OBJECTIVE The aim of this in vitro study was to compare the capacity of the Root ZX-II and Mini Apex Locator, electronic apex locators (EALS), to prevent overestimated working length. STUDY DESIGN Forty extracted human teeth were used for the study. The cervical portion of each canal was flared using Gates Glidden drills and the teeth were embedded in an alginate model. Canals were irrigated ...

In the field of security software, the Common Criteria (CC) constitute an ISO standard for the evaluation of products and systems from Information Technologies. The international recognition of the Common Criteria justifies the investment undertaken by the manufacturers to obtain the certification of their products. The evaluation criteria are defined according to the Evaluation Assurance Level...

Practitioners face several challenges during the root canal treatment of teeth with wide or immature apices, one of which is working length determination. There is relatively little data regarding the value of radiography and electronic apex locator (EAL) use when root formation is incomplete, and supplementary measurement techniques may be helpful. This review considers length determination fo...

Subject PI demonstrated superior memory using a variant of a Method of Loci (MOL) technique to recite the first digits of the mathematical constant pi to more than 2(16) decimal places. We report preliminary behavioral, functional magnetic resonance imaging (fMRI), and brain volumetric data from PI. fMRI data collected while PI recited the first 540 digits of pi (i.e., during retrieval) reveale...

535.Ship I. I. and Mickelsen 0. 1964. The effects of calcium andphosphate on dental caries in children: a controlled clini-cal trial. J. dealt. Rcs. 43, 1144 1149.Stephen K. W., Beeley J. A., MacFadyen E. and Bowen W. H. 1973. The effect of calcium glycerophosphate tablets on the composition of plaque from school children. He/u.odont. Acta 17. 54. Abstract.Stookey G. K.,...

INTRODUCTION The purpose of this study was to compare the accuracy of working length (WL) measurements by using the Root ZX II, Apex NRG XFR, and Mini Apex Locator with rotary nickel-titanium (NiTi) instruments. METHODS Twenty-eight teeth had their WLs determined with each electronic apex locator (EAL) by using 0.04 taper ProFiles sizes 40-20 in a crown-down technique until WL was reached. Fo...

BACKGROUND Electronic apex locators (EALs) are modern devices used to determine the working length during root canal preparation. The newest endodontic motors provide an integrated EAL with auto-stop function to prevent instrumentation beyond the predefined working length during rotary root canal preparation. The aim of this study was to compare the accuracy of the auto-stop function of the VDW...

INTRODUCTION Use of mobile phone has been prohibited in many hospitals to prevent interference with medical devices. Electromagnetic radiation emitted from cellular phones might interfere with electronic working length determination. The purpose of this in vitro study was to evaluate the effect of a smart phone (Samsung Galaxy Note Edge) on working length determination of electronic apex locato...

o bjectives: correct determination of working length is an important step for suc- cess of endodontic therapy. conventional radiography has limitations in providing the accurate location of apical foramen. for this reason, electronic apex locators (eals) were developed to shorten the treatment time and decrease the radiation dose. the aim of this study was to evaluate the accuracy of root zx ea...

Particular interest to those who arie teachers of patho.?f?y and medicine. The possibilities of such a museum Is unlimited and it may be made the centre of teaching !n a medical school. The underlying idea is to illusrate in graphic form, for the students, the principle of he correlation of the gross and microscopic lesions Vlth the clinical findings and x-ray picture. The original history and ...