Results 21 to 30 of about 456,394 (316)

In vitro comparison of marginal and internal fit between stainless steel crowns and esthetic crowns of primary molars using different luting cements

Dental Research Journal, 2019
Background: This study was to assess and compare the marginal and internal fit of stainless steel crowns (SSCs) with those of preveneered SSCs and zirconia crowns using different luting cements.
Sanaa Najeh Al-Haj Ali
doaj   +1 more source

Viscous behavior of resin composite cements

Dental Materials Journal, 2021
The objective of this study was to analyze the viscous behavior during setting reaction of resin composite cements and how it is influenced by temperature. Viscous properties during auto-polymerization at 23°C of three adhesive (Panavia V5 [PV5]; RelyX Ultimate [RUL]; Multilink Automix [MLA]) and three self-adhesive (Panavia SA plus [PSA]; RelyX Unicem
ZELLER, Daniela K., FISCHER, Jens, ROHR, Nadja   +2 more
openaire   +3 more sources

Sealing Ability of Alkaline Endodontic Cements versus Resin Cements [PDF]

Materials, 2017
Penetration of oral bacteria through root fillings leads to their long term failure. Dimensionally stable alkaline cements have been developed. A saliva challenge model was used to compare resistance to bacterial penetration of these alkaline cements to conventional root fillings that combine gutta percha (GP) with epoxy resin sealers.
Yu-Yao Teoh, Basil Athanassiadis, Laurence Walsh   +2 more
openaire   +4 more sources

Hardening of a dual-cure resin cement using QTH and LED curing units

Journal of Applied Oral Science, 2010
OBJECTIVE: This study evaluated the surface hardness of a resin cement (RelyX ARC) photoactivated through indirect composite resin (Cristobal) disks of different thicknesses using either a light-emitting diode (LED) or quartz tungsten halogen (QTH) light
Maria Jacinta Moraes Coelho Santos, Sheila Pestana Passos, Monalisa Olga Lessa da Encarnação, Gildo Coelho Santos Junior, Marco Antonio Bottino   +4 more
doaj   +1 more source

Evaluation of Microleakage in Zirconia Crown Systems Using Self-Adhesive Resin, Resin-Modified Glass Ionomer, and Glass Ionomer Cements: A Stereomicroscopic In Vitro Study

Journal of Pharmacy and Bioallied Sciences
Introduction: Microleakage is a critical issue impacting the success of zirconia crown restorations. This study compares the effectiveness of self-adhesive resin cement, resin-modified glass ionomer cement, and glass ionomer cement in minimizing ...
V. Amalorpavam, Sarath Chandra Govinda Raj, Joephin Soundar, S. Ramesh Raja, Anjumoni Daimary, K. Vijay   +5 more
doaj   +1 more source

Flax Composites With Improved Interfacial Strength Through Microbially Induced Mineral Precipitation

Advanced Materials, EarlyView.
A bio‐inspired biomineralization strategy introduces an additional hierarchy to flax fiber composites. By controlling microbe‐mediated mineral particle deposition through tuned salt concentrations, stress transfer within the natural fiber composite is enhanced.
Deniz Sayinbas, Ingo Nettersheim, Jeong‐Joo Oh, Marie‐Eve Aubin‐Tam, Julie Teuwen, Kunal Masania   +5 more
wiley   +1 more source

3D Printed Photon Shield Assembly for Low‐Noise Visual Stimulation During Two‐Photon Imaging in Mice

Advanced Materials Technologies, EarlyView.
We present the Photon Shield, an open‐hardware system for low‐noise two‐photon calcium imaging during visual stimulation in mice. Combining a 3D‐printed headplate and rail‐mounted shield substantially reduces stray‐light contamination, as quantitatively verified. Functional validation confirms reliable cortical responses. Open design files enable broad
Gergely Katona, Andrea Slézia, András Dávid, Ábel Petik, Dániel Hillier, István Ulbert, Attila Kaszás   +6 more
wiley   +1 more source

A comparison of the adhesive strength of zinc phosphate and self-adhesive resin cement as fiber post cementation materials

Dental Journal, 2017
Background: The use of fiber post has become commonplace among dental practitioners due to its several advantages. In accordance with the intended use of post which provides retention for coronal restoration, a cement is used that can provide high ...
Setyawan Bonifacius, Deddy Firman, Hasna Djiab   +2 more
doaj   +1 more source

Estabilidade da cor de agentes cimentantes utilizados para facetas cerâmicas [PDF]

, 2010
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2010O objetivo deste estudo in vitro foi avaliar a estabilidade da cor de diferentes agentes ...
Pinto, Greciana Bruzi Brasil
core  

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source