Comparison between observer-based and AI-based reading of CBCT datasets: An interrater-reliability study.

Objective: To assess the performance of human observers and convolutional neural networks (CNNs) in detecting periodontal lesions in cone beam computed tomography (CBCT), a total of 38 datasets were examined. Three human readers and a CNN-based solution were employed to evaluate the presence of periodontal pathologies in these datasets.

Materials And Methods: Datasets were acquired with a Veraview X800 L P (JMorita Mfg.

Comparison of manual and dose reduction modes of a MORITA R100 CBCT.

Objective:: To compare effective dose differences when acquiring (1) dose reduction mode and (2) manual mode in a MORITA R100 CBCT.

Methods:: 24 exposure protocols with different technique factors were performed in both the dose reduction mode and the manual mode in a Veraviewepocs 3D R100 cone beam CT device. 48 TLD were placed in a RANDO head phantom at 24 different sites.

Operator safety during the acquisition of intraoral images with a handheld and portable X-ray device.

Objectives: The present study aims at investigating different radiation protection issues and dose values while acquiring intraoral images with a handheld X-ray device.

Methods: An Aribex NOMAD Pro 2™, a RANDO male head phantom, a consistency testing body, a PTW NOMEX Multimeter, and a PTW Farmer Ionization Chamber Type 30,010 were used to investigate: (1) dose area products; (2) the expansion of the control area (CA); (3) the scattering pattern and (4) the potential risk for operators of the X-ray device.

Results: Dose area products at different exposure times were distributed linearly with a high correlation factor (>0.

Influence of lead apron shielding on absorbed doses from cone-beam computed tomography.

The aim of the present work was to investigate absorbed and to calculate effective doses (EDs) in cone-beam computed tomography (CBCT). The study was conducted using examination protocols with and without lead apron shielding. A full-body male RANDO® phantom was loaded with 110 GR200A thermoluminescence dosemeter chips at 55 different sites and set up in two different CBCT systems (CS 9500®, ProMax® 3D).