Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mohamed Ahmed HELAL"'
Publikováno v:
BMC Oral Health, Vol 24, Iss 1, Pp 1-8 (2024)
Abstract Background While many denture base materials are currently available on the market, little data exists regarding their dimensional stability after exposure to the oral environment. This study aimed to evaluate the effect of thermocycling on
Externí odkaz:
https://doaj.org/article/7a38576ff644494999a9619eafaa7ff5
Autor:
Ahmad M. Al-Thobity, Abdulkareem M. AlOtaibi, Abdulrahman E. Alhumaidan, Ahmed A. Aldossary, Intisar Ahmad Siddiqui, Mohamed Ahmed Helal, Abdulmohsen Alsalman
Publikováno v:
Saudi Dental Journal, Vol 34, Iss 7, Pp 589-595 (2022)
Objectives: This investigation was carried out to examine the influence of thermocycling aging on the surface roughness (Ra, µm), color parameters (L*, a*, b*), lightness change (ΔL*), chroma change (ΔC*ab), color change (ΔE), and microhardness (
Externí odkaz:
https://doaj.org/article/0bffc4fd6d074bf2b821b5fce1ab23f5
Autor:
Abdel-Naser M. Emam, Ahmed Ayman El-Esawy, Mohammed Hamad Alyami, Yasser Baraka, Mohammed M. Gad, Mohamed Ahmed Helal
Publikováno v:
Dentistry Journal, Vol 12, Iss 2, p 32 (2024)
Background: Digital technology has been introduced in prosthodontics, and it has been widely used in denture duplication instead of a conventional denture duplication technique. However, research comparing different denture duplication techniques and
Externí odkaz:
https://doaj.org/article/90c6fb64e909446e8378341a0503531a
Autor:
Abdel-Naser M. Emam, Emad A. Azmy, Mohamed Reda Zaki Al-kholy, Mohammed M. Gad, Mohamed Ahmed Helal
Publikováno v:
International Journal of Dentistry, Vol 2023 (2023)
Background. Although the mechanical behaviors of PMMA were improved with nanoparticles addition, there is a lack of study on the color changes of nanocomposite denture base resin. This study aimed to assess and compare the color of nanocomposite dent
Externí odkaz:
https://doaj.org/article/ec41b19bfbf44fc3b3a45b6b75421fa6
Autor:
Emad Azmy, Mohamed Reda Zaki Al-kholy, Ahmad M. Al-Thobity, Mohammed M. Gad, Mohamed Ahmed Helal
Publikováno v:
International Journal of Biomaterials, Vol 2022 (2022)
Objective. This study aimed to investigate the effects of nanoparticles (zirconium dioxide (ZrO2), titanium dioxide (TiO2), and silicon dioxide (SiO2)) on the flexural strength, impact strength, hardness, and wear resistance of the acrylic resin dent
Externí odkaz:
https://doaj.org/article/7493cca7d5824d13a6358f333ad745fb
Autor:
Emad Azmy, Mohamed Reda Zaki Al-Kholy, Mohamed Fattouh, Laila Mohamed Mohamed Kenawi, Mohamed Ahmed Helal
Publikováno v:
International Journal of Biomaterials, Vol 2022 (2022)
Objective. This study aimed to evaluate the effect of nanoparticles, zirconium dioxide (ZrO2), titanium dioxide (TiO2), and silicon dioxide (SiO2), on flexural strength (FS), hardness, and wear resistance of light cured dental composite resin. Materi
Externí odkaz:
https://doaj.org/article/a2597b317c754034a353fdd33e29998d
Autor:
Emad Azmy, Mohamed Reda Zaki Al-kholy, Mohammed M. Gad, Ahmad M. Al-Thobity, Abdel-Naser M. Emam, Mohamed Ahmed Helal
Publikováno v:
International Journal of Dentistry, Vol 2021 (2021)
Background. The effect of beverages on nanocomposite denture base materials is neglected. Therefore, this study aimed to investigate the influence of different beverages (coffee, tea, cola, and mineral water) on the color stability of nanoparticles-m
Externí odkaz:
https://doaj.org/article/d1ab4e32c9cf4e99ac2a5f9948493f10
Publikováno v:
Journal of Prosthodontics. 32:11-19
This study compared the dimensional changes between computer-aided design and computer-aided manufacturing (CAD-CAM) milled complete denture bases (CDBs) and three-dimensional (3D) printed CDBs.One maxillary completely edentulous stone model was fabr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aeaffa193a4e25a41557b6b22ab523ca
https://doi.org/10.1111/jopr.13538
https://doi.org/10.1111/jopr.13538
Autor:
Emad, Azmy, Mohamed Reda Zaki, Al-Kholy, Ahmad M, Al-Thobity, Mohammed M, Gad, Mohamed Ahmed, Helal
Publikováno v:
International journal of biomaterials. 2022
This study aimed to investigate the effects of nanoparticles (zirconium dioxide (ZrOAcrylic resin specimens were fabricated in dimensions according to American Dental Association (ADA) specifications per test. Specimens were divided according to nano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6c4b74331cc38cf124801398251f9dd5
https://pubmed.ncbi.nlm.nih.gov/35528846
https://pubmed.ncbi.nlm.nih.gov/35528846
Autor:
Esmail Ahmed ABDEL-GAWWAD, Abdel Aziz Baiomy ABDULLAH, Mostafa Yassin FARHAT, Mohamed Ahmed HELAL
Publikováno v:
Brazilian Dental Science. 24
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7c51a8c68c2ed90b761529d691fa436
https://doi.org/10.4322/bds.2021.e2670
https://doi.org/10.4322/bds.2021.e2670