Results 11 to 20 of about 19,366 (210)

Polymerization Shrinkage, Shrinkage Stress, and Degree of Conversion in Bulk-Fill Resin Composites After Different Photo-Activation Methods

Dental Hypotheses, 2020
Introduction: The aim of this study was to evaluate the effect of photo-activation methods on the shrinkage behavior of bulk-fill resin composites. Materials and Methods: Three bulk-fill resin composites (Tetric N-Ceram bulk-fill, Xtra fill, and Filtek ...
Sara Majidinia, Hossein Bagheri, Shadi Ramezani, Mohammad Jafari Giv, Negin Vatanparast, Fatemeh Namdar   +5 more
doaj   +1 more source

A low-shrinkage, hydrophobic, degradation-resistant, antimicrobial dental composite using a fluorinated acrylate and an oxirane

Journal of Applied Biomaterials & Functional Materials, 2022
Objective: To develop a low shrinkage, hydrophobic, degradation-resistant, antimicrobial dental composite using a fluorinated acrylate, and a difunctional oxirane.
Clara Bergeron, Cori Ballard, Yiming Li, Wu Zhang, Zhe Zhong, Kyumin Whang   +5 more
doaj   +1 more source

Volumetric polymerization shrinkage of contemporary composite resins

Journal of Applied Oral Science, 2007
The polymerization shrinkage of composite resins may affect negatively the clinical outcome of the restoration. Extensive research has been carried out to develop new formulations of composite resins in order to provide good handling characteristics and ...
Halim Nagem Filho, Haline Drumond Nagem, Paulo Afonso Silveira Francisconi, Eduardo Batista Franco, Rafael Francisco Lia Mondelli, Kennedy Queiroz Coutinho   +5 more
doaj   +1 more source

Properties evaluation of silorane, low-shrinkage, non-flowable and flowable resin-based composites in dentistry [PDF]

PeerJ, 2015
Purpose. This study tested the null hypothesis that different classes of direct restorative dental materials: silorane-based resin, low-shrinkage and conventional (non-flowable and flowable) resin-based composite (RBC) do not differ from each other with ...
Rodrigo R. Maia, Rodrigo S. Reis, André F.V. Moro, Cesar R. Perez, Bárbara M. Pessôa, Katia R.H.C. Dias   +5 more
doaj   +2 more sources

Contemporary flowable bulk-fill resin-based composites: a systematic review

Biomaterial Investigations in Dentistry, 2023
Flowable bulk-fill resin-based composites (BF-RBCs) represent a new and interesting alternative for the bulk-fill restorative techniques in the posterior region.
Elizabeth Parra Gatica, Gerardo Duran Ojeda, Michael Wendler   +2 more
doaj   +1 more source

Influence of Monowave and Polywave LED Unites on G-Aenial Resin Composites’ Polymerization: An In Vitro Study

Dental Hypotheses, 2022
Objectives: Trimethylbenzoyldiphenylphosphine oxide and phenylpropanedione photoinitiator components in resin composites have been used widely due to their white color.
Azadeh Ghaemi, Milad Molayi, Rayan Chaharmahali   +2 more
doaj   +1 more source

Polymerization shrinkage stress of composite resins and resin cements – What do we need to know?

Brazilian Oral Research, 2017
Polymerization shrinkage stress of resin-based materials have been related to several unwanted clinical consequences, such as enamel crack propagation, cusp deflection, marginal and internal gaps, and decreased bond strength.
Carlos José SOARES, André Luis FARIA-E-SILVA, Monise de Paula RODRIGUES, Andomar Bruno Fernandes VILELA, Carmem Silvia PFEIFER, Daranee TANTBIROJN, Antheunis VERSLUIS   +6 more
doaj   +1 more source

Novel Dental Low-Shrinkage-Stress Composite with Antibacterial Dimethylaminododecyl Methacrylate Monomer

Journal of Functional Biomaterials, 2023
Objectives: Current dental resins exhibit polymerization shrinkage causing microleakage, which has the potential to cause recurrent caries. Our objectives were to create and characterize low-shrinkage-stress (LSS) composites with dimethylaminododecyl ...
Abdullah Alhussein, Rashed Alsahafi, Xiaohong Wang, Heba Mitwalli, Hanan Filemban, Gary D. Hack, Thomas W. Oates, Jirun Sun, Michael D. Weir, Hockin H. K. Xu   +9 more
doaj   +1 more source

Effect of preheating on polymerization shrinkage strain of BIS-GMA free and containing resin composite restorative materials (in vitro study)

Bulletin of the National Research Centre, 2022
Background This study investigated the effect of preheating of bulk-fill BIS-GMA free and containing resin composite on post-gel shrinkage strain. In a split Teflon mold, sixty resin composite specimens were prepared with dimensions 7 mm length × 4 mm ...
Mohamed Lotfy, Nermin A. Mahmoud, Mona I. Riad   +2 more
doaj   +1 more source

Spiroorthocarbonate as shrinkage resistance for UV-curing 3D printing: UV-curing kinetics, mechanical properties and volume shrinkage

eXPRESS Polymer Letters, 2021
Spiroorthocarbonates (SOCs) exhibit good shrinkage resistance with ring-opening polymerization initiated by a cationic photoinitiator, with potential application in reducing the volume shrinkage by C=C double bond polymerization on three-dimensional (3D)
G. H. Lin, L. J. Li, H. Xiang, J. Ye, H. P. Xiang, Z. Q. Li, X. X. Liu   +6 more
doaj   +1 more source