نتایج جستجو برای: tooth anatomy
تعداد نتایج: 180380 فیلتر نتایج به سال:
Introduction: Despite the abundant studies on teaching anatomy using cadaver, a few studies have documented the use of surface anatomy. Also, the majority of articles concerning human anatomy teaching have focused on medical student education and less attention has been paid to teaching anatomy to students of allied health sciences. Therefore, this study aimed to investigate the effect of teach...
Background and Objectives: The anatomy of maxillary molars is very complicated and root canal therapy for this specific group of teeth is a major challenge for dentists. Given the limitations of conventional techniques for finding the second mesiobuccal canal (MB-2) and anatomical differences observed in different ethnicities, this study aimed to determine the anatomy of mesiobuccal root canal ...
BACKGROUND AND AIMS Visualization of the internal and external root canal morphology is very important for a successful endodontic treatment; however, it seems to be difficult considering the small size of the tooth and the complexity of the root canal system. Film-based or digital conventional radiographic techniques as well as cone beam computed tomography provide limited information on the d...
Introduction: Students are the main source of information regarding teaching quality and effectiveness. This study was designed to investigate the view points of Rafsanjan Medical University students at clinical settings towards the role of anatomy courses in achieving clinical objectives. Methods: A descriptive study was performed in the year 2005 in which 97 clerkship and internship students...
Distinguishing phylogenetic signal from homoplasy (shared similarities among taxa that do not arise by common ancestry) is an implicit goal of any phylogenetic study. Large amounts of homoplasy can interfere with accurate tree inference, and it is expected that common measures of clade support, including bootstrap proportions and Bayesian posterior probabilities, should also be impacted to some...
this paper reports multidisciplinary treatment of a dental trauma case to achieve a favorable prognosis. a healthy 14-year-old girl reported avulsion of teeth 11 and 21 which had occurred three months earlier. the initial treatment consisting of replantation with a semi-rigid splint was performed in hospital. at presentation, the patient was still using the semi-rigid splint. the clinical exami...
Background and purpose: Pulp stones are calcified masses in the pulp chamber or root canals. Cone-beam computed tomography (CBCT) can identify crown and root anatomy and also detect calcifications which may help to achieve a better diagnosis. The goal of this study was to determine the frequency of pulp stones in CBCT images. Materials and methods: In this cross-sectional study, 500 CBCT image...
Though the dinosaur Thescelosaurus neglectus was first described in 1913 and is known from the relatively fossiliferous Lance and Hell Creek formations in the Western Interior Basin of North America, the cranial anatomy of this species remains poorly understood. The only cranial material confidently referred to this species are three fragmentary bones preserved with the paratype, hindering atte...
Background: Sodium hypochlorite produces free oxygen and radicals that cause damage to dentin collagen. Combination with thiosulfate the aim of improving root canal hygiene restoring oxidizing effect on surface.The apical third is most difficult part, due its narrower anatomy, curvature frequent branching canal. Method: The study used 30 specimens which were divided into 3 groups, group I was i...
An essential prerequisite to perform any dental procedure is a clear understanding and knowledge of anatomy its possible variations. The root canal system characterized for complex morphology, which varies among populations, individuals in the same population even person. aim this study was evaluate by CBCT number, curvature, length roots first second maxillary premolars Mexican population. In ...
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