Results 51 to 60 of about 267,458 (187)

摆动活齿传动啮合副运动状态分析与共轭齿廓滑动率研究

open access: yesJixie chuandong, 2013
Motion state of meshing pairs of swing movable tooth during one motion cycle is studied and meshing process is analyzed.The formula of relative angular velocity is deduced.Variation curve of relative angular velocity is plotted and variation rule is ...
宜亚丽, 安子军, 曲继方
doaj  

Novel 3-dimensional classification of cervical abrasion using CBCT: A comprehensive analysis

open access: yesJournal of Oral Biology and Craniofacial Research
Introduction: Tooth cervical abrasion (CA) is a prevalent non-carious cervical lesion that poses challenges for accurate diagnosis from periapical radiographs due to difficulties in assessing the lesion's extent, associated bone loss, and pulpal ...
Tarun Kumar Singh   +3 more
doaj   +1 more source

Bio-tribocorrosion mechanisms in orthopaedic devices : mapping the micro-abrasion-corrosion behaviour of a simulated CoCrMo hip replacement in calf serum solution [PDF]

open access: yes, 2014
Load bearing implant prostheses such as orthopaedic hip and knee implants may be considered as tribocorrosion systems since the wear processes are a result of combined mechanical and chemical mechanisms.
Black, R.A., Stack, M.M., Sadiq, K.
core   +4 more sources

MORPHOLOGICAL CHANGES IN TOOTH DENTIN AT VARIOUS STAGES OF ABRASION AND THEIR IMPACT ON THE CHOICE OF ORTHOPEDIC TREATMENT

open access: yesКлінічна та профілактична медицина
Introduction. The severity of orthopedic treatment of patients with pathological abrasion of hard dental tissues is due to the progressive development of abrasion, an increase in the free interocclusal space, a decrease in the interalveolar distance and ...
Mykola M. Maliuchenko   +6 more
doaj   +1 more source

Is Deterioration of Surface Properties of Resin Composites Affected by Filler Size?

open access: yesInternational Journal of Dentistry, 2020
Statement of the problem. Resin composite restorations can lose their aesthetic properties in clinical service. Purpose. To investigate the effect of filler size on surface gloss and roughness of resin composites using a glossmeter and 3D noncontact ...
H. Elbishari   +2 more
doaj   +1 more source

Protective effect of green tea on dentin erosion and abrasion

open access: yesJournal of Applied Oral Science, 2009
OBJECTIVE: This in situ study evaluated the protective effect of green tea on dentin erosion (ERO) and erosion-abrasion (ABR). MATERIAL AND METHODS: Ten volunteers wore intraoral palatal appliances with bovine dentin specimens subjected to ERO or ERO ...
Melissa Thiemi Kato   +5 more
doaj   +1 more source

Comparative evaluation of cemental abrasion caused by soft and medium bristle hardness toothbrushes at three predetermined toothbrushing forces: An in vitro study

open access: yesJournal of Indian Society of Periodontology, 2017
Background: Plaque control has been shown to have a pivotal role in maintaining optimal periodontal health. Toothbrushing as a mechanical plaque control tool is the most popular and effective option for self-performed oral health maintenance.
Chaitanya Pradeep Joshi   +4 more
doaj   +1 more source

Tooth-whitening activity of a novel home-bleaching system utilising thermal diffusion : a multifactorial simultaneous evaluation of efficacy at cervical, body and incisal tooth sites [PDF]

open access: yes, 2012
Introduction The ability of a thermal diffusion system (TDS) to promote the tooth-whitening actions of a bleaching gel/bleaching activator combination product (containing a final hydrogen peroxide (H2O2) content of 10.0% (w/v)) towards discoloured 'smile-
Grootveld, Martin   +6 more
core   +1 more source

Effect of combining different 10-MDP-containing primers and cement systems on shear bond strength between resin cement and zirconia

open access: yesBMC Oral Health
Purpose The longevity of zirconia restoration depends upon its esthetic, proper occlusion, marginal adaptation, and restoration retention. This study aimed to investigate the combination of 10-MDP-containing primers between the two commercial systems ...
Kan Wongkamhaeng   +4 more
doaj   +1 more source

Comparative Effect of Calcium Mesoporous Silica Versus Calcium and/or Fluoride Products on the Reduction of Erosive Tooth Wear and Abrasive Enamel Lesion

open access: yesPesquisa Brasileira em Odontopediatria e Clínica Integrada, 2022
Objective: To evaluate the effect of a calcium nanocompound on the reduction of erosive tooth wear and abrasion. Material and Methods: Bovine enamel specimens (BE), were randomly assigned to the following groups (n = 10): G1 = Calcium mesoporous silica ...
Isabella Barbosa dos Santos Justino   +7 more
doaj  

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