An investigation on the percentage of two root canals in the distal lower first molars using staining – section method (In- vitro) Dr. H. Razmi *- Dr. H. Hooshyar ** *- Associate Professor of Endodontics Dept.-Faculty of Dentistry – Tehran University of Medical Sciences. ** - Dentist. Background and Aim: The number of roots, the number and configuration of root canals in distal root of lower fi...

wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...

Introduction: Knowledge of curvature situation of teeth plays an important role in successful endodontics treatment. For a proper endodontic treatment, it is not only important to know the form of normal anatomy of teeth but one must also know its possible different form. The goal of this study was curvature study of the first maxillary molar human teeth. Methods: In this descriptive study cu...

Objective: In comparison to clinical oral health indices, perceived oral health measures are less applied in large-scale epidemiological oral health studies in Iran. The aim of this study was to measure perceived oral health among adults in Tehran, Iran. Methods: In this cross-sectional study, perceived oral health was measured in 1100 adults in Tehran by two measures: 1- non-replaced extracted...

one very decisive factor in students’ academic destiny is the result they get at final term examinations. because of its importance, both students and teachers are curiously anxious about them. as normally it is the case, these final term tests are prepared hurriedly in short time by teachers which result in students’ dissatisfaction, complaining on how the test was different from their expecta...