نتایج جستجو برای: dental composite resin

تعداد نتایج: 302297  

Journal: :European journal of oral sciences 2012
Vibeke B Michelsen Hilde B M Kopperud Gunvor B Lygre Lars Björkman Einar Jensen Inger S Kleven Johanna Svahn Henning Lygre

Resin-based dental restorative materials contain allergenic methacrylate monomers, which may be released into saliva after restorative treatment. Monomers from resin-based composite materials have been demonstrated in saliva in vitro; however, studies analyzing saliva after restorative therapy are scarce. The aim of this study was to quantify methacrylate monomers in saliva after treatment with...

2016
Suha S Turkaslan Yalcın Deger Ender Akan Zeynep Basagaoglu Demirekin Sibel Kan Ersin Uysal

The aim of the present study was to evaluate the performance of dental practitioners incorporating attachments into overdenture prostheses, via the direct method, before and after an instructive course. Forty randomized gypsum models, with implants either angulated or parallel to each other, were given to forty dentists before and after an instructive course. A rubber dam or temporary light-cur...

Journal: :The Journal of organic chemistry 2000
Bellec Garrido Montalban A Williams Cook Anderson Feng Barrett Hoffman

The first metalated porphyrazinediols 11 have been prepared from (L)-(+)-dimethyl tartrate via conversion into the corresponding dispoke or 2,3-dimethoxy-2,3-butanediyl protected 2,3-dihydroxymaleonitrile, Linstead macrocyclization, transmetalation, and deprotection. Their stability is very dependent on the nature of the metal ion in the cavity of the porphyrazine. Reaction of these porphyrazin...

2016
Anne Peutzfeldt Adrian Lussi Simon Flury

This study investigated the influence of light-curing at high irradiances on micromechanical properties of resin cements. Three dual-curing resin cements and a light-curing flowable resin composite were light-cured with an LED curing unit in Standard mode (SM), High Power mode (HPM), or Xtra Power mode (XPM). Maximum irradiances were determined using a MARC PS radiometer, and exposure duration ...

Journal: :Compendium of continuing education in dentistry 2016
Markus B Blatz Marcela Alvarez Kimiyo Sawyer Marco Brindis

Zirconia has become one of the most popular materials in dentistry. New high-translucent zirconia ceramics have favorable optical properties and can be applied as monolithic full-contour restorations in various clinical indications for posterior and anterior teeth. However, having reliable cementation protocols is fundamental for clinical success of indirect ceramic dental restorations, includi...

Journal: :The Medical Journal of Cairo University 2020

Journal: :Dental materials : official publication of the Academy of Dental Materials 2003
H H K Xu G E Schumacher F C Eichmiller R C Peterson J M Antonucci H J Mueller

OBJECTIVES Direct-filling resin composites are used in relatively small restorations and are not recommended for large restorations with severe occlusal-stresses. The aim of this study was to reinforce composites with fiber preforms, and to investigate the effects of layer thickness and configurations on composite properties. It was hypothesized that fiber preforms would significantly increase ...

Journal: :Clinical, Cosmetic and Investigational Dentistry 2014

Journal: :dental research journal 0
mahtab memarpour reza derafshi mahshid razavi

background: obtaining optimal marginal adaption with prefabricated stainless steel crowns (sscs) is diffi cult, especially after removing dental caries or defects in cervical areas. this situation requires the use of an ssc after tooth reconstruction. this study evaluated microleakage and material loss with fi ve restorative materials at ssc margins. materials and methods: one hundred and twent...

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