Sand grains are ubiquitous in the Earth’s system, and found different environmental settings globally, but sand itself as a physical object has multiple conflicting meanings with respect to both its agglomeration into landforms such dunes beaches, how dynamics have cultural significance meaning. This study takes transdisciplinary approach towards examining of sand, focusing on spatiotemporal ph...

introduction: one of the main goals of endodontic treatment is to decrease the harboring bacteria within the root canal system and dentinal tubules. this experimental study attempted to investigate the antibacterial efficacy of three root canal irrigants in the presence and absence of smear layer (sl). methods and materials: a total of 210 sound extracted human single-rooted teeth were prepared...

results the overall prevalence of right, left, bilateral and total absence of the palmaris longus were 4.1%, 5.2%, 3.9% and 13.2%, respectively. there was no significant difference in its absence with regard to the body side or gender (p > 0.05). background the palmaris longus is a degenerating weak flexor muscle in the anterior of the forearm. many techniques for clinically determining the pre...

Background & Aims: The Plantaris muscle is located in the superficial posterior compartment of the leg and is absent in some individuals. The present study was undertaken to evaluate the absence variation of Plantaris muscle and its possible relation with Palmaris longus and fifth superficial flexor digitorum of the hand. Methods: 83 fresh cadavers, referred to legal medicine center, Kerman, Ir...

background and aims. with availability of hydrophilic sealers, drying of the canals before endodontic obturation is still a matter of debate. the aim of this study was to compare the apical micro-leakage of ah26, excite dsc, mta fillapex, and zoe sealers in dry and moist root canals. materials and methods. this experimental study was performed on 90 extracted maxillary central incisors. rotary ...

Today, the use of natural polymers and their replacement with synthetic polymers in various fields of science has attracted much attention. Reducing the associated risks, easy access, and being cost-effective are among the advantages of using natural polymers compared to the synthetic polymers. In this research, the destruction of amylopectin in the presence and absence of titanium dioxide nano...

Background & Aims: Sonography has enjoyed much attention as a noninvasive diagnostic tool for carpal tunnel syndrome in recent years. The aim of the present study was to assess the effect of anatomic variations of existence or absence of palmaris longus and fifth superficial flexor tendons on the sonographic measurement of median nerve surface area in healthy individuals’ wris...