50 INTERNATIONAL DENTISTRY – AUSTRALASIAN EDITION VOL. 7, NO. 1 Abstract Objectives: This study aimed to compare the efficacy of Tetraclean and 17% EDTA as final irrigants in the removal of the smear layer in the coronal, middle and apical thirds of the instrumented root canal. Methods and Materials: Forty extracted human permanent teeth (n=10) were randomly assigned to 4 groups: no smear layer...

This study aimed to evaluate the influence of irrigation needle gauge and design, and the final root canal diameter on the apical cleaning efficacy. Twelve human mandibular incisors were used. At different stages of root canal widening (sizes 20, 30 and 40 K-files), root canals were filled with radiopaque contrast medium. Four different needles were evaluated: 23G with side opening, 22G with ap...

Due to limitations in standard endodontic therapy there have been great endeavors to effectively clean, shape and disinfect the root canal system while preserving the natural anatomy of the tooth [1]. Maintaining the natural canal anatomy and preservation of tooth structure has been correlated to higher clinical success rates [2-5]. A major issue in tooth preservation is the need to maximize cl...

Aims Since the inception of the cleaning and shaping concept, the use of instruments and chemicals has remained as the central paradigm of the root canal therapy. However, cleaning and shaping the root canal space adequately is a well-known difficult task, particularly in root canal systems with intercanal connections, isthmuses, and fins. Recently, micro-computed tomography (micro-CT) technolo...

Two useful numerical values, called the Torg ratio and the spinal canal diameter (SC diameter) are widely accepted as reliable morphometric determinants of spinal stenosis. The aims of the study were to examine morphometric determinants of the cervical spinal canal on MRI in both sexes and analyse them as reliable indicators of spinal stenosis. Measurements were made on 50 MR images (sagittal T...

Treatment of cervical stenosis involves opening or widening the cervical canal. The condition may improve on its own following the vaginal delivery of a baby. Cervical canal widening can be temporarily achieved by the insertion of dilators into the cervix. If the stenosis is caused by scar tissue, a laser treatment can be used to vaporize the scarring. Finally, the surgical enlargement of the c...

Treatment of cervical stenosis involves opening or widening the cervical canal. The condition may improve on its own following the vaginal delivery of a baby. Cervical canal widening can be temporarily achieved by the insertion of dilators into the cervix. If the stenosis is caused by scar tissue, a laser treatment can be used to vaporize the scarring. Finally, the surgical enlargement of the c...

INTRODUCTION Pulpectomy of primary teeth is commonly carried out with hand files and broaches; a tricky and time consuming procedure. The purpose of this in vitro study was to compare the cleaning efficacy and time taken for instrumentation of deciduous molars using hand K-files and Flex Master rotary system. MATERIALS AND METHODS In this study, 68 canals of 23 extracted primary molars with a...

The main objectives of root canal treatment are thorough shaping and cleaning of all pulp spaces and its complete obturation with an inert filling material. The presence of untreated canal may be a reason for failure of endodontic therapy. To achieve satisfactory root canal therapy, a proper and in-depth knowledge of complex and abnormal root canal morphology is essential.

Background and Aim: Pulpectomy of primary teeth is commonly performed with hand files and instruments. However, it is a time consuming procedure. Compared to hand files, rotary instrumentation has more advantages. The purpose of this in vitro study was to compare the cleaning efficacy and time taken for instrumentation of deciduous mo-lars using Reciproc and Mtwo rotary systems. Materials an...