The relationship of articular eminence and mandibular fossa morphology to facial profile and gender determined by cone beam computed tomography.

Objective: The aim of this study was to evaluate the relationship of the morphology of the articular eminence and mandibular fossa to facial profile and sex by using cone beam computed tomography (CBCT) images.

Study Design: CBCT examinations of 76 patients were conducted, and the patients were classified according to facial profile as dolichocephalic, mesocephalic, or brachycephalic. The inclination and height of the articular eminence and the inclination of the mandibular fossa of 152 temporomandibular joints were measured.

Evaluation of the articular eminence and the occlusal surface of the molars by cone beam computed tomography.

The objective of this study was to utilize cone beam computed tomography (CBCT) to evaluate the posterior slope of the articular eminence and the lateral slope of the mandibular fossa in relation to the cusp-fossa angle of the first molars. The evaluation included 93 CBCT images from 93 patients aged 16-30 years. The angle of the posterior slope of the articular eminence was determined from the intersection of a line tangent to the uppermost point of the mandibular fossa and another line tangent to the slope of the anterior wall of the mandibular fossa.

Morphological Evaluation of the Nasopalatine Canal in Patients With Different Facial Profiles and Ages.

Purpose: To evaluate the influence of facial profile and age on the morphology of the nasopalatine canal.

Materials And Methods: One hundred thirty-two cone-beam computed tomograms were classified according to facial profile-mesofacial, brachyfacial, and dolichofacial-and divided into the following age groups: 21 to 30, 31 to 40, 41 to 50, and 51 to 60 years. Measurements were obtained for openings of the incisive and nasopalatine foramina, alveolar bone thickness, and the full length, most constricted region, and volume of the nasopalatine canal.

Influence of scan mode (partial/full rotations) and FOV size in the formation of artefacts in cone beam CT.

Objective: To evaluate the influence of rotation degree and field of view (FOV) size on the amount of artefacts produced in cone beam CT (CBCT) images.

Methods: A cylindrical wax utility phantom, with a metallic sample in its interior, was scanned with two FOV sizes (100 x 100 and 40 x 40 mm) and in full (360°) and partial (~180°) rotations. After the acquisitions, images were objectively assessed in the ImageJ software, obtaining the standard deviation in areas around the metal sample.

Diagnosis of ethmoid sinolith by cone-beam computed tomography: case report and literature review.

Introduction: The aim of this study was to report the first case of diagnosis of a rare ethmoid sinolith by cone-beam computed tomography (CBCT) and discuss the importance of carefully assessing the entire volume of the images regardless of the region of interest.

Case Presentation: A 22-year-old woman underwent CBCT examination to assess the upper permanent canine teeth. Analysis of the entire volume of CBCT revealed an oval-shaped hyperdense, homogeneous, expansive formation with defined boundaries located in the ethmoid bone.

Clinical implications, diagnosis, and treatment of a giant frontoethmoid osteoma.

Osteomas are benign, asymptomatic fibro-osseous tumors that are most commonly observed in the paranasal sinuses and sometimes are found in imaging examinations that were taken for other reasons. Giant osteomas are rarely found in the frontal and ethmoid sinuses but, when they are, they may cause intracranial and orbital complications. The aims of this case report are to describe a frontoethmoid osteoma in a 40-year-old woman, discuss the characteristics of this lesion through cone beam computed tomography (CBCT) imaging, and review the options for treatment.

Correlation between midline deviation and condylar position in patients with Class II malocclusion: A cone-beam computed tomography evaluation.

Introduction: Midline deviation of the mandible and maxilla can affect craniofacial growth and occlusion and cause consequences to the temporomandibular joint. The aim of this study was to evaluate the lateral displacement of the skeletal and dental midlines in relation to the condyle head position in Class II patients with cone-beam computed tomography.

Methods: We used 82 cone-beam computed tomography images.

The assessment of adherence to infection control in oral radiology using newly developed and validated questionnaire (QICOR).

Objectives:: To assess the infection control in oral radiology among radiologists and dentists of diverse dentistry clinical specialties and among dentistry students.

Methods:: A Questionnaire on Infection Control in Oral Radiology was applied to 1006 dentists and 1203 dentistry students. For assessment of infection control, the scores of the questionnaire were dichotomized in high and low through the median.

Foreign bodies in the interior of the maxillary sinus: diagnosis by cone beam computed tomography.

To avoid complications, the intimate relation between the maxillary sinus and dental roots deserves attention during surgical procedures. Accidental introduction of foreign bodies, such as dental implants, may irritate the maxillary sinus mucosa, causing sinusitis. Cone beam computed tomography (CBCT) has been proven to be suitable for diagnosis in these cases by providing the exact location of the foreign body.

Simple bone cyst: rare incidental finding in the mandibular condyle by cone beam computed tomography.

The simple bone cyst (SBC) is a benign intraosseous lesion that is considered to be a pseudocyst because the cystic cavity does not present an epithelial lining. The most accepted theory regarding its etiology is that the SBC develops when the blood clot fails to organize subsequent to bleeding caused by trauma. The SBC is asymptomatic, and therefore the diagnosis is made through routine imaging examinations.

Correlation between the position of hyoid bone and subregions of the pharyngeal airway space in lateral cephalometry and cone beam computed tomography.

Objective: To correlate the pharyngeal airway subregions with the positioning of the hyoid bone.

Material And Methods: The study examined 107 lateral cephalometric (LC) and cone beam computed tomography (CBCT) images. Linear and volumetric measurements of the pharyngeal subregions were made and correlated to linear measurements using hyoid triangle analysis on images of LC and multiplanar (MPR) and three-dimensional (3D) reconstructions of CBCT.