It is usually difficult for a beginner to understand precisely and quickly the three-dimensional (3D) construction of gastric lesions in a gastric X-ray examination with barium meal. In this study, a training-use stomach phantom was developed using the stomach segment to provide beginners with an understanding of 3D stomach construction. The hook-shaped phantom (the shape of the stomach when a ...

Tricalcium silicate-based materials are growing in popularity for dental procedures. This study reports the physical properties of two experimental tricalcium silicate-based Generex A and B materials. Generex A is designed for vital dental pulp therapy, the repair of root perforations, or to seal a resected root apex. Generex B is designed for nonsurgical root canal procedures as a sealant. ADA...

Different types of X-ray equipment are used in dental radiology, such as intra-oral, panoramic, cephalometric, cone-beam computed tomography (CBCT) and multi-slice computed tomography (MSCT) units. Digital receptors have replaced film and screen-film systems and other technical developments have been made. The radiation doses arising from different types of examination are sparsely documented a...

OBJECTIVES The purpose of this study was to investigate the short-term effects of occlusal splint therapy and tricyclic antidepressants on the bite force and occlusal contact area of patients presenting with nocturnal bruxism. METHODS A maxillary full-coverage hard acrylic splint was applied to the five patients (Group S). Five patients took a tricyclic antidepressant (Amitriptiline HCl, 10 m...

In this study, dose area product (DAP) measurements have been performed aiming at establishing diagnostic reference levels (DRLs) in paediatric intraoral dental radiology. Measurements were carried out at 52 X-ray units for all types of intraoral examinations performed in clinical routine. Not all X-ray units have pre-set child exposure settings with reduced exposure time or in some cases lower...

BACKGROUND AND AIMS The aim of this study was to evaluate x-ray protection methods in dental offices in Tabriz. MATERIALS AND METHODS In this study 142 dental offices were evaluated. A questionnaire-based method was used. The data was analyzed by descriptive methods. RESULTS The least commonly used methods were leaded walls (4.9%) and film badges (16.9%) and the most commonly used methods w...

X‐rays were discovered in 1895 by Wilhelm Roentgen. Digital radiology has overtaken conventional screen‐film radiography since it was introduced in the mid‐1980s.[1] Digital imaging uses sensor of solid‐state, and information is presented and stored as an image using a computer. The dawn of the digital era in dental radiography came in 1987 with the first digital radiography system called radio...

A number of surface modification techniques using immobilization of biofunctional molecules of Titanium (Ti) for dental implants as well as surface properties of Ti and Ti alloys have been developed. The method using passive surface oxide film on titanium takes advantage of the fact that the surface film on Ti consists mainly of amorphous or low-crystalline and non-stoichiometric TiO(2). In ano...

introduction: clinical application of radiography in endodontic practice is affected by reproducibility in the orientation of the x-ray source, image receptor and object. the inability of dentists to locate intra oral films or sensors in appropriate positions in different cases can cause complications in the performance of endodontic therapy. commercially available film holder (endoray) and con...

Diagnostic imaging is an indispensable part of contemporary medical and dental practice. Over the last few decades there has been a dramatic increase in the use of ionizing radiation for diagnostic imaging. The carcinogenic effects of high-dose exposure are well known. Does diagnostic radiation rarely cause cancer? We don't know but we should act as if it does. Accordingly, dentists should sele...