Results 31 to 40 of about 133,852 (304)

Gear wear process monitoring using a sideband estimator based on modulation signal bispectrum [PDF]

open access: yes, 2017
As one of the most common gear failure modes, tooth wear can produce nonlinear modulation sidebands in the vibration frequency spectrum. However, limited research has been reported in monitoring the gear wear based on vibration due to the lack of tools ...
Ball, Andrew   +4 more
core   +2 more sources

Tooth wear in patients treated with HIV anti-retroviral therapy

open access: yesBMC Oral Health, 2019
Background The objective of this study was to elucidate the relationship between HIV anti-retroviral therapy and tooth wear. Methods Assessment of tooth wear was conducted both with a survey questionnaire and clinical assessment at Russell Street Dental ...
Harjit Singh Sehgal   +4 more
doaj   +1 more source

Dentition and body condition: tooth wear as a correlate of weight loss in roe deer

open access: yesFrontiers in Zoology, 2021
Background In many mammalian species, once the permanent teeth have erupted, the only change to dentition is a gradual loss of tooth surface/height through wear. The crown of the teeth cannot be repaired once worn.
Roberta Chirichella   +3 more
doaj   +1 more source

Sequentially Functional And Asthetic Restoration Of Severe Dentin Dysplasia

open access: yesInternational Dental Journal
Introduction: This case report introduced sequentially functional and aesthetic restoration on a patient with dentin dysplasia type II (DD-II) accompanied by severe tooth wear. Case description: An eight-year-old girl with severe tooth wear presented for
Xuemei Liu, Xu Chen
doaj   +1 more source

The Prevalence of Tooth Wear among a Group of Yemeni Adults.

open access: yesJournal of Oral Research, 2019
This study aimed at investigating tooth wear prevalence and determining the associated factors among a group of Yemeni adults. It is a preliminary cross-sectional and analytical investigation conducted on 600 participants aged 20–50 years.
Safa Al-hammadi   +2 more
doaj   +1 more source

Copper deficit as a potential pathogenic factor of reduced bone mineral density and severe tooth wear [PDF]

open access: yes, 2013
SUMMARY: The study evaluated if men and women with severe tooth wear were at increased risk of general bone loss. Enamel biopsies obtained from 50 subjects aged 47.5 ± 5 years showed decreased copper content, which was associated with reduced spine bone ...
J. Konstantynowicz   +4 more
core   +1 more source

BS-ISO helical gear fatigue life estimation and wear quantitative features analysis [PDF]

open access: yes, 2009
Original article can be found at: http://www3.interscience.wiley.com/ Copyright Blackwell Publishing. DOI: 10.1111/j.1475-1305.2008.00457.xLack of representative theoretical models for gear wear causes difficulties in their useful lifetime prediction ...
Bostjan   +6 more
core   +1 more source

Phytoliths can cause tooth wear [PDF]

open access: yesJournal of The Royal Society Interface, 2020
Comparative laboratory sliding wear tests on extracted human molar teeth in artificial saliva with third-body particulates demonstrate that phytoliths can be as effective as silica grit in the abrasion of enamel. A pin-on-disc wear testing configuration is employed, with an extracted molar cusp as a pin on a hard disc antagonist, under loading ...
Rodriguez-Rojas, F.   +4 more
openaire   +3 more sources

Within-guild dietary discrimination from 3-D textural analysis of tooth microwear in insectivorous mammals [PDF]

open access: yes, 2013
Resource exploitation and competition for food are important selective pressures in animal evolution. A number of recent investigations have focused on linkages between diversification, trophic morphology and diet in bats, partly because their roosting ...
Crumpton, Nicholas   +4 more
core   +2 more sources

Brief Communication: Intertooth and Intrafacet Dental Microwear Variation in an Archaeological Sample of Modern Humans From the Jordan Valley [PDF]

open access: yes, 2006
Dental microwear was recorded in a Bronze-Iron Age (3570–3000 BP) sample of modern humans recovered from Tell es-Sa'idiyeh in the Jordan Valley. Microwear patterns were compared between mandibular molars, and between the upper and lower part of facet 9 ...
Mahoney, Patrick
core   +1 more source

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