نتایج جستجو برای: beam computed tomography canal instrumentation

تعداد نتایج: 412530  

Journal: :journal of dental research, dental clinics, dental prospects 0
arash dabbaghi nafiseh nikkerdar oral and maxillofacial radiology department, dental school, kermanshah university of medical sciences soheyla bayati amin golshah orthodontics department, dental school, kermanshah university of medical sciences

odontogenic myxoma (om) is an infiltrative benign bone tumor that occurs almost exclusively in the facial skeleton. the radiographic characteristics of odontogenic myxoma may produce several patterns, making diagnosis difficult. cone-beam computed tomography (cbct) may prove extremely useful in clarifying the intraosseous extent of the tumor and its effects on surrounding structures. here, we r...

Journal: :iranian endodontic journal 0
ali soleymani nafiseh namaryan ehsan moudi ali gholinia

introduction: the present study was conducted to assess the morphology of mandibular canines using cone-beam computed tomography (cbct) in a north iranian population. methods and materials: for the morphological assessment of mandibular canines, 150 cbct images taken from patients for different reasons were used. the mandibular canines were examined in sagittal, coronal and axial dimensions. th...

Journal: :journal of dentistry, tehran university of medical sciences 0
leila khojastepour department of oral and maxillofacial radiology, school of dentistry, shiraz university of medial science, shiraz, iran shirin kolahi department of oral and maxillofacial radiology, school of dentistry, shiraz university of medial science, shiraz, iran nazi panahi department of oral and maxillofacial radiology, school of dentistry, shiraz university of medial science, shiraz, iran abdolaziz haghnegahdar department of oral and maxillofacial radiology, school of dentistry, shiraz university of medial science, shiraz, iran

objectives: differential diagnosis of bifid mandibular condyle (bmc) is important, since it may play a role in temporomandibular joint (tmj) dysfunctions and joint symptoms. in addition, radiographic appearance of bmc may mimic tumors and/or fractures. the aim of this study was to evaluate the prevalence and orientation of bmc based on cone beam computed tomography (cbct) scans.   materials and...

Journal: :journal of dentistry, tehran university of medical sciences 0
mehrdad panjnoush yasaman kheirandish pooneh mohseni kashani hoorieh bashizadeh fakhar farzan younesi maysa mallahi mallahi

objectives: the aim of this study was to assess the effect of tube current, kilovoltage peak (kvp), metal type, and the position of metal objects on metal artifacts in cone-beam computed tomography (cbct) images. materials and methods: titanium and cobalt-chromium rods were fabricated and placed in a dry human mandible. samples were scanned using a promax 3d cbct unit with different milli-amper...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
zahra dalili department of maxillofacial radiology, guilan university of medical sciences, dental school, rasht, iran jalil khademi department of orthodontics, guilan university of medical sciences, dental school, rasht, iran. faegheh gholinia , department of orthodontics, guilan university of medical sciences, dental school, rasht, iran. nafiseh khanjani department of maxillofacial radiology, guilan university of medical sciences, dental school, rasht, iran

introduction: due to the complexity of facial asy-mmetry, the diagnosis of different aspects of asymmetry via conventional radiographs is not precise. in this study, we investigated findings of facial asymmetry by using cone- beam computed tomography (cbct) images. materials and methods: in this descriptive study, we evaluated cbct findings of 18 patients i.e. a group of 14 females and 4 males ...

ژورنال: :مجله علمی دانشگاه علوم پزشکی گرگان 0
فریدا عابسی abesi f احسان موعودی moudi e بابل، میدان ولایت، خیابان فلسطین، صندوق پستی 853 ، تلفن 32291408-011 ، نمابر 22391093 سینا حقانی فر haghanifar s مصطفی نجفی najafi m

زمینه و هدف : ناحیه قدامی فک پایین محل انجام بسیاری از اعمال جراحی فک و دندان است. از طرفی این ناحیه محل شاخه ثنایایی عصب آلوئولار تحتانی است. این مطالعه به منظور تعیین میزان رویت و پیشروی شاخه ثنایایی عصب آلوئولار تحتانی در تصاویر cone beam computed tomography انجام شد. روش بررسی : در این مطالعه توصیفی تحلیلی 105 تصویر cbct از نظر وجود یا عدم وجود شاخه ثنایایی و میزان پیشروی عصب آلوئولار تحتان...

2015
Orlando Aguirre Guedes Marcus Vinícius Corrêa da Costa Maura Cristiane Gonçales Orçati Dorilêo Helder Fernandes de Oliveira Fábio Luis Miranda Pedro Matheus Coelho Bandeca Álvaro Henrique Borges

BACKGROUND This study investigated procedural errors made during root canal preparation with nickel-titanium (NiTi) instruments, using cone beam computed tomography (CBCT) imaging method. MATERIALS AND METHODS A total of 100 human mandibular molars were divided into five groups (n = 20) according to the NiTi system used for root canal preparation: Group 1 - BioRaCe, Group 2 - K3, Group 3 - Pr...

Journal: :dental research journal 0
zahra dalili kajan javad kia safa motevasseli saman rokh rezaian

background: implant placement plays a vital role in oral rehabilitation following loss of the incisors. thus, having knowledge of anatomical variations of adjacent neurovascular structures especially the nasopalatine canal (npc) is essential. due to the lack of basic information in iran about the morphology of this canal and the probability of its variety in different populations, this study wa...

Journal: :journal of dental materials and techniques 0
ali ali bagherpour dental research center, department of oral and maxillofacial radiology, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) maryam maryam mohammadzadeh rezaei medical physics research center, faculty of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) shahrokh shahrokh nasseri medical physics research center, faculty of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

precise localization of the third molars in relation to the inferior alveolar nerve canal is critical from a clinical point of view and strongly affects the surgical treatment outcome. recently, by using three-dimensional modeling software, the relationship of third molar root apices and inferior alveolar nerve canal can be better understood. in this study, the spatial relationship of two surgi...

Journal: :iranian endodontic journal 0
hadi mokhtari mahdi niknami vahid zand

root canal anatomy diversity and aberrations are common especially in permanent dentition. a thorough understanding of the basic root canal anatomy and its diversities are necessary for successful endodontic treatment. mandibular second premolars are usually single-rooted and have one root canal. incidence of three separate root canals in this tooth is quite rare and taurodontism with three sep...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید