Data management practices of cone beam computed tomography volumes: An exploratory user survey.

Objective: The aim of this study was to query cone beam computed tomography (CBCT) users about their storage and transfer practices to identify trends in the handling of CBCT data in dentistry.

Study Design: A computer-based survey was distributed to 2 CBCT user groups. The survey consisted of 18 questions on settings for data capture, data storage, archiving strategies, bit depth/compression, monitoring user access to patient information, and dissemination to end users.

Effect of image sharpening on radiographic image quality.

Statement Of Problem: The image sharpening algorithm, unsharp masking (USM), may cause artifacts that reduce the diagnostic value of digital images. It may create overshoot artifacts that can be misdiagnosed as pathosis or prosthesis misfit. The effect of this image sharpening and the extent of overshoot artifacts on image quality requires investigation.

Prevalence and Size of Periapical Radiolucencies Using Cone-beam Computed Tomography in Teeth without Apparent Intraoral Radiographic Lesions: A New Periapical Index with a Clinical Recommendation.

Introduction: The purpose of this study was to determine the prevalence and size of periapical radiolucencies using cone-beam computed tomographic (CBCT) imaging in teeth without apparent signs of intraoral radiographic lesions.

Methods: One hundred twenty roots from 53 patients who had been determined to have no signs of intraoral radiographic lesions were included in this study. Limited-volume CBCT scans were taken at 0.

The Influence of Adalimumab on the Healing of Apical Periodontitis in Ferrets.

Introduction: Given the increasing use of anti-tumor necrosis factor α (anti-TNFα) biologic medications, and their interferences with the immune-inflammatory response, this study evaluated the effect of adalimumab (anti-TNFα), on healing and healing time of apical periodontitis (AP) in ferrets.

Methods: Twelve male ferrets received cone beam computed tomography of the jaws at baseline health (T0); AP confirmation (T1); and 30 (T2), 60 (T3), and 90 (T4) days after root canal treatment (RCT) to monitor healing. All animals had AP induced in the canines; 3 ferrets (12 teeth) provided the positive controls for the histologic evaluation; 9 ferrets were randomly divided into 3 treatment groups with 12 teeth each in the following manner: Systemic: conventional RCT and systemic anti-TNFα; Local: RCT and periapical administration of anti-TNFα before canal obturation; conventional RCT only (control).

Prevalence of Second Mesiobuccal Canals in Maxillary First Molars Detected Using Cone-beam Computed Tomography, Direct Occlusal Access, and Coronal Plane Grinding.

Introduction: The purpose of this study was to determine the prevalence of the second mesiobuccal canal (MB2) in 100 maxillary first molars using 3 independent methods and a combination method.

Methods: One hundred extracted human maxillary first molars were collected. The teeth were mounted in the maxillary first molar extraction sockets of a human cadaver head.

Cone-beam computed tomography vs conventional radiography in visualization of maxillary impacted-canine localization: A systematic review of comparative studies.

Introduction: We systematically reviewed observational, experimental, and diagnostic accuracy studies to assess the comparisons between cone-beam computed tomography (CBCT) and conventional radiography (CR) in the localization of maxillary impacted canines.

Methods: An open-ended electronic search of PubMed, Web of Science, ProQuest, and other databases for both published and unpublished articles up to May 2016 was performed. The reference lists of the included studies were screened.

Are three-dimensional airway evaluations obtained through computed and cone-beam computed tomography scans predictable from lateral cephalograms? A systematic review of evidence.

Objective: To systematically review the literature correlating upper airway parameters between lateral cephalograms (LC) and cone-beam computed tomography (CBCT) or computed tomography (CT) scans to determine the utility of using LC to predict three-dimensional airway parameters.

Materials And Methods: Both electronic and manual searches of the included studies were performed by two reviewers, and the quality of the studies that met selection criteria were assessed.

Results: A total of 11 studies from the literature met the selection criteria.

Benign Fibro-Osseous Lesions of the Jaws.

Fibro-osseous lesions are grouped together because histologically they show similar cellular and mineralization patterns. Despite the histologic ubiquity, their behaviors vary significantly. Because of the histologic similarity and the broad range of morbidity among them, it is important to be able to differentiate between them in the preliminary diagnostic process.

Basic principles of cone beam computed tomography.

At the end of the millennium, cone-beam computed tomography (CBCT) heralded a new dental technology for the next century. Owing to the dramatic and positive impact of CBCT on implant dentistry and orthognathic/orthodontic patient care, additional applications for this technology soon evolved. New software programs were developed to improve the applicability of, and access to, CBCT for dental patients.

Measurement of skin dose from cone-beam computed tomography imaging.

Objective: To measure surface skin dose from various cone-beam computed tomography (CBCT) scanners using point-dosimeters.

Materials & Methods: A head anthropomorphic phantom was used with nanoDOT optically stimulated luminescence (OSL) dosimeters (Landauer Corp., Glenwood, IL) attached to various anatomic landmarks.

Comparison of technique errors of intraoral radiographs taken on film v photostimulable phosphor (PSP) plates.

Objective: The objective of this study was to compare the technical errors of intraoral radiographs exposed on film v photostimulable phosphor (PSP) plates.

Methods: The intraoral radiographic images exposed on phantoms from preclinical practical exams of dental and dental hygiene students were used. Each exam consisted of 10 designated periapical and bitewing views.

Evaluation of radiation exposure with Tru-Align intraoral rectangular collimation system using OSL dosimeters.

A pilot study to compare radiation exposure with the Tru-Align rectangular collimation system to round collimation exposures was undertaken. Radiation exposure at various points within the cross sections of the collimators and entrance, intraoral and exit dose measurements were measured using InLight OSL dosimeters. Overall dose reduction with the use of the rectangular collimation system was estimated by taking into account the ratios of collimator openings and the average radiation exposure at the measurement points.

Comparison of the efficacy and technical accuracy of different rectangular collimators for intraoral radiography.

Objective: The objective of this study was to compare the operating efficiency and technical accuracy of 3 different rectangular collimators.

Study Design: A full-mouth intraoral radiographic series excluding central incisor views were taken on training manikins by 2 groups of undergraduate dental and dental hygiene students. Three types of rectangular collimator were used: Type I ("free-hand"), Type II (mechanical interlocking), and Type III (magnetic collimator).

Myositis ossificans circumscripta of the buccinator muscle: first report of a rare complication of mandibular third molar extraction.

Myositis ossificans is a self-limiting ossifying process that most often develops following mechanical trauma to skeletal musculature. It chiefly affects the skeletal muscles of extremities of young athletically active adult males. Myositis ossificans is rare in children except for children affected by heritable disorder known as progressive myositis ossificans (fibrodysplasia ossificans progressiva).

Infection control for dental radiographic procedures.

The employment of proper infection control procedures in the dental office is necessary to prevent the spread of infectious agents. The potential for cross contamination between dental personnel and the patient is considerable when exposing intraoral radiographs. The dental office darkroom or daylight loader can also be a potential contamination source if good infection control measures are not followed.

The accuracy and precision of third molar development as an indicator of chronological age in Hispanics.

The accuracy and precision of chronological age estimation based on the stages of third molar tooth development was studied in a sample of 679 radiographs from individuals of Hispanic origin. The age range was 14.0 to 25.