two-rooted mandibular first molar is a tooth with an additional distolingual third root: The radix entomolaris (RE). It is essential to anticipate and find all roots and canals during root canal treatment. Proper angulations and interpretation of radiographs help to identify pulp chamber and root anatomy. If present, an awareness and understanding of this unusu...

AIM To evaluate the effect of dentine conditioning on migration, adhesion and differentiation of dental pulp stem cells. METHODOLOGY Dentine discs prepared from extracted human molars were pre-treated with EDTA (10%), NaOCl (5.25%) or H2 O. Migration of dental pulp stem cells towards pre-treated dentine after 24 and 48 h was assessed in a modified Boyden chamber assay. Cell adhesion was evalu...

This study aimed to investigate pulp chamber and surface temperature development using different LED light curing units (LCUs). Eight brands of LED-LCUs were tested in a laboratory bench model. The recorded with type T thermocouple infrared cameras, respectively. highest increase was 6.1±0.3°C 20.1±1.7°C, Wide-spectrum produced higher at 0 mm 2 but lower 4 mm. Narrow-spectrum increase. LED-LCU ...