Being the most difficult to detect unusual canal in mandibular molars, creating greater anatomical complexity and thereby variability, it is important that careful investigation aids in successful endodontic treatments. Objective: To evaluate the incidence and features of MMC in mandibular molars; to study demographic parameters and dental factors...
The value of dental radiographs to oral health care decision making must be balanced with radiation safety to minimize patient exposure and occupational risk of oral health care providers. This review summarizes recommendations and regulatory guidance regarding dental radiography and cone-beam computed tomography. An expert panel presents recommend...
Background:
Dental film mounting is an essential but time-consuming task in dental radiography, with manual methods often prone to errors. This study aims to develop a deep learning (DL) model for accurate automated classification and mounting of both intraoral and extraoral dental radiography.
Method:
The present study employed a total of 22,33...
This study aimed to evaluate the knowledge level of Dentistry students, who have already taken the Dental Radiology and Maternal Child 1 courses at the University of Caxias do Sul in May 2020, on the appropriate prescriptions and protocols of different imaging exams in their daily clinical practice. Materials and Methods: A questionnaire was develo...
BACKGROUND Radiography is one of the important tools that dentists use to diagnose dental diseases in the oral cavity. Exposure of radiation is associated with hazardous effects on oral tissues. Doctors must have enough knowledge regarding the consequences of radiation exposure. The purpose of this study was to assess knowledge and perspective of d...
The present study aims to investigate the effect of using (CaWO 4) as intensifying screen on radiation dose received by patients exposed to dental investigation by x-ray. It was found that intensifying screen increases, the radiation dose from)4-6(times according to the properties of the intensifying materials used. The optical density of the x-ray...
The present study aims to investigate the effect of using (CaWO 4) as intensifying screen on radiation dose received by patients exposed to dental investigation by x-ray. It was found that intensifying screen increases, the radiation dose from)4-6(times according to the properties of the intensifying materials used. The optical density of the x-ray...
Aim: To study the effect of using intensifying screen (Rare Earth) ,with a film which dose not exist with it. Materials and Methods: The patient received the radiation dose during dental fustigation by x-ray radiation. The optical density of the x-ray film was measured using densitometer. Result: A decrease in radiation dose was approximately 20% f...
Aim: To study the effect of using intensifying screen (Rare Earth) ,with a film which dose not exist with it. Materials and Methods: The patient received the radiation dose during dental fustigation by x-ray radiation. The optical density of the x-ray film was measured using densitometer. Result: A decrease in radiation dose was approximately 20% f...
In this study, an intra oral dental unit (Siemens-70) at King Abdul Aziz University (KAU) Dental Hospital was selected and investigated for visual image quality assessment and radiation protection purposes. Radiation dosimetry for determining the optimum image quality with the lowest radiation exposure to the patient was carried out. A DXTTR dental...
Dental radiography plays an important role in the diagnosis of the mouth and teeth diseases. Different methods are used for improving the quality of radiographic images of patient and for limiting the contact with ionization radiation. The aim of this study is to evaluate the frequency of radiographic errors of periapical. In this study, a number o...
Background: The evaluation of periapical radiographic evidence of these foramina might be helpful to avoid hemorrhaging of the highly vascularized regions of the floor of the mouth. Accuracy and reliability of the dental radiography in depicting the interalveolar medial foramina on 28 dry mandibles was tested in this study. Materials and Methods: T...
Objective
To evaluate the knowledge and practice regarding safety standards of oral radiology among dental practitioners in Mumbai, India.
Methods
A cross-sectional study was conducted among 200 dental practitioners. Data related to methods of radiation protection were collected by a predesigned, pretested, self-administered questionnaire. The data...
Aims: This study compared fractal dimension (FD) values on mandibular trabecular bone in digital and digitized images at different spatial and contrast resolutions. Materials and Methods: 12 radiographs of dried human mandibles were obtained using custom-fabricated hybrid image receptors composed of a periapical radiographic film and a photostimula...
Digital x-ray systems offer advantages over conventional film systems, yet many dentists have not adopted digital technology.
To assess New Zealand dental practitioners' use of--and preferences for--dental radiography systems.
Cross-sectional survey.
General and specialist dental practice.
Postal questionnaire survey of a sample of 770 dentists (52...
To compare different radiographic methods for assessing endodontically treated teeth.
Root canal treatments were applied in 120 extracted mandibular teeth, which were divided into four groups: (1) ideal root canal treatment (60 teeth), (2) insufficient lateral condensation (20 teeth), (3) root canals filled short of the apex (20 teeth), (4) overfil...
Forensic odontology is the application of dental expertise to legal issues. Commonly, it involves the comparison of dental records of a missing person with a deceased individual for the purposes of forensic personal identification, either in a single case, or as part of the response to an event involving multiple simultaneous fatalities (Disaster V...
The purpose of this study was to evaluate the reliability and accuracy of a radiographic analysis method for the location of mini-implants inserted in the posterior region of the maxilla.
Two self-drilling mini-implants were installed between the second premolar and the first molar on the right side and left side in three dry skulls. Three operator...
The purpose of the present study was to compare conventional intraoral periapical radiographs (PA) with limited cone beam computed tomography (CBCT) for evaluation of mandibular molars prior to apical surgery. The apical extent and homogeneity of the root canal fillings (RCF) as well as the number of root canals were examined.
38 molars with 75 roo...
The aim of this study was to determine the relationship between the amount of calcium loss, lesion depth, and the accuracy of storage phosphor plate (SPP) and film radiographs for the detection of artificial proximal demineralization.
Standard enamel windows of extracted premolars were exposed to a demineralizing solution for 60 h, 80 h, 100 h and...
The aim of this study was to compare the properties of the DFL Contrast FV-58 F-speed film (DFL Co., Rio de Janerio, Brazil) with the Kodak Insight E/F speed film (Eastman Kodak, Rochester, NY) in fresh and exhausted processing solutions. The parameters studied were the speed, average gradient and latitude.
Five samples of each type of film were ex...
The aim of this report is two-fold. First it analyses the precision of a modification of the parallel technique that can be used in those cases with anatomical limitations. Second, it checks the influence of the reference points' definition of objects to be measured by using both the original and the modified radiographic techniques. 2 intraoral ra...
The aims of this study were (1) to compare the accuracy of the detection of approximal enamel caries lesions using three intraoral storage phosphor plate digital systems and one conventional film-based radiographic system; and (2) to determine whether there is a correlation between the histological and radiographic measurements of enamel caries.
16...
Introduction: The detection of marginal gaps at the implant‐abutment interface is a common clinical task in prosthodontic treatment. For the detection of the gap intraorally, especially under thick soft tissues the most common method is dental radiography.
Objective: The objective of this experimental study was to investigate the accuracy of conser...
Our aim was to compare the Accu-I-Tomo (3DX), the Digora Optime image plate system and F-speed film in detecting chemically created apical lesions.
Lesions were created by applying perchloric acid apical to extracted teeth in jaw specimens for 1, 1.5 or 2 h. After being repositioned, teeth were radiographed with Accu-I-Tomo limited cone beam CT (LC...
Abstract The present study aims to investigate the effect of using (CaWO4) as intensifying screen on radiation dose received by patients exposed to dental investigation by x-ray. It was found that intensifying screen increases, the radiation dose from )4-6( times according to the properties of the intensifying materials used. The optical density of...
Aim: This in vitro study evaluated the accuracy of primary incisor lengths determined by digital and conventional radiography compared to the actual tooth length. Methods: Twenty extracted primary maxillary incisors were mounted in acrylic blocks. Tooth length was estimated by using a straight-line measurement provided by the distance measurement t...
Aim: To study the effect of using intensifying screen (Rare Earth ),with a film which dose not exist
with it. Materials and Methods: The patient received the radiation dose during dental fustigation by
x-ray radiation. The optical density of the x-ray film was measured using densitometer. Result: A
decrease in radiation dose was approximately 20% f...
To test the efficacy of conventional radiometry with indirect digital image analysis in the assessment of the relative radiopacity of dental cements used as liners or bases compared to human enamel and dentin.
Disks of 15 different dental cements, 5 mm in diameter and 2 mm thick, were exposed to radiation together with 2-mm-thick disks of enamel an...
To evaluate the accuracy and reliability of conventional (Kodak Ektaspeed Plus film) and digitized radiographic images to detect the presence as well to estimate the size, as measured by an image analysis programme, of periapical radiolucencies induced in dog teeth in comparison with the histomorphometric data obtained from the same lesions by conv...
To compare the subjective quality of limited cone-beam computed tomography (LCBCT), storage phosphor plate (SPP) and F-speed film images for the evaluation of length and homogeneity of root fillings.
Root canals of 17 extracted permanent mandibular incisor teeth were filled. With the teeth placed in their jaws, images were obtained with Accu-I-Tomo...
Obtaining lifetime diagnostic radiation histories in head and neck cancer studies is often challenging due to the almost universal lack of centralized registries on X-ray utilization in medicine and dentistry. Both the common nature of orthodontics and the young age at which orthodontics typically occurs make it important to quantify what diagnosti...
Dose width product (DWP) is the quantity recommended for assessment of patient dose for panoramic dental radiography. It is the product of the absorbed dose in air in the X-ray beam integrated over an exposure cycle and the width of the beam, both measured at the receiving slit. A robust method for measuring the DWP is required in order to facilita...
To see if there were any differences in the ability of final year dental students at two UK dental schools, who were within 4 months of graduation, to identify radiographic film faults.
The two groups of undergraduates were shown 11 dental radiographs using a slide format. The 11 radiographs included 8 films with film faults, 2 films without techni...
To compare the subjective image clarity of two different speed films and the Digora phosphor plate images with respect to the length and homogeneity of root canal fillings.
Root canal treatment was performed on 20 extracted permanent mandibular first molar teeth. Standardized images of each tooth positioned in a dried mandible were obtained with E-...
To provide an overview of radiographic film holders, from their inception in the early 1900s to present day.
A Medline literature search was conducted for dental studies that used keywords that pertain to radiographic film holders. Hand searches of the bibliographies were also conducted. Sixty articles (dating from 1896 to 1998) that describe new o...
The lead content of the foil backing of 4 types of intraoral film commonly used by dentists was 69% to 85%. An environmental issue exists because these foils are typically thrown out with regular refuse, even though recycling programs exist. For a new adult patient, a full-mouth radiographic series would generate 11.2 g of waste lead; for a 6-month...
To compare psychophysical properties of two intraoral films and three digital systems using the perceptibility curve (PC) test.
A test object was used to determine the exposures and exposure differences between the total thickness of the test object and details consisting of holes of increasing depth. The PCs for the two intraoral films, UltraSpeed...
This study evaluated the performance of aluminum-copper alloy filtration, without the original aluminum filter, for dental radiography in terms of x-ray energy spectrum, air kerma rate and image quality. Comparisons of various thicknesses of aluminum-copper alloy in three different percentages were made with aluminum filtration. Tests were conducte...
In July 2002, a new dental insurance program was introduced in Sweden. For all patients over 65 years, prior approval for all prosthetic work would need to be obtained from the Dental Insurance Office. From October to December 2002, 540 cases were randomly selected for evaluation from the 14,624 applications that had been sent from throughout Swede...
The present study compared the efficacy of digital and conventional radiology for root-canal length measurement.
Seventy extracted teeth with pre-served roots were used. Root-canal length measurements were completed with K-Flexofiles (numbers 08, 10 and 15) with conventional and digital radiography using two systems (radiovisiography and photostimu...
The purpose of this study was to assess the experiences of general dental practitioners (GDPs) with solid-state and storage phosphor digital sensors compared to film.
In a mail survey 578 questionnaires were sent to Dutch GDPs who were users of digital X-ray detectors and film. The questionnaire requested demographic data, information about the dig...
Digital radiographic imaging in dentistry has matured. All the reasons dentists have cited for keeping conventional, film-based systems have been refuted: cost, sensors, storage, and training are not issues. There are many reasons to switch to digital. This article outlines external factors that dentists may not have considered that will influence...
A new laser fluorescence method, KaVo DIAGNOdent, was tested with respect to reproducibility and validity and compared with radiography regarding accuracy in the detection of occlusal caries. Seventy-six extracted premolar and molar teeth were measured twice with DIAGNOdent under both wet and dry conditions, at an interval of 2 weeks. Conventional...
To determine the optimal parameters for the digitisation and display of intra-oral radiographs.
Six intra-oral radiographs (EP size 2 dental film, Eastman Kodak Co., Rochester, NY, USA) were digitised using an Arcus II image scanner (Agfa-Gevaert N. V., Mortsel, Belgium). Each film was digitised at 8 bits, with and without a film mask, using three...
To examine the effects of developer age on image quality.
Endodontic files, size 10 and 15, were placed in upper and lower molars and premolars up to the root apex or 1.5 mm short. A series of radiographs were made with each of three film types: Dentus M2 (Agfa-Gevaert, Mortsel, Belgium), Ektaspeed Plus and Ultra-speed (Kodak Eastman Co, Rochester,...
To compare the diagnostic accuracy for the detection of approximal caries of three dental X-ray films using fresh and aged processing chemicals.
Fifty-six extracted unrestored premolars were radiographed under standardized conditions using the new Dentus M2 (Agfa-Gevaert, Mortsel, Belgium), Ektaspeed Plus and Ultra-speed (Kodak Eastman Co, Rocheste...
To compare the diagnostic performance provided by two- (film and digital radiography) and three-dimensional imaging modalities (TACT slices and TACT pseudoholograms) in the detection of primary caries.
Forty-two extracted human posterior teeth were mounted and imaged with conventional film and direct digital radiography. Free-hand positioning of a...
To examine the effects of exhaustion of five different processing solutions on the sensitometric properties of four dental X-ray films: Ektaspeed Plus and Ultra-speed (Kodak Eastman Co. Rochester, USA) and new and previous Dentus M2 (Agfa-Gevaert, Mortsel, Belgium).
An aluminum stepwedge was used to construct characteristic curves for the four film...
To compare the sensitometric properties of four dental films: Ektaspeed Plus and Ultra-speed (Kodak Eastman Co, Rochester, USA) and new and previous Dentus M2 (Agfa-Gevaert, Mortsel, Belgium) in five different processing solutions.
Characteristic curves were constructed for four dental X-ray films using five different processing solutions. All film...
The main object of this clinical study is to provide a simple and practical method to assess the pubertal growth spurt stages of a subject by recording MP3 stages with the dental periapical radiograph and the standard dental x-ray machine.
To measure the entrance dose from periapical radiography in Greece and to determine the relative influence of factors affecting it.
Special packs, containing a questionnaire, a film (X-Omat MA 18 x 22.4 cm, Ready Pack, Kodak-Pathe, Paris, France) with an attached aluminium stepwedge and a pre-exposed Ektaspeed Plus (Kodak) film, were mailed to 550...
To develop a radiographic method for measuring radiation dose based on beam quality for inexpensive postal surveys of general dental practitioners.
Different beam qualities were simulated to expose a commercially available film (X-Omat MA 18 x 22.4 cm, Ready Pack, Kodak Pathe, Paris, France). Density and contrast curves were fitted by means of 4th-...
To evaluate three extra-oral radiographic imaging modalities as alternatives to conventional intra-oral film for the detection of primary caries.
Sixty-four extracted primary molar teeth with eighty-five carious lesions were radiographed using D-speed film (N = 8), panoramic imaging (N = 8), multidirectional tomography (N = 8), and linear tomograph...
To compare the standards of periapical radiography with a CCD-image receptor with film.
Three radiography technicians exposed a total of fifty teeth from all areas of the jaws using either size 1 or size 2 film and the Sidexis (Siemens, Bensheim, Germany) direct digital dental radiography system with the appropriate film holders. Image quality was...
To investigate the radiographic contrast of three dental X-ray films (Ultra-speed, Ektaspeed and Ektaspeed Plus, Eastman-Kodak, Rochester, NY, USA).
An aluminium stepwedge was radiographed for the objective assessment and a dried human mandibular segment including the teeth for the subjective evaluation. In the objective assessment, contrast was ev...
We used digitized dental radiographs of alveolar bone to test the hypothesis that the fractal dimension, as calculated with the program "ImageFractal" was independent of variations in X-ray exposure, beam alignment, and region of interest placement.
The radiographic data set consisted of 72 radiographs digitized with 200 microns pixels. Radiographs...
To compare the sensitometric properties and accuracy in the diagnosis of approximal caries of two E-speed (Ektaspeed Plus and EV 57) and two D-speed (Ultra-speed and DV 57) films.
Speed and contrast for the four films were determined following 30 exposures for each film. Base plus fog density was measured on unexposed films and the increase was stu...
To compare the accuracy of approximal caries detection using enhanced and unenhanced storage phosphor images and dental X-ray film.
Fifty premolar/molar teeth were exposed simultaneously under standardized conditions on storage phosphor (SP) image plates (Digora) and Ektaspeed film. The image files were transferred to a different platform for image...
The diagnostic accuracy of direct digital radiography for the detection of small, experimentally made, periapical lesions was compared with that of E speed film. The high- and low-contrast resolutions of the imaging systems were also compared.
The high-contrast resolution was evaluated with a line pair plate. The low-contrast resolution was determi...
To investigate the use of E-speed film and rectangular collimation by Swedish dentists as a means of dose limitation in relation to their attitudes towards radiation hazards.
A questionnaire was sent to 2000 randomly selected general dental practitioners to assess their use of different types of dental X-ray film and collimators and their attitudes...
Direct digital imaging systems are becoming increasingly common in dental radiography. The majority of these systems are based on charge coupled device (CCD) technology. A relatively new system, based on photo-stimulable phosphor luminescence (PSPL), is now commercially available. This system appears to overcome some of the restrictions of CCD syst...
A number of products are available to dentists for the rapid production of intraoral radiographic films but there is little information on their relative merits. This study evaluated the performance of five "rapid" film processing products commonly used by British dentists in comparison with standard Kodak manual processing. Two Perspex contrast-de...
A study of film reject and repeat rates was undertaken in the Department of Dental Radiology of King's College School of Medicine and Dentistry over a 6 month period. The aim of the study was to assess the effects of changes implemented after a previous audit, and to carry out a more detailed analysis of the factors influencing the reject and repea...
Radiometric analysis can be used to identify small changes in grey levels taken from investigator-defined regions of interest (ROIs). To do this, standardization of the radiographic optical densities and image grey scales is considered essential. Rigid standardization is one of the impediments to applying existing radiometric techniques to clinical...
The use of K-edge filters and fast speed dental (non-screen) film have been separately shown to reduce the radiation dose imparted during dental radiography. The effect of these on image quality has been unclear. This study objectively examines the effect on image quality of eight film/filter systems: E- and D-speed film and four filter systems (th...
Thirteen groups of periapical radiographic films were evaluated to determine and compare within and between groups the effects of contamination of the fixer solution with developing solution during radiographic processing. An aluminum penetrometer was used as the radiographic object to produce different optical densities. The images were compared u...
Studies of observer performance with non-manipulated digital images are almost lacking; nor has the effect of cathode ray tube (CRT) display formats been evaluated. The present study compared the diagnostic accuracy of observers with and without clinical experience in evaluating intra-oral dental films and the corresponding non-manipulated digitize...
Technical evolution in maxillofacial radiology has in the last decade provided faster films and the constant potential generator. The consequences of these innovations for radiographic contrast and energy imparted to the patient are analysed. On the basis of physical measurements a test model has been developed for correcting exposure parameters in...
The slice width of a computed tomography scanner can be considered as the full width at half maximum (FWHM) of the slice dose profile. A method is described which uses dental film to image the slice and allows the FWHM of the dose profile to be determine directly from the digitization and analysis of the film image.
A new dental X-ray film, Agfa Gevaert Dentus M4, has recently been introduced. Its diagnostic ability for approximal caries and its sensitometric properties were compared with those of Kodak Ultraspeed and Ektaspeed dental X-ray films. Seven general practitioners and six consultants in oral radiology recorded both incipient and manifest approximal...
Advances in optical and x-ray imaging will affect dramatically the practice of dentistry in the next decade. "Hard copy" of these images will be on thermographic paper from videoprinters as well as x-ray film. Reconstruction of images in both (two and three dimensions) will allow better visualization of disease processes and allow quantification of...
Oral fluids are potential contaminants of radiographic processors. This investigation measured bacterial contamination in a radiographic processing room during times of high and low clinical activity and processing effects on five types of microorganisms. Cultures in the clinical setting, during high and low activity, were taken by brain-heart infu...
A survey which included brief case histories and intraoral photos of four transitional dentitions, including examples of ectopic and delayed eruption, as well as carious lesions, was mailed to a random sample of 2000 general dentists and 1000 pediatric dentists. Radiographic options were listed, from which each dentist was to indicate all films nee...
An experimental imaging device based on analogue video-enhancement was evaluated by comparing the information yield of three different screen/film radiographic combinations with that from conventional viewing methods. Twenty radiographic images of variable density for each screen/film combination were produced by exposing a test object for between...
The authors studied the influence of storage conditions of date and outdated films and the action of environment temperature over the same films. Four groups of films were studied: twenty-five outdated and twenty-five date films were under refrigeration; twenty-five date and twenty-five outdated films were under 36 degrees C temperature and 70% hyg...
The information yield from two rare-earth screen-film combinations, Lanex Regular/T-Mat G (TMG) and Lanex regular/Ortho L (OL) has been compared with that from a conventional calcium-tungstate combination, X-Omatic regular/RP X-Omat (XRP), by means of perceptibility curves generated from an aluminum test object. The TMG and OL systems were faster t...
A method, combining the standardization of radiographs with consistent radiopaque marker placement using a controlled force, is presented. Ten adult volunteers with healthy mouths were selected. Customized radiographic film holders were fabricated consisting of a plastic stent of the maxillary or mandibular arches to which a radiographic bite-block...
Background : Extraoral radiography techniques, such as panoramic radiography and cephalometric radiography, are used to obtain an overall view of the teeth, jaws, and surrounding tissues. However, there are instances where radiographic images are rejected or marked as inadequate based on the required quality standards. Reject analysis is a method o...
Errors and artefacts in dentomaxillofacial include positioning errors in intraoral techniques, panoramic radiography, cephalometric radiography, incorrect handling of X-ray films in analogue radiography, incorrect chemical processing of X-ray films in analogue radiography, incorrect read-out of digital radiographs, errors and artefacts in cone-beam...
This chapter discusses the purpose, principle of operation, specifications, and applications of dental radiographic units. These units are used for imaging dentition, individual tooth anatomy (e.g. crown, neck, root), and dental problems (e.g. caries) in patients, as well as for orthodontic planning and assessment. The dosage of X‐ray radiation use...
The role of the BDJ is to inform its readers of ideas, opinions, developments and key issues in dentistry - clinical, practical and scientific - stimulating interest, debate and discussion amongst dentists of all disciplines.
A total of 34 044 official quality assurance reports in dental radiodiagnostic surgery from 16 regions of Spain, compiled
from 2002 to 2014, were studied in order to determine the progress of diagnostic reference levels (DRLs) for obtaining diagnostic
images under normal conditions for clinical practice in Spanish dental clinics. A DRL of 2.8 mGy w...
Practical relevance:
Information crucial to the diagnosis and treatment of feline oral diseases can be ascertained using dental radiography and the inclusion of this technology has been shown to be the best way to improve a dental practice. Becoming familar with the techniques required for dental radiology and radiography can, therefore, be greatl...
Digital dental radiography allows for exchange of images between primary and secondary care. However, it is common practice for radiographs to be printed out and attached to referrals.This study investigates the loss of diagnostic information of printed radiographs compared to the on-screen digital image.The best quality was achieved with images pr...
Conventional Intra-Oral Radiograph Film Indirect Digital Radiograph Film – Phosphor Plates Radiographic Accessories and Equipment Extra-Oral Radiographs
In the diagnosis and treatment of oral and dental diseases in dogs and cats, digital intraoral radiography offers many advantages over the use of standard dental radiographic film, including rapid image generation, easier exposure correction, enhancement, and paperless storage. Digital image receptors can be divided into 2 main types, direct digita...
To evaluate the implementation of quality assurance requirements for digital dental radiography in routine clinical practice. The results should be discussed by radiation protection authorities in the context of the relevant legal requirements and current debates on radiation protection.
Two hundred digital dental radiographs were randomly selected...
Unlabelled:
This is the last in a series of three articles on X-ray dose reduction and covers aspects of quality assurance. The first outlined radiation physics and protection and the second the legislation relating to radiation safety.
Clinical relevance:
Quality assurance is an essential part of dental radiography and is required to produce im...
Aim of the present study was to assess microbial contamination of radiology procedures.
Patients who needed radiographic exams were selected and the bisecting technique was used: G1 - (control): absence of plastic barrier and overgloving or disinfectant solutions; G2 - alcohol spraying; G3 - protection of the film with a plastic barrier and alcohol...
La réduction des risques liés à l’utilisation des rayons ionisants est une préoccupation constante des praticiens mais aussi des législateurs qui ont transposé cette règle éthique dans le Code de la Santé Publique. Cette réduction des risques s’exprime à travers l’un des principes fondamentaux en radioprotection : la justification de tous les actes...
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 a...
The aim of this study was to assess the accuracy of cone beam CT (CBCT) in detecting vertical root fractures and to compare the accuracy with images from an intraoral sensor and from conventional intraoral film.
60 extracted, single-rooted human teeth were divided equally into two groups: a control group of 30 teeth and an induced fracture group of...
A total of 16 175 official reports of quality assurance on dental radiodiagnostic surgeries from 16 Spanish autonomous regions
compiled during 2002–09 were studied to determine the evolution of diagnostic reference levels (DRLs) for obtaining a diagnostic
image in the normal conditions of clinical practice in Spanish dental clinics. A DRL of 3.1 mG...
To compare a customized imaging guide and a standard film holder for obtaining optimally projected intraoral radiographs of dental implants.
Intraoral radiographs of four screw-type implants with different inclination placed in an upper or lower dental phantom model were recorded by 32 groups of examiners after a short instruction in the use of the...
Vertical root fractures (VRFs) can only be detected by radiography. In recent years, direct digital dental radiography (DDR) has become a substitute to film-based radiography. Purpose of this study was to compare accuracy and reliability of charge couple device (CCD)-based direct digital radiography with conventional radiography (CR) in VRF diagnos...
Introduction: The Ordinance 453 of the Brazilian Ministry of Health recommends processing intraoral radiographic films in opaque portable dark chamber without display and using the temperature x time method. However, the processing using the visual method in dark chambers with acrylic polymer display is still frequent. The aim of this study was to...
