Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation [PDF]
, 2023 To determine the frequency of missed second mesiobuccal canals (MB2) and apical periodontitis in maxillary molars of a Chilean subpopulation using cone beam computed tomography (CBCT).
Cáceres, Carolina +3 more
core +1 more source
Lecture Notes on Computerized Tomography [PDF]
arXiv, 2023 These lecture notes give an introduction to the mathematics of computer(ized) tomography (CT). Treated are the imaging principle of X-ray tomography, the Radon transform as mathematical model for the measurement process and its properties, the ill-posedness of the underlying mathematical reconstruction problem and classical reconstruction techniques ...
arxiv
Nonsurgical Treatment of Type II Dens Invaginatus in a Maxillary Lateral Incisor Using Cone-Beam Computed Tomography [PDF]
, 2019 This is a clinical report of a case of Oehlers type II dens invagination in left maxillary lateral incisor. A 12-year-old female patient was referred to endodontic department of Islamic Azad University.
Afkar, Mohsen +2 more
core +2 more sources
Applications of cone beam computed tomography for a prosthodontist
The Journal of Indian Prosthodontic Society, 2016 Cone beam computed tomography (CBCT) is a medical imaging technique of X-ray computed tomography where the X-rays are divergent, forming a cone. CBCT systems have been designed for imaging hard tissues of the maxillofacial region. The increasing availability of this technology provides the dental clinician with an imaging modality capable of providing ...
Tatu Elenjickal Joy +3 more
openaire +4 more sources
Fundamentals of cone beam computed tomography for a prosthodontist
The Journal of Indian Prosthodontic Society, 2015 Cone beam computed tomography (CBCT, also referred to as C-arm computed tomography [CT], cone beam volume CT, or flat panel CT) is a medical imaging technique of X-ray CT where the X-rays are divergent, forming a cone.[1] CBCT systems have been designed for imaging hard tissues of the maxillofacial region.
George Puthenpurayil John +3 more
openaire +4 more sources
Comparison of Online 6 Degree-of-Freedom Image Registration of Varian TrueBeam Cone-Beam CT and BrainLab ExacTrac X-Ray for Intracranial Radiosurgery. [PDF]
, 2017 PURPOSE: The study was aimed to compare online 6 degree-of-freedom image registrations of TrueBeam cone-beam computed tomography and BrainLab ExacTrac X-ray imaging systems for intracranial radiosurgery.
Andrews, David W. +7 more
core +1 more source
Guided Endodontics in Nonsurgical Retreatment of a Mandibular First Molar: A New Approach and Case Report [PDF]
, 2020 This case report describes the use of the guided endodontics for a non-surgical endodontic retreatment of the mandibular molar. A 38-year-old female reported apical swelling and localized pain on the tooth #30, exacerbated when chewing hard food ...
Machado, Vinicius de Carvalho +6 more
core +2 more sources
Two-dimensional radiographs versus cone-beam computed tomography in planning mini-implant placement : a systematic review [PDF]
, 2022 This study aimed to compare two-dimensional radiographs and cone beam computed tomography (CBCT) images for mini-implant planning. A search was performed in PubMed, Embase, Web of Science, Cochrane Library and Google Scholar electronic databases ...
Caetano, Gabriela-Franco-da Rosa +4 more
core +1 more source
Life, 2021 Objective: The aim of this study was to evaluate whether stapes prostheses can be visualized with less metal artifacts and therefore more accurately on cone beam computed tomography in comparison to computed tomography imaging.
Valerie Dahm +7 more
doaj +1 more source
Inapproximability of Positive Semidefinite Permanents and Quantum State Tomography [PDF]
arXiv, 2021 Matrix permanents are hard to compute or even estimate in general. It had been previously suggested that the permanents of Positive Semidefinite (PSD) matrices may have efficient approximations. By relating PSD permanents to a task in quantum state tomography, we show that PSD permanents are NP-hard to approximate within a constant factor, and so admit
arxiv