Results 71 to 80 of about 134,700 (206)
Trophic evolution in ornithopod dinosaurs revealed by dental wear
Nature CommunicationsOrnithopod dinosaurs evolved numerous craniodental innovations related to herbivory. Nonetheless, the relationship between occlusion, tooth wear rate, and tooth replacement rate has been neglected. Here, we reconstruct tooth wear rates by measuring tooth
Attila Ősi +9 more
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Nigerian Dental JournalObjective To determine the prevalence of tooth wear lesions and assess associated risk factors among patients attending the dental clinic of a state tertiary teaching hospital in Nigeria.
Augustine Ikponmwosa Edomwonyi +5 more
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Ideal spiral bevel gears: A new approach to surface geometry [PDF]
The fundamental geometrical characteristics of spiral bevel gear tooth surfaces are discussed. The parametric representation of an ideal spiral bevel tooth is developed based on the elements of involute geometry, differential geometry, and fundamental ...
Coy, J. J., Huston, R. L.
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Three-dimensional anatomy of equine incisors : tooth length, enamel cover and age related changes [PDF]
, 1944 BACKGROUND:Equine incisors are subjected to continuous occlusal wear causing multiple, age related changes of the extragingival crown. It is assumed that the occlusal wear is compensated by continued tooth elongation at the apical ends of the teeth.
Schrock, Patricia +3 more
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Frontiers in Veterinary ScienceIntroductionPeriodontal disease and tooth fracture are the main reasons for tooth extraction in dogs. The objectives of this study were to compare the prevalence of traumatic dentoalveolar injury (TDI), tooth wear, and periodontal disease in working dogs
Shawna Han +3 more
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Complete Mouth Rehabilitation and Gastroesophageal Reflux Disease: Conventional and Contemporary Treatment Approaches [PDF]
, 2017 This report describes the diagnosis and prosthodontic management of 2 patients with a history of chronic gastroesophageal reflux disease and worn dentition. Different treatment approaches were used for oral rehabilitation.
Chronopoulos, Vasilios +4 more
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Hybrid fuzzy- proportionl integral derivative controller (F-PID-C) for control of speed brushless direct curren motor (BLDCM) [PDF]
, 2017 Hybrid Fuzzy proportional-integral-derivative (PID) controllers (F-PID-C) is designed and analyzed for controlling speed of brushless DC (BLDC) motor. A simulation investigation of the controller for controlling the speed of BLDC motors is performed to ...
Farag A. M., Elkarghali
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Severe tooth wear in Prader-Willi syndrome. A case–control study
BMC Oral Health, 2012 Background Prader-Willi syndrome (PWS) is a rare complex multsystemic genetic disorder characterized by severe neonatal hypotonia, endocrine disturbances, hyperphagia and obesity, mild mental retardation, learning disabilities, facial dysmorphology and ...
Saeves Ronnaug +4 more
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Tribo-corrosion of steel in artificial saliva [PDF]
, 2014 Stainless steel is widely used as dental implant. However, there has been little work on the micro-abrasion of such materials in laboratory simulated oral environments, where abrasion, sliding wear can interact simultaneously.
Holmes, D., Sharifi, S., Stack, M. M.
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Study on Tooth Wear of Spur Gears Under the Mixed Elastohydrodynamic Lubrication
Jixie chuandong, 2022 To study the wear evolution process and wear law of involute spur gears under the mixed elastohydrodynamic lubrication (EHL) and consider the lubrication conditions, thermal effects and load changes in the wear process of gear pairs, a wear model of gear
Wang Han +3 more
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