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Research paper thumbnail of Hand-held dental X-ray device: Attention to correct use

Imaging Science in Dentistry

Research paper thumbnail of Avaliação da prevalência de terceiro molar inferior em íntima relação com o canal mandibular por meio de tomografia computadorizada de feixe cônico: estudo retrospectivo transversal

Revista Odontológica do Brasil Central

Objetivo: A proposta do presente estudo foi avaliar, por meio de tomografia computadorizada de fe... more Objetivo: A proposta do presente estudo foi avaliar, por meio de tomografia computadorizada de feixe cônico (TCFC), a prevalência de terceiros molares inferiores inclusos, ou semi-inclusos, em íntima relação com o canal mandibular (CM). Material e Método: Foram selecionados 91 exames de TCFC de indivíduos do sexo masculino (43) e feminino (48), de diferentes faixas etárias (19-70 anos), com indicação de exodontia de terceiros molares inferiores inclusos ou semi-inclusos. As imagens tomográficas foram selecionadas aleatoriamente seguindo os critérios de inclusão (terceiros molares inferiores inclusos, semi-inclusos e com indicação de exodontia) e exclusão (terceiros molares erupcionados, com rizogênese incompleta e sem indicação de exodontia). Os arquivos DICOM (Digital Imaging and Comunication in Medicine) foram importados no software Radiant DICOM Viewer para a avaliação da relação entre terceiros molares inferiores e CM através dos cortes multiplanares (coronal, axial e sagital). ...

Research paper thumbnail of Panoramic Radiography and Cone Beam Computed Tomography in the Early Diagnosis of Atheroma in the Extracranial and Intracranial Internal Carotid Artery: A Case Report

International journal of odontostomatology, Mar 1, 2019

Carotid stenosis usually results from the accumulation of atherosclerotic plaque in the carotid a... more Carotid stenosis usually results from the accumulation of atherosclerotic plaque in the carotid artery wall and is an important risk factor for ischemic cerebral vascular accident (CVA). This study describes the importance of diagnostic imaging exams used in dentistry for the early identification of atheroma plaques in the extracranial and intracranial internal carotid artery. A male patient was referred to a radiology clinic to perform panoramic radiography (PR) and a cone beam computed tomography (CBCT) to develop treatment plan options. In the PR and CBCT a radiopaque image, suggestive of atheroma in the extracranial internal carotid artery, was observed on the right side. The diagnosis was confirmed by color DOPPLER ultrasonography. In the CBCT, the presence of calcifications in the intracranial internal carotid artery was also observed. Diagnostic imaging exams used in dentistry allow the identification of asymptomatic individuals, facilitating early intervention and consequent reduction in the risk of ischemic CVA.

Research paper thumbnail of Panoramic Radiography and Cone Beam Computed Tomography in the Early Diagnosis of Atheroma in the Extracranial and Intracranial Internal Carotid Artery: A Case Report

International journal of odontostomatology, Mar 1, 2019

Carotid stenosis usually results from the accumulation of atherosclerotic plaque in the carotid a... more Carotid stenosis usually results from the accumulation of atherosclerotic plaque in the carotid artery wall and is an important risk factor for ischemic cerebral vascular accident (CVA). This study describes the importance of diagnostic imaging exams used in dentistry for the early identification of atheroma plaques in the extracranial and intracranial internal carotid artery. A male patient was referred to a radiology clinic to perform panoramic radiography (PR) and a cone beam computed tomography (CBCT) to develop treatment plan options. In the PR and CBCT a radiopaque image, suggestive of atheroma in the extracranial internal carotid artery, was observed on the right side. The diagnosis was confirmed by color DOPPLER ultrasonography. In the CBCT, the presence of calcifications in the intracranial internal carotid artery was also observed. Diagnostic imaging exams used in dentistry allow the identification of asymptomatic individuals, facilitating early intervention and consequent reduction in the risk of ischemic CVA.

Research paper thumbnail of Diagnóstico do Defeito Ósseo de Stafne por Meio de Tomografia Computadorizada de Feixe Cônico: Relato de Caso 5 PUBLICATIONS 0 CITATIONS SEE PROFILE

Research paper thumbnail of Identification of simulated periapical diseases using five different diagnostic imaging methods

Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial, 2016

r e v p o r t e s t o m a t o l m e d d e n t c i r m a x i l o f a c . 2 0 1 6;5 7(3):138-145 a ... more r e v p o r t e s t o m a t o l m e d d e n t c i r m a x i l o f a c . 2 0 1 6;5 7(3):138-145 a b s t r a c t Objectives: To assess and compare five diagnostic imaging methods used in the identification of periapical diseases, of different diameters, mechanically simulated.

Research paper thumbnail of Utilização de programas de pós‐processamento de imagens tomográficas na avaliação da articulação temporomandibular: descrição de técnica

Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial, 2015

r e v p o r t e s t o m a t o l m e d d e n t c i r m a x i l o f a c . 2 0 1 5;5 6(4):262-267

Research paper thumbnail of Avaliação dos níveis de pressão sonora emitidos pelo aparelho de ressonância magnética

Revista CEFAC, 2016

Purpose: to measure the sound pressure level emitted by the magnetic resonance equipment when wor... more Purpose: to measure the sound pressure level emitted by the magnetic resonance equipment when working and check the hearing sensations described by individuals submitted to this exam after it has been carried out. Methods: the measurement of noise was conducted during image formation in this exam, by means of an environmental noise sound pressure level meter and the application of a questionnaire for the purpose of checking the hearing sensations presented by those individuals after the exam has been carried out. This procedure was applied to sixty individuals submitted to a magnetic resonance exam of the cranium. Results: it was found that the mean sound pressure level presented while the exam was carried out was lower than the level of intensity considered being a risk for hearing lesions. However sensations like buzzing, anxiety, full hearing and relief after the end of the exam were mentioned by the individuals after it had been carried out. Conclusion: the use of ear protectors is pertinent as a preventive measure for controlling the level of noise that affects the individual's cochlea, thus minimizing the physical and psycho-social effects resulting from exposure to the noise.

Research paper thumbnail of Diagnóstico tomográfico e tratamento de sinusite odontogênica: Relato de caso

Arquivo Brasileiro De Odontologia, 2013

A mucosa do seio maxilar pode ser atingida por um processo infeccioso/inflamatório conhecido como... more A mucosa do seio maxilar pode ser atingida por um processo infeccioso/inflamatório conhecido como sinusite maxilar. Diversas alterações dentárias podem propiciar o acesso de microrganismos potencialmente patogênicos a essa importante cavidade pneumática, promovendo o surgimento e estabelecimento da sinusopatia maxilar. O fator dental pode estar envolvido em até 12% dos casos de sinusite maxilar. Uma anamnese detalhada, um exame físico cuidadoso e exames imaginológicos específicos se fazem de suma importância para um correto diagnóstico e, consequentemente, para a eleição da forma de tratamento mais conveniente. O objetivo deste presente trabalho é apresentar o caso de uma paciente sinusopata, devido à evolução de um processo carioso para uma periapicopatia, e a resolução da mesma, por meio de tratamento endodôntico e terapêutico.

Research paper thumbnail of Post-processing open-source software for the CBCT monitoring of periapical lesions healing following endodontic treatment: technical report of two cases

Objectives: To describe the use of open-source software for the post-processing of CBCT imaging f... more Objectives: To describe the use of open-source software for the post-processing of CBCT imaging for the assessment of periapical lesions development after endodontic treatment. Methods: CBCT scans were retrieved from endodontic records of two patients. Three-dimensional virtual models, voxel counting, volumetric measurement (mm 3) and mean intensity of the periapical lesion were performed with ITK-SNAP v. 3.0 software. Three-dimensional models of the lesions were aligned and overlapped through the MeshLab software, which performed an automatic recording of the anatomical structures, based on the best fit. Qualitative and quantitative analyses of the changes in lesions size after treatment were performed with the 3DMeshMetric software. Results: The ITK-SNAP v. 3.0 showed the smaller value corresponding to the voxel count and the volume of the lesion segmented in yellow, indicating reduction in volume of the lesion after the treatment. A higher value of the mean intensity of the segmented image in yellow was also observed, which suggested new bone formation. Colour mapping and " point value " tool allowed the visualization of the reduction of periapical lesions in several regions. Conclusions: Researchers and clinicians in the monitoring of endodontic periapical lesions have the opportunity to use open-source software.

Research paper thumbnail of Hand-held dental X-ray device: Attention to correct use

Imaging Science in Dentistry

Research paper thumbnail of Avaliação da prevalência de terceiro molar inferior em íntima relação com o canal mandibular por meio de tomografia computadorizada de feixe cônico: estudo retrospectivo transversal

Revista Odontológica do Brasil Central

Objetivo: A proposta do presente estudo foi avaliar, por meio de tomografia computadorizada de fe... more Objetivo: A proposta do presente estudo foi avaliar, por meio de tomografia computadorizada de feixe cônico (TCFC), a prevalência de terceiros molares inferiores inclusos, ou semi-inclusos, em íntima relação com o canal mandibular (CM). Material e Método: Foram selecionados 91 exames de TCFC de indivíduos do sexo masculino (43) e feminino (48), de diferentes faixas etárias (19-70 anos), com indicação de exodontia de terceiros molares inferiores inclusos ou semi-inclusos. As imagens tomográficas foram selecionadas aleatoriamente seguindo os critérios de inclusão (terceiros molares inferiores inclusos, semi-inclusos e com indicação de exodontia) e exclusão (terceiros molares erupcionados, com rizogênese incompleta e sem indicação de exodontia). Os arquivos DICOM (Digital Imaging and Comunication in Medicine) foram importados no software Radiant DICOM Viewer para a avaliação da relação entre terceiros molares inferiores e CM através dos cortes multiplanares (coronal, axial e sagital). ...

Research paper thumbnail of Panoramic Radiography and Cone Beam Computed Tomography in the Early Diagnosis of Atheroma in the Extracranial and Intracranial Internal Carotid Artery: A Case Report

International journal of odontostomatology, Mar 1, 2019

Carotid stenosis usually results from the accumulation of atherosclerotic plaque in the carotid a... more Carotid stenosis usually results from the accumulation of atherosclerotic plaque in the carotid artery wall and is an important risk factor for ischemic cerebral vascular accident (CVA). This study describes the importance of diagnostic imaging exams used in dentistry for the early identification of atheroma plaques in the extracranial and intracranial internal carotid artery. A male patient was referred to a radiology clinic to perform panoramic radiography (PR) and a cone beam computed tomography (CBCT) to develop treatment plan options. In the PR and CBCT a radiopaque image, suggestive of atheroma in the extracranial internal carotid artery, was observed on the right side. The diagnosis was confirmed by color DOPPLER ultrasonography. In the CBCT, the presence of calcifications in the intracranial internal carotid artery was also observed. Diagnostic imaging exams used in dentistry allow the identification of asymptomatic individuals, facilitating early intervention and consequent reduction in the risk of ischemic CVA.

Research paper thumbnail of Panoramic Radiography and Cone Beam Computed Tomography in the Early Diagnosis of Atheroma in the Extracranial and Intracranial Internal Carotid Artery: A Case Report

International journal of odontostomatology, Mar 1, 2019

Carotid stenosis usually results from the accumulation of atherosclerotic plaque in the carotid a... more Carotid stenosis usually results from the accumulation of atherosclerotic plaque in the carotid artery wall and is an important risk factor for ischemic cerebral vascular accident (CVA). This study describes the importance of diagnostic imaging exams used in dentistry for the early identification of atheroma plaques in the extracranial and intracranial internal carotid artery. A male patient was referred to a radiology clinic to perform panoramic radiography (PR) and a cone beam computed tomography (CBCT) to develop treatment plan options. In the PR and CBCT a radiopaque image, suggestive of atheroma in the extracranial internal carotid artery, was observed on the right side. The diagnosis was confirmed by color DOPPLER ultrasonography. In the CBCT, the presence of calcifications in the intracranial internal carotid artery was also observed. Diagnostic imaging exams used in dentistry allow the identification of asymptomatic individuals, facilitating early intervention and consequent reduction in the risk of ischemic CVA.

Research paper thumbnail of Diagnóstico do Defeito Ósseo de Stafne por Meio de Tomografia Computadorizada de Feixe Cônico: Relato de Caso 5 PUBLICATIONS 0 CITATIONS SEE PROFILE

Research paper thumbnail of Identification of simulated periapical diseases using five different diagnostic imaging methods

Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial, 2016

r e v p o r t e s t o m a t o l m e d d e n t c i r m a x i l o f a c . 2 0 1 6;5 7(3):138-145 a ... more r e v p o r t e s t o m a t o l m e d d e n t c i r m a x i l o f a c . 2 0 1 6;5 7(3):138-145 a b s t r a c t Objectives: To assess and compare five diagnostic imaging methods used in the identification of periapical diseases, of different diameters, mechanically simulated.

Research paper thumbnail of Utilização de programas de pós‐processamento de imagens tomográficas na avaliação da articulação temporomandibular: descrição de técnica

Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial, 2015

r e v p o r t e s t o m a t o l m e d d e n t c i r m a x i l o f a c . 2 0 1 5;5 6(4):262-267

Research paper thumbnail of Avaliação dos níveis de pressão sonora emitidos pelo aparelho de ressonância magnética

Revista CEFAC, 2016

Purpose: to measure the sound pressure level emitted by the magnetic resonance equipment when wor... more Purpose: to measure the sound pressure level emitted by the magnetic resonance equipment when working and check the hearing sensations described by individuals submitted to this exam after it has been carried out. Methods: the measurement of noise was conducted during image formation in this exam, by means of an environmental noise sound pressure level meter and the application of a questionnaire for the purpose of checking the hearing sensations presented by those individuals after the exam has been carried out. This procedure was applied to sixty individuals submitted to a magnetic resonance exam of the cranium. Results: it was found that the mean sound pressure level presented while the exam was carried out was lower than the level of intensity considered being a risk for hearing lesions. However sensations like buzzing, anxiety, full hearing and relief after the end of the exam were mentioned by the individuals after it had been carried out. Conclusion: the use of ear protectors is pertinent as a preventive measure for controlling the level of noise that affects the individual's cochlea, thus minimizing the physical and psycho-social effects resulting from exposure to the noise.

Research paper thumbnail of Diagnóstico tomográfico e tratamento de sinusite odontogênica: Relato de caso

Arquivo Brasileiro De Odontologia, 2013

A mucosa do seio maxilar pode ser atingida por um processo infeccioso/inflamatório conhecido como... more A mucosa do seio maxilar pode ser atingida por um processo infeccioso/inflamatório conhecido como sinusite maxilar. Diversas alterações dentárias podem propiciar o acesso de microrganismos potencialmente patogênicos a essa importante cavidade pneumática, promovendo o surgimento e estabelecimento da sinusopatia maxilar. O fator dental pode estar envolvido em até 12% dos casos de sinusite maxilar. Uma anamnese detalhada, um exame físico cuidadoso e exames imaginológicos específicos se fazem de suma importância para um correto diagnóstico e, consequentemente, para a eleição da forma de tratamento mais conveniente. O objetivo deste presente trabalho é apresentar o caso de uma paciente sinusopata, devido à evolução de um processo carioso para uma periapicopatia, e a resolução da mesma, por meio de tratamento endodôntico e terapêutico.

Research paper thumbnail of Post-processing open-source software for the CBCT monitoring of periapical lesions healing following endodontic treatment: technical report of two cases

Objectives: To describe the use of open-source software for the post-processing of CBCT imaging f... more Objectives: To describe the use of open-source software for the post-processing of CBCT imaging for the assessment of periapical lesions development after endodontic treatment. Methods: CBCT scans were retrieved from endodontic records of two patients. Three-dimensional virtual models, voxel counting, volumetric measurement (mm 3) and mean intensity of the periapical lesion were performed with ITK-SNAP v. 3.0 software. Three-dimensional models of the lesions were aligned and overlapped through the MeshLab software, which performed an automatic recording of the anatomical structures, based on the best fit. Qualitative and quantitative analyses of the changes in lesions size after treatment were performed with the 3DMeshMetric software. Results: The ITK-SNAP v. 3.0 showed the smaller value corresponding to the voxel count and the volume of the lesion segmented in yellow, indicating reduction in volume of the lesion after the treatment. A higher value of the mean intensity of the segmented image in yellow was also observed, which suggested new bone formation. Colour mapping and " point value " tool allowed the visualization of the reduction of periapical lesions in several regions. Conclusions: Researchers and clinicians in the monitoring of endodontic periapical lesions have the opportunity to use open-source software.