Results 41 to 50 of about 1,575,820 (393)
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
doaj +1 more source
The use of Bioceramics as root-end filling materials in periradicular surgery: a literature review [PDF]
, 2018 Introduction: Periradicular surgery involves the placement of a root-end filling following root-end resection, to provide an apical seal to the root canal system. Historically several materials have been used in order to achieve this seal.
Abusrewil, Sumaya M. +2 more
core +1 more source
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
doaj +1 more source
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
doaj
Dynamic tooth loads and stressing for high contact ratio spur gears [PDF]
, 1983 An analysis and computer program were developed for calculating the dynamic gear tooth loading and root stressing for high contact ratio gearing (HCRG) as well as LCRG.
Cornell, R. W., Westervelt, W. W.
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Film and digital periapical radiographs for the measurement of apical root shortening [PDF]
, 2012 Objectives: The aim of this study was to compare the accuracy and agreement of scanned film and digital periapical radiographs for the measurement of apical root shortening.
Bearn, David R. +3 more
core +1 more source
Loss of Stat3 in Prx1+ Progenitors Impairs Molar Root Development
Advanced Biology, EarlyView.Stat3 critically regulates mandibular first molar and alveolar bone morphogenesis. Conditional ablation of Stat3 disrupts the osteogenic capacity of Prx1+ mesenchymal progenitors, as evidenced across in vivo and in vitro models. Abstract Signal Transducer and Activator of Transcription 3 (Stat3) acts as a central transcriptional modulator coordinating ...
Xin Feng +10 more
wiley +1 more source
An evaluation of mesiodentes: A retrospective study with cone-beam computed tomography [PDF]
, 2018 Background: The mesiodens, located in the palatal midline between the two maxillary central incisors, is the most common type of supernumerary tooth. The aim of this study was to evaluate the distribution of mesiodentes according to shape, position, and ...
Akay, Gülsün +2 more
core +2 more sources
DENTA: A Dual Enzymatic Nanoagent for Self‐Activating Tooth Whitening and Biofilm Disruption
Advanced Functional Materials, EarlyView.The nanoapatite with dual enzymes (DENTA) accumulates in dentinal tubules, reducing hypersensitivity caused by dental nerve exposure and facilitating continuous ROS generation through salivary glucose for effective, long‐term whitening. The dentin structures remain non‐destructive due to the low concentration of ROS, demonstrating excellent cell ...
Junseok Kim +13 more
wiley +1 more source
Compliance and stress sensitivity of spur gear teeth [PDF]
, 1983 The magnitude and variation of tooth pair compliance with load position affects the dynamics and loading significantly, and the tooth root stressing per load varies significantly with load position.
Cornell, R. W.
core +1 more source