Results 31 to 40 of about 25,910 (211)

Use of dentifrices to prevent erosive tooth wear: harmful or helpful?

open access: yesBrazilian Oral Research, 2014
Dental erosion is the loss of dental hard tissues caused by non-bacterial acids. Due to acid contact, the tooth surface becomes softened and more prone to abrasion from toothbrushing.
Ana Carolina Magalhães   +2 more
doaj   +1 more source

A profilometric and scanning electron microscopic analysis of tooth surface abrasion caused by rotary/oscillatory, linear motion, sonic, and ultrasonic toothbrushes: An in vitro study

open access: yesJournal of Indian Society of Periodontology, 2021
Background: Adequate plaque control facilitates good gingival and periodontal health, prevents tooth decay, and preserves oral health. Toothbrushing is the primary method of removing plaque and can be classified into powered and manual toothbrushes. Aim:
Tejinder Pal Singh   +2 more
doaj   +1 more source

Hominid butchers and biting crocodiles in the African Plio-Pleistocene. [PDF]

open access: yes, 2017
Zooarchaeologists have long relied on linear traces and pits found on the surfaces of ancient bones to infer ancient hominid behaviors such as slicing, chopping, and percussive actions during butchery of mammal carcasses.
El Zaatari, Sireen   +2 more
core   +1 more source

Influence of chemical degradation and abrasion on surface properties of nanorestorative materials

open access: yesBrazilian Journal of Oral Sciences, 2015
Aim: The aim of this in vitro study was to investigate the synergistic effect of chemical degradation (erosion) and three-body abrasion (mechanical degradation) on the surface roughness (Ra) and hardness (KHN) of two nanorestorative materials and two ...
Andréia Bolzan de Paula   +5 more
doaj   +1 more source

Influence of cutting parameters and tool wear on the surface integrity of cobalt-based Stellite 6 alloy when machined under a dry cutting environment [PDF]

open access: yes, 2016
The efficiency of a machining process can be measured by evaluating the quality of the machined surface and the tool wear rate. The research reported herein is mainly focused on the effect of cutting parameters and tool wear on the machined surface ...
Alexander Galloway   +19 more
core   +1 more source

Detecting inter-cusp and inter-tooth wear patterns in rhinocerotids. [PDF]

open access: yesPLoS ONE, 2013
Extant rhinos are the largest extant herbivores exhibiting dietary specialisations for both browse and grass. However, the adaptive value of the wear-induced tooth morphology in rhinos has not been widely studied, and data on individual cusp and tooth ...
Lucy A Taylor   +6 more
doaj   +1 more source

Tooth surface loss: A review of literature

open access: yesSaudi Dental Journal, 2020
Objectives: Tooth surface loss (TSL) or tooth wear (TW) is an irreversible loss of hard tooth structure caused by factors other than those responsible for dental caries. TSL is observed clinically as attrition, abrasion, abfraction, and erosion.
Abdulhadi Warreth   +4 more
doaj   +1 more source

Poly(alkyl methacrylate) tooth coatings for dental care: evaluation of the demineralisation-protection benefit using a time-resolved in vitro method [PDF]

open access: yes, 2011
An in vitro method for the time-resolved quantification of acid-mediated tooth demineralisation has been developed and evaluated against putative non-permanent protective formulations based on a series of poly(alkyl methacrylate)s.
Attin   +47 more
core   +4 more sources

Interactions between toothbrush and toothpaste particles during simulated abrasive cleaning [PDF]

open access: yes, 2006
Most people clean their teeth using toothpaste, consisting of abrasive particles in a carrier fluid, and a filament based toothbrush to remove plaque and stain.
Bjorn H., Buttery T. C., Hunter M. L.
core   +1 more source

Hybrid fuzzy- proportionl integral derivative controller (F-PID-C) for control of speed brushless direct curren motor (BLDCM) [PDF]

open access: yes, 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
core  

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