introdouction: the mapping of ghost images of the maxilla and the nasal cavity, which are complex structures, is very important. the position of objects that create a ghost image can differ when using various devices. the purpose of this investigation was to study the mapping of ghost images of the maxilla and the nasal cavity using a cranex d digital panoramic machine. materials and methods: t...

a 79 year old fanner referred to a dental clinic because of toothache for one week. after extraction of a painful tooth, three larvae, 1.5 cm in length emerged from the dental cavity. morphological study of the larvae proved them as w. magnifica. this is the first report of dental cavity myiasis from iran.

The title compound, C20H15N3OS, is V-shaped. In the 4-phen-oxy-phenyl group, the two rings are inclined to one another by 74.52 (13)°. These rings are inclined to the triazole ring by 72.20 (15) and 72.30 (15)°, respectively. The phenyl ring is inclined to the triazole ring by 10.85 (12)°. In the crystal, mol-ecules are linked via N-H⋯N hydrogen bonds, forming chains propagating along [010]. Th...

Foundations of structures which are subjected to uplift loading require anchoring systems to resist pullout loads. Such anchors can be broadly classified as gravity anchors, pile anchors and plate anchors. Plate anchors can be circular, square or strip in shape. The loading applied on plate anchors can be vertical, inclined or horizontal depending on the anchor orientation. In this study, vario...

abstract : before initiating any endodontic therapy, probability of extra canals should be considered. the incidence of three canals in mandibular second premolar has been reported to be 0.46-0.5%. the present report describes nonsurgical endodontic treatment of three mandibular second premolars with three canals. in these cases, three orifices were located in mesiobuccal, distobuccal and lingu...

Abstract In the radargram obtained by high-frequency lunar penetrating radar onboard Chang’E-3 mission, we notice a potential subsurface cavity that has smaller permittivity compared to surrounding materials. The two-way travel time between top and bottom boundaries of is ~ 21 ns, entire zone located within continuous ejecta deposits Ziwei crater, which generally have similar physical propertie...