Matheus L. Oliveira
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View article: Digital Dental Radiology and Diagnostics—From <scp>2D</scp> to <scp>3D</scp>
Digital Dental Radiology and Diagnostics—From <span>2D</span> to <span>3D</span> Open
Digital dental radiology has evolved significantly from traditional two‐dimensional (2D) imaging to advanced three‐dimensional (3D) modalities such as cone‐beam computed tomography (CBCT). This progression has overcome many limitations of …
View article: Artificial intelligence-based CBCT segmentation in the presence of metallic artefacts for 3D virtual orofacial patient generation
Artificial intelligence-based CBCT segmentation in the presence of metallic artefacts for 3D virtual orofacial patient generation Open
AI-based CBCT segmentation can reliably generate 3D models of the mandible and teeth, even in the presence of zirconia crowns. This suggests a promising alternative to intraoral scanning in specific clinical scenarios, provided that expert…
View article: Dimensional Changes After Different Alveolar Ridge Preservation Techniques for Posterior Region: A Randomised Controlled Clinical Trial
Dimensional Changes After Different Alveolar Ridge Preservation Techniques for Posterior Region: A Randomised Controlled Clinical Trial Open
Aim Alveolar ridge preservation (ARP) after tooth extraction aims to maintain ridge dimensions for future implant placement. However, limited evidence is available for posterior sites. We evaluated the dimensional changes in posterior extr…
View article: Influence of a portable X-ray device in the diagnosis of proximal caries lesions
Influence of a portable X-ray device in the diagnosis of proximal caries lesions Open
This study aimed to evaluate the influence of a portable X-ray device on the diagnosis of proximal caries lesions. For that, radiographs of 40 human teeth with white spots or color changes in enamel and/or dentin were acquired using the Ea…
View article: Development of a carrier device for dental-dedicated magnetic resonance imaging
Development of a carrier device for dental-dedicated magnetic resonance imaging Open
The proposed carrier device represents a promising method for embedding dental materials and other specimens, thereby facilitating the evaluation of their behaviour in ddMRI.
View article: Sex estimation accuracy through metric evaluation of dental root: a cone-beam computed tomography-based study
Sex estimation accuracy through metric evaluation of dental root: a cone-beam computed tomography-based study Open
The degree of sexual dimorphism exhibited by teeth plays a crucial role in sex estimation, particularly as they are frequently found well-preserved. This study aimed to assess the presence of sexual dimorphism in the roots of upper lateral…
View article: CORPO ESTRANHO ASSOCIADO A HIPERTROFIA MUSCULAR INTESTINAL IDIOPÁTICA EM FELINO: RELATO DE CASO
CORPO ESTRANHO ASSOCIADO A HIPERTROFIA MUSCULAR INTESTINAL IDIOPÁTICA EM FELINO: RELATO DE CASO Open
View article: Intraoral digital radiography: A comprehensive report on the technical specifications of current and historical systems
Intraoral digital radiography: A comprehensive report on the technical specifications of current and historical systems Open
This report identified 150 digital radiographic systems, revealing wide variability in technical specifications and a lack of standardised reporting protocols. The comprehensive summary and recommendations for consistent documentation prov…
View article: A comparative investigation of the quality of radiographs produced by portable handheld and fixed x-ray units
A comparative investigation of the quality of radiographs produced by portable handheld and fixed x-ray units Open
To evaluate the impact of handheld portable intraoral diagnostic X-ray equipment on radiographic quality and to compare their radiographs with radiographs obtained using fixed intraoral X-ray equipment. For brightness, noise, and uniformit…
View article: Evaluation of Exomass‐Related Artefacts Caused by Dental Implants of Different Materials in Cone‐Beam Computed Tomography Scans: An Ex Vivo Study
Evaluation of Exomass‐Related Artefacts Caused by Dental Implants of Different Materials in Cone‐Beam Computed Tomography Scans: An Ex Vivo Study Open
Objectives To evaluate the influence of different dental implant materials within the exomass on the image quality in cone‐beam computed tomography (CBCT). Material and Methods Five pig jaws were scanned using four CBCT devices, first with…
View article: Development and evaluation of a deep learning model to reduce exomass-related metal artefacts in cone-beam CT: an <i>ex vivo</i> study using porcine mandibles
Development and evaluation of a deep learning model to reduce exomass-related metal artefacts in cone-beam CT: an <i>ex vivo</i> study using porcine mandibles Open
Objectives To develop and evaluate a deep learning (DL) model to reduce metal artefacts originating from the exomass in cone-beam CT (CBCT) of the jaws. Methods Five porcine mandibles, each featuring six tubes filled with a radiopaque solu…
View article: Gray values and noise behavior of cone-beam computed tomography machines—an <i>in vitro</i> study
Gray values and noise behavior of cone-beam computed tomography machines—an <i>in vitro</i> study Open
Objectives To systematically evaluate the mean gray values (MGVs) and noise provided by bone and soft tissue equivalent materials and air imaged with varied acquisition parameters in 9 cone-beam computed tomography (CBCT) machines. Methods…
View article: Performance of a Generative Pre‐Trained Transformer in Generating Scientific Abstracts in Dentistry: A Comparative Observational Study
Performance of a Generative Pre‐Trained Transformer in Generating Scientific Abstracts in Dentistry: A Comparative Observational Study Open
Objectives To evaluate the performance of a Generative Pre‐trained Transformer (GPT) in generating scientific abstracts in dentistry. Methods Ten scientific articles in dental radiology had their original abstracts collected, while another…
View article: Guia Prático da Pedagogia Lúdica: Dicas e Atividades para Pais e Professores
Guia Prático da Pedagogia Lúdica: Dicas e Atividades para Pais e Professores Open
View article: Can human sex be estimated based on the dimensions of the maxillary sinuses? A systematic review of the literature on cone-beam and multi-slice computed tomography
Can human sex be estimated based on the dimensions of the maxillary sinuses? A systematic review of the literature on cone-beam and multi-slice computed tomography Open
CRD42020161922.
View article: Performance of a commercially available Generative Pre-trained Transformer (GPT) in describing radiolucent lesions in panoramic radiographs and establishing differential diagnoses
Performance of a commercially available Generative Pre-trained Transformer (GPT) in describing radiolucent lesions in panoramic radiographs and establishing differential diagnoses Open
View article: Feasibility of frozen soft tissues to simulate fresh soft tissue conditions in cone beam CT scans
Feasibility of frozen soft tissues to simulate fresh soft tissue conditions in cone beam CT scans Open
Objectives To evaluate the feasibility of frozen soft tissues in simulating fresh soft tissues of pig mandibles using cone beam CT (CBCT). Methods Two fresh pig mandibles with soft tissues containing 2 tubes filled with a radiopaque homoge…
View article: Modifying the head’s spatial orientation reduces cone beam CT artifacts adjacent to dental implants: a laboratory study
Modifying the head’s spatial orientation reduces cone beam CT artifacts adjacent to dental implants: a laboratory study Open
Objectives: To evaluate image artifacts in the vicinity of dental implants in cone-beam computed tomography (CBCT) obtained with different spatial orientations, tube current levels, and metal artifact reduction algorithm (MAR) conditions. …
View article: Can Digital Enhancement Restore the Image Quality of Phosphor Plate-Based Radiographs Partially Damaged by Ambient Light?
Can Digital Enhancement Restore the Image Quality of Phosphor Plate-Based Radiographs Partially Damaged by Ambient Light? Open
View article: Potential impact of metal crowns at varying distances from a carious lesion on its detection on cone-beam computed tomography scans with several protocols
Potential impact of metal crowns at varying distances from a carious lesion on its detection on cone-beam computed tomography scans with several protocols Open
CBCT-based caries detection was not influenced by the presence of a metal crown, variations in milliamperage, or MAR activation. However, the diagnostic accuracy was low and was further diminished for surfaces near a crown. Consequently, C…
View article: Comparison of objective radiograph quality between radiographs obtained with wall-mounted and handheld X-ray devices
Comparison of objective radiograph quality between radiographs obtained with wall-mounted and handheld X-ray devices Open
Radiographs obtained using a handheld X-ray device exhibit lower theoretical image quality than those acquired with a wall-mounted device.
View article: Impact of the spatial orientation of the patient’s head, metal artifact reduction, and tube current on cone-beam computed tomography artifact expression adjacent to a dental implant: A laboratory study using a simulated surgical guide
Impact of the spatial orientation of the patient’s head, metal artifact reduction, and tube current on cone-beam computed tomography artifact expression adjacent to a dental implant: A laboratory study using a simulated surgical guide Open
Modifying the spatial orientation of the head increased brightness and reduced spatial orientation noise in adjacent regions of a dental implant, with no influence from the tube current level and MAR.
View article: Profile of deaths and hospitalizations of elderly patients affected by stroke in Northeastern Brazil: analysis of a 12-year epidemiological overview
Profile of deaths and hospitalizations of elderly patients affected by stroke in Northeastern Brazil: analysis of a 12-year epidemiological overview Open
Background: Stroke is an acute illness caused mainly by an abrupt rupture of the cerebral vasculature or by a blockage of blood vessels (hemorrhagic and ischemic stroke, respectively), leading to tissue damage to this organ. The incidence …
View article: The joint increase in deaths and hospitalizations of patients affected by malignant neoplasm of the brain in Northeastern Brazil: analysis of a 12-year epidemiological overview
The joint increase in deaths and hospitalizations of patients affected by malignant neoplasm of the brain in Northeastern Brazil: analysis of a 12-year epidemiological overview Open
Background: Malignant brain neoplasms (MBN), also known as brain cancers, represent the eighth most prevalent type of tumor in adults over forty years of age, and metastases are closely related to other very prevalent neoplasms, such as br…
View article: Stroke prevention by combining medical education in the context of primary health care and social media: an extension project
Stroke prevention by combining medical education in the context of primary health care and social media: an extension project Open
Background: Stroke is the second leading cause of death worldwide and a major cause of disabilities. Today, it is known that five risk factors account for more than 80% of the global risk for developing a stroke, whether ischemic or intrac…
View article: High-density objects in exomass affect the volume of high-density objects inside the field of view
High-density objects in exomass affect the volume of high-density objects inside the field of view Open
Objectives To evaluate the effect of the presence and the number of high-density objects in the exomass on the volume of a high-density object in cone-beam CT (CBCT). Methods Cylinders of cobalt-chromium (Co-Cr), titanium (Ti), and zirconi…
View article: ChatGPT: a tool for scientific writing or a threat to integrity?
ChatGPT: a tool for scientific writing or a threat to integrity? Open
The use of ChatGPT as a tool for writing and knowledge integration raises concerns about the potential for its use to replace critical thinking and academic writing skills. While ChatGPT can assist in generating text and suggesting appropr…
View article: DICOM file format has better radiographic image quality than other file formats: an objective study
DICOM file format has better radiographic image quality than other file formats: an objective study Open
This study aimed to assess the influence of the file format on the image quality parameters (image noise, brightness, and uniformity) of periapical radiographs acquired with different digital systems. Radiographic images of an acrylic phan…
View article: Ambient light exposure of photostimulable phosphor plates: is there a safe limit for acceptable image quality?
Ambient light exposure of photostimulable phosphor plates: is there a safe limit for acceptable image quality? Open
Objectives: To subjectively assess radiographs obtained with photostimulable phosphor (PSP) plates exposed to clinical levels of ambient light prior to read-out to potentially set a safe limit for acceptable image quality. Methods and mate…
View article: Does the shape of the field-of-view influence the magnitude of artefacts from high-density materials in cone-beam computed tomography?
Does the shape of the field-of-view influence the magnitude of artefacts from high-density materials in cone-beam computed tomography? Open
Objective: To compare cylindrical and convex triangular field-of-views (FOVs) concerning the magnitude of artefacts from high-density materials in cone-beam CT (CBCT). Methods and materials: Cylinders of amalgam, chromium-cobalt, titanium,…