Results 141 to 150 of about 23,616 (256)

Analysis of Wear Process in Aeronautic Spur Gear

Jixie chuandong, 2018
Aiming at the problem of wear on the spur gear of a type reducer,by the confocal laser scanning microscope,white light interferometer,the surface microtopography and microhardness of the gear are detected.
Chen Haifeng, Tang Jinyuan, Zhou Weihua
doaj  

Effects of Whitening Toothpastes on Aesthetic and Mechanical Properties of Anterior Composite Restorations: A Preclinical Evaluation

Applied Sciences
This in vitro study aimed to evaluate color recovery after 7 and 15 days of brushing with six whitening toothpastes that have different whitening mechanisms on coffee-stained anterior microhybrid composite resin.
Merve İşcan Yapar, Neslihan Çelik, İpek Çubukcu Özekin   +2 more
doaj   +1 more source

Evaluation of Tooth Erosion Potential of Zero and Carbonated Beverages in Korea: A Laboratory‐Based Study Focused on pH

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Objectives With increasing health consciousness, the consumption of zero‐calorie beverages (zero beverages) is also increasing. Zero beverages are devoid of sugar or alternative sugar content. Tooth erosion possibility continues to be reported in cases of carbonated beverage consumption.
Eun‐Ha Jung, Hyun‐Kyung Yim, Ji‐Hyun Min   +2 more
wiley   +1 more source

Remineralization of Artificial Caries-like Lesions in Permanent Enamel by MI Paste One: Comparative Physicochemical Outcomes and In Vitro Resistance to Secondary Demineralization

Journal of Functional Biomaterials
Background: Patients with White spot lesions (WSLs) are seeking minimally invasive remineralizing treatment. While fluoride is the gold standard of non-invasive caries therapy, its remineralizing impact is predominantly superficial.
Najla F. Alsayari, Sarah S. Al-Angari, Latifa A. Alhowaish, Abdulaziz S. Alangari, Raman Bedi, Ayman M. Sulimany, Maha A. Alsarheed   +6 more
doaj   +1 more source

Comparative assessment of enamel remineralisation on the surface microhardness of demineralized enamel - an in vitro study. [PDF]

PeerJ, 2022
Bhavsar B, Vijo M, Sharma P, Patnaik T, Alam MK, Patil S.   +5 more
europepmc   +1 more source

High‐Concentration Hydrogen Peroxide Gels Containing Calcium Polyphosphate Associated With Violet Led Light: Bleaching Efficacy and Effects on Enamel Properties

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To evaluate the effect of violet LED light (VL) and hydrogen peroxide (HP) in‐office bleaching gels supplemented with calcium polyphosphate (CaPP) or calcium gluconate (GU): Materials and Methods Bovine enamel blocks (n = 10) were randomly assigned: commercial HP gel, commercial HP gel with GU, or experimental 35% HP with or without
Hemanuelly Albuquerque dos Anjos, Débora Alves Nunes Leite Lima, Carolina Meneghin Barbosa, Klaus Rischka, Waldemir Francisco Vieira‐Junior   +4 more
wiley   +1 more source

The Influence of Electric Discharge Energy and Conditions of its Flow on the Geometrical Parameters of a Single Well and Microhardness of its Surface Layer

Механика машин, механизмов и материалов, 2018
The paper is devoted to an experimental study of the effect of an electric discharge energy and the conditions of its flow (in air and using distilled water) on the geometrical parameters of a single well obtained on a sample of U8A steel, as well as the
Mikhail G. Kiselev, Sergey G. Monich, Pavel S. Bohdan, Andrey S. Nichiporuk   +3 more
doaj  

Depth Of Cure And Microhardness Of Bulk-Fill Composites

International Dental Journal
Aim or purpose: This study aimed to compare a self-cured composite with three light-cure bulk-fill composites by assessing top and bottom surface microhardness values, and the depth of cure calculated through the bottom/top microhardness ratio (B/T ratio)
Sevgi Güngör, Neslihan Arhun, Leyla Kerimova-Köse   +2 more
doaj   +1 more source

Effects of Polishing, Resin Coating, and Glaze Coating on the Surface Properties of a 3D‐Printed Splint Resin

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective The objective of this in vitro study was to evaluate the effects of different surface finishing protocols and post‐curing environments on the surface roughness (Ra) and Vickers hardness (VHN) of a 3‐dimensionally (3D)‐printed occlusal splint resin.
İzim Türker Kader, Ecem Karacan, Berru Kursoğlu, Pınar Kursoğlu   +3 more
wiley   +1 more source

Evaluation of compressive strength, surface microhardness, solubility and antimicrobial effect of glass ionomer dental cement reinforced with silver doped carbon nanotube fillers. [PDF]

BMC Oral Health, 2023
Hamdy TM.
europepmc   +1 more source