Aim of the study: To determine the efficacy of Radiovisiography in estimating working length and to compare the accuracy of working length determination between radiovisiography and conventional radiographic methods. Materials and method: A total of 100 samples from 20 single rooted and 30 multirooted teeth were taken. Working length was estimated by both conventional radiographic method (CLrad...

conclusions according to the results of this study, the accuracy of the file length in improved digital images showed no significant difference in comparison with the actual file length. materials and methods using an analytical-diagnostic method, an access cavity was prepared in 36 mandibular and maxillary premolar teeth. a file # 15 was inserted into the canal of each tooth until the tip of t...

In this paper, an M/M/1 queue with working vacation and vacation interruption is investigated. The server is supposed to take a working vacation whenever the system becomes empty and if there are at least N customers waiting in the system at a service completion instant, vacation interruption happens and the server resumes a normal working period. A matrix geometric approach is employed to obta...

background: the aim of this study was to compare the accuracy of the apex-locating functions of dentaport zx, raypex 5 and endo master electronic apex locators (eals) in vitro. materials and methods: thirty extracted human single-rooted teeth with mature apices were used for the study. the real working length (rwl) was established by subtracting 0.5 mm from the actual root canal length. all tee...