Results 51 to 60 of about 25,910 (211)

Occlusal enamel complexity in middle miocene to holocene equids (Equidae: Perissodactyla) of North America.

open access: yesPLoS ONE, 2014
Four groups of equids, "Anchitheriinae," Merychippine-grade Equinae, Hipparionini, and Equini, coexisted in the middle Miocene, but only the Equini remains after 16 Myr of evolution and extinction.
Nicholas A Famoso, Edward Byrd Davis
doaj   +1 more source

The Post–endodontic Adhesive Interface: Theoretical Perspectives and Potential Flaws [PDF]

open access: yes, 2018
Introduction The aim of this review was to analyze the potential of successful bonds of endodontic posts to radicular dentin as well as the limitations of the post–endodontic adhesive interface. Methods The MEDLINE/PubMed and Web of Science electronic
He, Jianing   +2 more
core   +1 more source

The Efficacy of Selected Desensitizing OTC Products: A Systematic Review. [PDF]

open access: yes, 2014
Licensed by the Creative Commons Attribution LicenseObjectives. The aim of the present study was to review the published literature in order to identify relevant studies for inclusion and to determine whether there was any evidence on the clinical ...
Gillam, DG, Hill, R, Talioti, E
core   +4 more sources

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

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

Evaluation of retention of pit and fissure sealants placed with and without air abrasion pretreatment in 6-8 year old children – An in vivo study [PDF]

open access: yes, 2017
The success of pit and fissure sealants is directly related to their retention. The purpose of this study was to assess and compare the retention of pit and fissure sealants placed using acid etch alone and a combination of air abrasion and acid etch ...
Bhushan, Urvashi, Goswami, Mridula
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

Clinical measurement of tooth wear: tooth Wear Indices [PDF]

open access: yes, 2012
Attrition, erosion, and abrasion result in alterations to the tooth and manifest as tooth wear. Each classification corresponds to a different process with specific clinical features. Classifications made so far have no accurate prevalence data because
Castellanos Cosano, Lizett   +4 more
core   +1 more source

Scanning electron microscopic study of the in situ effect of salivary stimulation on erosion and abrasion in human and bovine enamel [PDF]

open access: yes, 2008
This in situ study investigated, using scanning electron microscopy, the effect of stimulated saliva on the enamel surface of bovine and human substrates submitted to erosion followed by brushing abrasion immediately or after one hour.
BUZALAF, Marília Afonso Rabelo   +6 more
core   +3 more sources

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