Results 31 to 40 of about 1,196,714 (201)
Geometric Modeling and Fatigue Strength Simulation of Bevel Gears with Variable Radius Tooth Root
Jixie chuandong, 2022 Aiming at the problem that most of the teeth root of straight bevel gears adopt fixed radius fillet transition with 0.3 times of modulus， which tends to to cause large bending stress on the tooth root and reduce the service life of bevel gears， a design ...
Haohan Zeng +5 more
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Posts and the root-filled tooth [PDF]
British Dental Journal, 2005 It is clear that teeth often require significant reconstruction following root canal treatment. It is also evident that there is an enormous variety of ways that can be used to achieve this. Although there is some debate about the relative contributions of the root filling and coronal restoration to endodontic success, it is agreed that the best ...
openaire +2 more sources
Gear tooth rooth stress and fillet radii dependence [PDF]
FME Transactions, 2014 Tooth root form and fillet radius have a great influence on gear tooth root strength that is one of the primary subjects of this paper. Special attention is given to analysis on impact of gear tooth fillet radius at the critical cross section on stress ...
Ristić Daniela, Kramberger Janez
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Dental Hypotheses, 2014 Introduction: Trauma, altered tooth germ position and delayed tooth eruption have been hypothesized as possible causes of tooth root dilacerations and flexion, however these anatomical variations appear more commonly associated with posterior teeth and ...
Richard G Standerwick
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Choukroun’s Autologous Platelet Concentrate Used in Immature Necrotic Tooth during Revascularization: A Clinical and Radiological Report of a Case [PDF]
Journal of South Asian Association of Pediatric Dentistry, 2023 Aim: To discuss the management of an immature necrotic permanent tooth and the clinical and radiological outcome by utilizing platelet-rich fibrin (PRF).
Umapathy Thimmegowda +4 more
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Potential of oil-lubricated cylindrical plastic gears
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018 Bending strength of injection molded polyacetal test gears is investigated in back-to-back testing using oil-lubrication. To validate state of the art calculation methods, tooth geometries with a variable number of teeth are investigated, maintaining a ...
Christian HASL +4 more
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International Journal of Implant Dentistry, 2020 Background Radiographs are integral in evaluating implant space and inter-root distance. The purpose of this report is to introduce a method for evaluating the 3D root position with minimal radiation using a 3D tooth model composed of an intraoral ...
Kyungmin Lee, Gyu-Hyoung Lee
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Jixie chuandong, 2022 Tooth root fatigue crack is one of the most common failure forms in the service process of gear transmission system， and it will threaten the safety of gear transmission systems or even the whole equipment.
Zaigang Chen, Yunsheng Zhi, Jieyu Ning
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Advances in Mechanical Engineering, 2015 The research of the load distributions and bending stresses with helix deviations in power transmission systems is important for effectively improving gear load capacity. The equations of tooth surface with helix slope and form deviation were established
Tao Luo +3 more
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Signaling Pathways Critical for Tooth Root Formation
, 2017 Tooth is made of an enamel-covered crown and a cementum-covered root. Studies on crown dentin formation have been a major focus in tooth development for several decades.
J. Wang, J.Q. Feng
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