Results 71 to 80 of about 7,932 (265)

Research on Optimal Width of Coal Pillars in Both Sides of Abandoned Mining Areas and Tunnel Control Technology

open access: yesEnergy Science &Engineering, EarlyView.
This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin   +4 more
wiley   +1 more source

Mechanisms of Roadway Instability and Coupled Control Technology for Working Face Passing Through Fault Zones

open access: yesEnergy Science &Engineering, EarlyView.
This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin   +4 more
wiley   +1 more source

Resin cements: Composite luting cements

open access: yes, 2004
Resin cements (composite luting cements) are used for cementation all ceramic crowns in contemporary dental practice. These materials which are characterized by type of fillers, initiation system, their viscosity, mechanical properties (wear resistance, elastic modulus, compressive strength, tensile and shear strength), and by their physical properties
Obradović-Đuričić, Kosovka   +1 more
openaire   +1 more source

Clinical outcomes of a novel flowable calcium silicate cement in equine endodontic treatment

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Orthograde endodontic treatment of equine cheek teeth is performed infrequently with variable success rates of obturation with calcium hydroxide paste (CHP). A novel flowable calcium silicate cement (eCSC) formulated for use as an obturation material in equine teeth has demonstrated acceptable canal filling volumes and evidence of ...
Kirsten Jackson   +5 more
wiley   +1 more source

Cement selection for fixing implant restorations [PDF]

open access: yesStomatološki glasnik Srbije, 2019
Introduction When intraocclusal space is long enough, and patient has high aesthetic demands, cementing implant restoration is the proper choice. The aim of this study was to assess retentive forces of different cements used for fixing restoration to ...
Stamenković Dejan   +1 more
doaj  

Water interaction with dental luting cements by means of sorption and solubility

open access: yesBrazilian Dental Science, 2013
Water contributes to the setting reaction of self-adhesive luting cements, however, it can also accelerate their degradation. Objectives: The aim of this study was to compare a self-adhesive resin luting cement to other resin-based and glass-ionomer ...
Larissa Pincelli Chaves   +5 more
doaj   +1 more source

A comparative study of solubility between resin cement and self-adhesive resin cement

open access: yesInternational Arab Journal of Dentistry, 2013
Resin cements have been largely used for luting indirect restorations due to their bonding abilities to the tooth structures and the increase of the restorations stability; however their solubility can negatively affect the restoration durability. The aim of this in vitro study was to evaluate and to compare water solubility values of conventional ...
Rahaf KURDI   +2 more
openaire   +1 more source

Resin Content in Cement Liquids of Resin-Modified Glass Ionomers.

open access: yesDental Materials Journal, 1999
Qualitative and quantitative analyses were conducted on four kinds of resin-modified glass ionomer (RMGI) cement liquids, LC, LC II, LC III (hereinafter referred to as LCs) and VM, using HPLC and laser Raman spectroscopic methods. HPLC revealed that among the RMGI liquids LCs contain 31-32% HEMA (2-Hydroxyethyl methacrylate), and VM contains 18% of the
IKEDA, Kuniko   +5 more
openaire   +3 more sources

Impact of a Modular Escape Game on Undergraduate and Continuing Dental Education

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Purpose This study aimed to assess the educational impact and perceived relevance of a pedagogical escape game designed to reinforce key concepts related to dental biomaterials. Methods In 2023, a modular escape game comprising four mandatory stations and one bonus station was developed and integrated into two pedagogical settings: a ...
Sara Bergman   +24 more
wiley   +1 more source

A review of adhesives and cements used in all-ceramic restorations and tooth-colored fiber posts

open access: yesمجله دانشکده دندانپزشکی اصفهان, 2013
Introduction: The clinical success of indirect restorations is influenced by several factors, including selection of a suitable cement. The introduction of adhesive resin systems has led to increased use of bonded all-ceramic restorations.
Mahsa Sahraneshin- Samani   +2 more
doaj  

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