Cone beam computed tomography - Frequency and exposure settings at University (Dental) hospitals in Central and Northern Europe.

Purpose: To investigate the frequency of CBCT scans, the exposure settings, volume sizes and the patient demographics (age and sex) of patients undergoing CBCT scans in university-based dental hospitals in different European countries over a one-year period.

Method: Eight University Dental Hospitals from eight countries in central and northern Europe agreed to collect data from their CBCT-databases. Exposure data including field of view (FOV), dose area product (DAP) and optimization settings plus (anonymous) age and sex of the patients were collected for the entire year 2023.

Temporomandibular Joint Discectomy in Patients With Disc Displacement: Assessment of Osteoarthritis at 10- and 30-Year Follow-Up.

Background: Few ≥ 10-year follow-up studies of temporomandibular joint (TMJ) discectomy without replacement in patients with disc displacement (DD) analyse the relationship between the surgery and osteoarthritis (OA) exist.

Objectives: To radiologically evaluate bony joint changes and OA development 10 and 30 years after TMJ discectomy as well as 30-year clinical outcome.

Methods: Twenty-two discectomy patients at the University of Oslo, Norway, with records confirming initial TMJ diagnosis and attendance of 10-year radiological follow-up were evaluated and eligible for 30-year follow-up.

Temporomandibular joint pathologies: pictorial review.

In this pictorial review, an introductory paragraph emphasizes the significance of some anatomical aspects for optimal imaging of the temporomandibular joint (TMJ). The most frequent pathologies: internal derangement (ID) and osteoarthritis (OA) are comprehensively discussed and illustrated. Less common conditions: ID and OA-like changes in children and adolescents, idiopathic condylar resorption, inflammatory arthritis, and juvenile idiopathic arthritis are briefly discussed.

The Role of Imaging in the Diagnosis of Temporomandibular Joint Pathology.

Diagnostic imaging is sometimes necessary to supplement the clinical findings in patients with suspected temporomandibular disorders (TMDs). However, the interpretation of pathology in the imaging findings is often complicated by the presence of similar findings in asymptomatic volunteers, as well as by the use of inadequate imaging techniques and poor image quality. This article focuses on these issues and gives guidance on the appropriate use of diagnostic imaging in patients with suspected TMD.

Comparison of Swedish and Norwegian Use of Cone-Beam Computed Tomography: a Questionnaire Study.

Objectives: Cone-beam computed tomography in dentistry can be used in some countries by other dentists than specialists in radiology. The frequency of buying cone-beam computed tomography to examine patients is rapidly growing, thus knowledge of how to use it is very important. The aim was to compare the outcome of an investigation on the use of cone-beam computed tomography in Sweden with a previous Norwegian study, regarding specifically technical aspects.

A phantom for simplified image quality control of dental cone beam computed tomography units.

Objective: The purpose of this work was to develop an inexpensive phantom for simplified image quality assurance (IQA) together with algorithms for objective evaluation of image quality parameters and to integrate these components into an easy-to-use software package. This should help make quality control of dental cone beam computed tomography (CBCT) units accessible, easy, and affordable for any specialist or general practitioner.

Study Design: Our study developed an inexpensive polymethyl methacrylate (Plexiglas) phantom containing objects and structures for objective quantification of the most important image-quality parameters in CBCT imaging.

How do dentists use CBCT in dental clinics? A Norwegian nationwide survey.

Objectives: Cone beam computed tomography (CBCT) was introduced to Norwegian dental clinics in 2007. The aim of the study was to investigate how dental clinics use this imaging modality, including factors related to workflow and image quality, and to evaluate dentists' opinions on and experiences of using it.

Materials And Methods: A web-based 59-item questionnaire regarding the clinical use of CBCT was sent to all 39 CBCT clinics in Norway.