Results 21 to 30 of about 18,433 (253)

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

Conjugation of diisocyanate side chains to dimethacrylate reduces polymerization shrinkage and increases the hardness of composite resins

Journal of the Formosan Medical Association, 2014
Polymerization shrinkage is one of the main causes of dental restoration failure. This study tried to conjugate two diisocyanate side chains to dimethacrylate resins in order to reduce polymerization shrinkage and increase the hardness of composite ...
Yih-Dean Jan, Bor-Shiunn Lee, Chun-Pin Lin, Wan-Yu Tseng   +3 more
doaj   +1 more source

Effect of the composite curing light mode on polymerization shrinkage of resin composites

Cumhuriyet Dental Journal, 2012
Objectives: The aim of this study was to investigate the effects of light curing method on the polymerization shrinkage of composite resins. Materials and Methods: Eight methods of four different light curing units were tested by forming 16 groups using ...
Diğdem Eren, Feridun Hürmüzlü, Ozden Ozel Bektas   +2 more
doaj   +1 more source

Evaluation of polymerization shrinkage stress in silorane-based composites

Restorative Dentistry & Endodontics, 2011
Objectives The purpose of this study was to evaluate the polymerization shrinkage stress among conventional methacrylate-based composite resins and a silorane-based composite resin.
Seung-Ji Ryu,, Ji-Hoon Cheon, Jeong-Bum Min   +2 more
doaj   +1 more source

Analytical methods for the measurement of polymerization kinetics and stresses of dental resin-based composites: A review

Dental Research Journal, 2017
Resin-based composites are commonly used restorative materials in dentistry. Such tooth-colored restorations can adhere to the dental tissues. One drawback is that the polymerization shrinkage and induced stresses during the curing procedure is an ...
Mehrsima Ghavami-Lahiji, Tabassom Hooshmand   +1 more
doaj   +1 more source

Evaluation of Two Resin Composites Having Different Matrix Compositions

Dentistry Journal, 2020
This study compared two resin composites with similar filler systems and different matrix compositions. The depth of cure (DoC), polymerization shrinkage, and marginal leakage were evaluated.
Tarek M. Elshazly, Christoph Bourauel, Dalia I. Sherief, Dalia I. El-Korashy   +3 more
doaj   +1 more source

Evaluation of polymerization shrinkage, polymerization shrinkage stress, wear resistance, and compressive strength of a silorane-based composite: A finite element analysis study

Indian Journal of Dental Research, 2017
Background: Understanding the mechanical properties is important in predicting the clinical behavior of composites. Finite element analysis (FEA) evaluates properties of materials replicating clinical scenario.
Suresh Mitthra, Kothandaraman Rajkumar, Sekar Mahalaxmi   +2 more
doaj   +1 more source

Effects of Nano silver particles on mechanical properties of polymeric dental filling

Al-Mustansiriyah Journal of Pharmaceutical Sciences, 2020
Polymeric dental filling (light-cured dental filling) have many problems like polymerization shrinkage and weakness in mechanical properties. Recently, scientists found that nanoparticles are good solutions for many problems in dentistry.
Abbas abed lateef
doaj   +1 more source