ABSTRACT Background: Implant‐supported prostheses are today often used in rehabilitation of partially or totally edentulous patients. Both patients and the dental profession regard implant treatment as successful a life perspective. Therefore, studies with long‐term follow‐up important. Purpose: The aim was to investigate outcome fixed jaws after 20 years, special reference survival rate implants frequency peri‐implantitis. Materials Methods: patient material group treated early 1980s....

ABSTRACT Aims The Education Committee of the European Academy DentoMaxilloFacial Radiology should ‘ encourage and support high levels graduate postgraduate education in dentomaxillofacial radiology ( DMFR ) all over Europe ’. For this reason, committee aimed to formulate a document describing resources allocated for undergraduate within oral today that can serve as benchmark against which dental schools and/or countries with dentistry programmes relate their education. Materials Methods A...

Cardiovascular disease is a common cause of morbidity and premature mortality. can be prevented when risk factors are identified early. Calcified carotid artery atheromas (CCAAs), detected in panoramic radiographs, periodontitis have both been associated with increased cardiovascular disease. This case-control study aimed to 1) investigate associations between CCAA radiographs 2) determine the future myocardial infarctions due combined periodontitis. We evaluated 1,482 participants (738...

The principle effects of image distortion in cephalography are presented. misalignment between the ray source, cephalostat, and film considered as well malpositioning object.

Directed ultrasonic screening for carotid stenosis is cost-effective in populations with > 5% prevalence of the diagnosis. Occasionally, calcifications area arteries are incidentally detected on odontological panoramic radiographs. We aimed to determine if directed ultrasound indicated individuals such calcifications.This was a cross-sectional study. Carotid examinations were performed consecutive persons, findings radiography that otherwise eligible asymptomatic endarterectomy.Calcification...

Background and Aim: Arterial calcification is often detected on ultrasound examination but its diagnostic accuracy not well validated. The aim of this study was to determine the carotid B mode findings in detecting atherosclerotic quantified by cone beam computed tomography (CBCT). Methods: We analyzed 94 arteries, from 88 patients (mean age 70 ± 7 years, 33% females), who underwent pre-endarterectomy examination. Plaques with high echogenic nodules posterior shadowing were considered...

Approximately 7% of patients examined with panoramic radiographs (PRs) for odontological reasons, and incidental findings carotid artery calcification (CAC), have significant (≥50%) stenosis (SCS). The aim this study was to determine if the radiographic appearance CACs in PRs could be categorized such that we improve positive-predictive value (PPV) SCS detection.This cross-sectional included 278 identified by PRs, 127 151 without SCS. were based on following appearances: (1) single, (2)...

Introduction: A radiology simulator has been developed. We tested the with students in an oral program for training interpretation of spatial relations radiographs utilizing parallax. The aim study was to compare learning outcome regarding interpretative skill after vs. conventional training. Methods: Fifty-seven dental voluntarily participated a randomized experimental study. participants' proficiency information and their visual-spatial ability assessed. Proficiency assessed by test...

A simulator for virtual radiographic examinations was developed. In the environment, user can perform and analyze of patient models without use ionizing radiation. We investigated if this simulation technique could improve education radiology technology students. compared student performance in assessment image quality after training with a conventional manikin or radiography simulator.A randomized controlled experimental study involving 31 first-year students performed. It organized 4...

To investigate whether skill in the interpretation of three-dimensional (3D) information radiographs utilizing parallax phenomenon is associated with visual-spatial ability and development this related to ability.Eighty-six individuals a median age 25 years participated study. It was organized into three parts: (1) assessment before training, (2) training object depth localization (3) after training. Before assessed mental rotation test, MRT-A; interpreting 3D two specifically designed...

The purpose of this project was to investigate the long-term effects on skill interpret spatial information in radiographs after conventional and simulator-supported training. study a follow-up previously reported randomized experimental study. original population comprised fifty-seven dental students. Forty-five individuals agreed participate eight months completion During time interval between previous study, participants underwent an examination oral radiology had theoretical clinical...

Background Drawing on Donald Schön’s concepts, this article investigates the links between computer simulation training and concepts of reflection-on-action reflection-in-action while participating in dental nursing Aim This explores how collaborative conventional affect students’ reflection processes when learning to interpret radiographic images. Method qualitative study uses interviews from 11 18 students compare experiences (CON-dental students) with intra-oral radiography (SIM-dental...

This article is about collaborative learning with educational computer-assisted simulation (ECAS) in health care education. Previous research on training a radiological virtual reality simulator has indicated positive effects when compared to more conventional alternative. Drawing upon the field of Computer-Supported Collaborative Learning, we investigate patterns, their causes, and implications for learning. We why extent application subject-specific terminology differs between training....

OBJECTIVES To evaluate the validity of computed tomography (CT) for reproduction bone margins temporomandibular joint (TMJ). METHODS Seven TMJ specimens were examined with a CT and then cryosectioned. The separating from middle cranial fossa, ear external auditory canal was measured as full width at half maximum (FWHM). Measurements compared true thickness wall. RESULTS There good agreement when walls thicker than 1 mm: accuracy influenced only by angle wall to scanning plane. Conversely,...

The basic mathematics for calculating the projected image in cephalography are presented. effect of misalignment between ray source, cephalostat, and film is considered as well any malpositioning patient.

Objective: To develop a software for virtual reality (VR) simulation of X-ray images based on perspective projections through patient model derived from data CT examination and to evaluate the accuracy in projection geometry obtained by software. Methods: A VR was developed personal computer, with models patient, an machine detector. The dry skull. Simulated radiographic could be rendered as relative positions between models. validated developing artificial set containing high attenuation...