Cone Beam Computed Tomography
Mostrando 25-36 de 183 artigos, teses e dissertações.
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25. Method to Determine the Root Canal Anatomic Dimension by using a New Cone-Beam Computed Tomography Software
Resumo Este estudo discute um método para determinar a dimensão anatômica do canal radicular usando o software e-Vol DX. A metodologia consiste em inicialmente estabelecer as posições corretas que serão medidas, definir o ponto na borda da estrutura anatômica e ajustar a posição intermediária na escala de cinza na imagem em tomografia computadoriza
Braz. Dent. J.. Publicado em: 2019-02
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26. Root perforations: a review of diagnosis, prognosis and materials
Abstract: Root perforation results in the communication between root canal walls and periodontal space (external tooth surface). It is commonly caused by an operative procedural accident or pathological alteration (such as extensive dental caries, and external or internal inflammatory root resorption). Different factors may predispose to this communication,
Braz. oral res.. Publicado em: 18/10/2018
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27. Volumetric reconstruction and determination of minimum crosssectional area of the pharynx in patients with cleft lip and palate: comparison between two different softwares
Abstract Objective: The aim of this study was to assess the accuracy of volumetric reconstruction of the pharynx by comparing the volume and minimum crosssectional area (mCSA) determined with open-source applications (ITK-Snap, www.itksnap.org ; SlicerCMF) and commercial software (Dolphin3D, 11.8, Dolphin Imaging & Management Solutions, Chatsworth, CA, USA)
J. Appl. Oral Sci.. Publicado em: 04/10/2018
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28. Hyaluronic acid accelerates bone repair in human dental sockets: a randomized triple-blind clinical trial
Abstract This study evaluated the effects of hyaluronic acid (HA) on bone repair of human dental sockets. Thirty-two lower first premolars were extracted from 16 patients (2 per patient) for orthodontic reasons. Following the extractions, one socket was randomly filled with 1% HA gel, while the other was allowed to naturally fill with blood clot. After 30 an
Braz. oral res.. Publicado em: 13/09/2018
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29. Maxillary sinus floor pneumatization and alveolar ridge resorption after tooth loss: a cross-sectional study
Abstract This is a cross-sectional study that aimed to estimate maxillary sinus floor (MSF) pneumatization in single missing tooth of posterior maxilla, by using cone-beam computed tomography (CBCT). CBCT images were analyzed bilaterally and divided into 2 groups: edentulous site (EdS) - edentulous single region of upper second premolar, first or second mola
Braz. oral res.. Publicado em: 06/08/2018
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30. Tomographic late evaluation of xenogeneic bone grafts in sockets of impacted third molars
Abstract It is necessary to preserve height and thickness of the alveolar bone to facilitate rehabilitation with osteointegratable implants or simply to maintain bone integrity after extraction. Biomaterials associated with resorbable or non-resorbable membranes, when placed in the region of the socket, may contribute to avoid this unwanted reabsorption. Ob
J. Appl. Oral Sci.. Publicado em: 16/07/2018
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31. Bioactive glass added to autogenous bone graft in maxillary sinus augmentation: a prospective histomorphometric, immunohistochemical, and bone graft resorption assessment
Abstract Objective The aim of this study was to compare the bone resorption rate, histomorphometry and immunohistochemical findings of bioactive glass (Biogran; Biomet, Warsaw, IN, USA) mixed with autogenous bone grafts (1:1) and autogenous bone graft isolate in maxillary sinus elevation surgery. Material and Methods A total of 9 maxillary sinuses were gra
J. Appl. Oral Sci.. Publicado em: 11/06/2018
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32. Comparing osteogenic effects between concentrated growth factors and the acellular dermal matrix
Abstract Concentrated growth factor (CGF) is an autogenuous product that contains highly concentrated number of platelets and can be derived from venous blood by selective centrifugation. It has been speculated that local growth factors in human platelets (insulinlike growth factor, IGF; transforming growth factor, TGF-b; platelet derived growth factor, PDGF
Braz. oral res.. Publicado em: 03/05/2018
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33. Root Morphology and Number of Canals in Mandibular Central and Lateral Incisors Using Cone Beam Computed Tomography
Resumo A maioria das falhas no tratamento endodôntico dos incisivos mandibulares é devida à presença de um canal perdido, especificamente do lingual. Esta investigação teve como objetivo analisar a morfologia radicular e o número de canais nos incisivos inferiores utilizando a tomografia computadorizada de feixe cônico (TCFC). Duzentos e sete pacient
Braz. Dent. J.. Publicado em: 2018-05
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34. Absorbed doses in salivary and thyroid glands from panoramic radiography and cone beam computed tomography
Abstract Introduction: Panoramic radiography and cone beam computed tomography (CBCT) are very important in the diagnosis of oral diseases, however patients are exposed to the risk of ionizing radiation. This paper describes our study aimed at comparing absorbed doses in the salivary glands and thyroid due to panoramic radiography and CBCT and estimating ra
Res. Biomed. Eng.. Publicado em: 15/02/2018
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35. Cemento-Osseous Dysplasias: Imaging Features Based on Cone Beam Computed Tomography Scans
Resumo Os exames por imagem têm papel importante no diagnóstico da displasia cemento-óssea (DCO). A tomografia computadorizada por feixe cônico (TCFC) se destaca por permitir a avaliação tridimensional da imagem. O objetivo neste estudo foi avaliar a prevalência de casos diagnosticados como DCO nos exames de TCFC, bem como identificar as principais ca
Braz. Dent. J.. Publicado em: 2018-02
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36. Relationship between mandibular symphysis dimensions and mandibular anterior alveolar bone thickness as assessed with cone-beam computed tomography
RESUMO Objetivo: o objetivo desse artigo foi avaliar a correlação entre as dimensões da sínfise e a espessura do osso alveolar (EOA) na região anterior da mandíbula. Métodos: imagens de tomografia computadorizada de feixe cônico (TCFC) de 51 pacientes foram selecionadas e medidas. As EOAs vestibular e lingual dos dentes anteroinferiores foram medi
Dental Press J. Orthod.. Publicado em: 2018-01