Results 51 to 60 of about 90,751 (167)
口腔疾病防治, 2016 Objective To analyze the tooth movement distance and root resorption in rats under different orthodontic forces, to explore the effect of orthodontic force on the root resorption during orthodontic tooth movement.Methods 64 male Sprague Dawley (SD) rats ...
WU Chang-jing
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Study on Virtual Gear Hobbing Simulation and Gear Tooth Surface Accuracy [PDF]
arXiv, 2023 This paper presents a digital simulation method for the hobbing process of cylindrical gears. Based on the gear generation principle, taking the professional software as the tool, the problem of virtual hobbing simulation on involute helical gears was studied, and the virtual hobbing simulation of hobbing on the whole gear was completed by using macros
arxiv
CTooth: A Fully Annotated 3D Dataset and Benchmark for Tooth Volume Segmentation on Cone Beam Computed Tomography Images [PDF]
arXiv, 2022 3D tooth segmentation is a prerequisite for computer-aided dental diagnosis and treatment. However, segmenting all tooth regions manually is subjective and time-consuming. Recently, deep learning-based segmentation methods produce convincing results and reduce manual annotation efforts, but it requires a large quantity of ground truth for training.
arxiv
Jixie chuandong, 2013 Based on finite element optimization analysis principle and using of characteristics of NURBS spline curve,through the shape optimization of standard involute gear tooth root part operated in Pro/E and ANSYS workbench software,a new realization method of
董新华, 马勇, 柳强
doaj
Erbil Dental Journal, 2023 Background and objective: With FPMs between the ages of 6 and 12, the detection of open apex in some children at age 12 underlines the necessity for investigation prior to treating a deep carious lesion.Pulpal involvement was considered before the ...
Yara Ismail Ameen +2 more
doaj
A new method for determining the filled point of the tooth by Bit-Plane Algorithm [PDF]
arXiv, 2019 Up to now, researchers have applied segmentation techniques in their studies on teeth images, with construction on tooth root length and depth. In this paper, a new approach to the exact identification of the filled points of the tooth is proposed. In this method, the filled teeth are detection by applying the Bit-Plane algorithm on the OPG images. The
arxiv
Management of periodontally compromised mandibular molar with Hemisectioning: A case report
Journal of International Clinical Dental Research Organization, 2014 Introduction: Hemisection involves sectioning of a periodontally involved mandibular molar so as to remove the involved root and save the remaining tooth.
Bandu Napte, Srinidhi Surya Raghavendra
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Fate of HERS during tooth root development
Developmental Biology, 2009 Tooth root development begins after the completion of crown formation in mammals. Previous studies have shown that Hertwig's epithelial root sheath (HERS) plays an important role in root development, but the fate of HERS has remained unknown. In order to investigate the morphological fate and analyze the dynamic movement of HERS cells in vivo, we ...
Yang Chai +3 more
openaire +3 more sources
BMC Oral HealthBackground Placement of interradicular orthodontic miniscrews poses a potential risk of root damage, including superficial root contact and root fracture.
Hyojin Kim +3 more
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A Study on the Effect of Gear Hobbing Process Parameters on the Residual Stress of the Tooth Root
Applied SciencesThe root residual stress during gear machining has a significant impact on the bending fatigue performance of the gear. The process parameters of gear hobbing (hob speed, axial feed speed, and radial cutting depth) directly affect the residual stress of ...
Yazhou Wang +4 more
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