Abstract:
:The purpose of this study was to evaluate the effect of different polymerization cycles on the flexural strengths and microhardness of two denture base materials (Meliodent and Paladent). Heat-polymerized acrylic resin specimens (65.0 mm long×10.0 mm wide×2.5 mm in height) were prepared using different short and long polymerization cycles. After the specimens had been polymerized, they were stored in distilled water at 37±1°C for 24 h. Flexural strength test was performed at a cross-head speed of 5 mm/min and Vickers microhardness was measured. Data were analyzed with a 1-way analysis of variance followed by Tukey test, and Student t-test (α=0.05). The flexural strengths and microhardness were significantly different between Meliodent and Paladent (p<0.05). Significant differences were found among the polymerization cycles in terms of flexural strengths and microhardness (p<0.05). Polymerization with G cycle may be suggested for Meliodent and H cycle may be suggested for Paladent.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Gungor H,Gundogdu M,Alkurt M,Yesil Duymus Zdoi
10.4012/dmj.2016-023subject
Has Abstractpub_date
2017-03-31 00:00:00pages
168-173issue
2eissn
0287-4547issn
1881-1361journal_volume
36pub_type
杂志文章abstract::The aim of this study was to estimate the flexural properties of three kinds of experimental fiber-reinforced composite (FRC) posts and to evaluate their potential use as posts. Experimental FRC posts were fabricated with glass, aramid, and UHMWP fibers. Commercial FRC posts were used for comparison. A three-point ben...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2010-053
更新日期:2011-01-01 00:00:00
abstract::Initial attachment of human oral keratinocytes (HOKs) cultured on mirror-surfaced commercially pure titanium (Ti) or yttria-stabilized tetragonal zirconia polycrystals (TZP) was investigated. Numbers of viable attached HOKs, their mRNAs and proteins expression of laminin γ2 and integrin β4 were evaluated using the WST...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2011-189
更新日期:2012-01-01 00:00:00
abstract::This research was conducted to investigate the bond strength between artificial teeth and a thermoplastic denture base resin for injection molding with different surface preparations for use in flexible resin removable partial dentures. Composite resin denture teeth and acrylic denture resin teeth were bonded to three...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2020-183
更新日期:2021-01-15 00:00:00
abstract::The purpose of this study was to evaluate the effects of dentin attrition, phosphoric acid etching, and cyclic loading on the microtensile bond strength (microTBS) of a self-etching adhesive system to dentin. Flat dentin surfaces of human molars were assigned to eight experimental groups based on those with or without...
journal_title:Dental materials journal
pub_type: 杂志文章,随机对照试验
doi:10.4012/dmj.28.197
更新日期:2009-03-01 00:00:00
abstract::The aim of this study was to evaluate the bond strength of three adhesive systems: Excite™, Adper Prompt L-Pop™ and AdheSE One™ to varying degrees of fluorotic enamel using micro-tensile bond strength (μTBS) tests. Human enamel was classified according to the Thylstrup and Fejerskov Index. The interface resin-enamel w...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2012-140
更新日期:2012-01-01 00:00:00
abstract::This study aimed to evaluate influence of different post-end positions in alveolar bone level on stress distributions in resin-core build-up tooth under different load directions. Three-dimensional mathematical models of a root-filled mandibular premolar tooth were constructed. Resin post and core were built-up with s...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2017-160
更新日期:2018-06-08 00:00:00
abstract::Novel fast-setting calcium silicate cement with fluoride (CSC) has been developed for potential applications in tooth crown. The aim of this study was to test the diametral tensile strength (DTS) of different CSC compositions in humid condition on day1, 28, and 180. We tested 'bond CSC' with 3.5% fluoride and no radio...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2015-390
更新日期:2016-01-01 00:00:00
abstract::Glass-ceramic powders with the oxide batch formulation 50wt%SiO2, 20wt%P2O5 and 30wt%CaO were prepared by the sol-gel process using tetraethoxysilane, calcium nitrate and phosphoric acid as raw materials. The obtained gels and powders were characterized by TG-DTA thermal analysis, FTIR analyses and XRD measurements. T...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.16.117
更新日期:1997-12-01 00:00:00
abstract::The aim of this in vitro study was to evaluate the pH value of intact and carious dentin in primary teeth using a pH-imaging microscope (SCHEM-100, HORIBA Ltd., Kyoto, Japan). Bucco-lingual cut sections of extracted human primary teeth, which had either mild or severe dentinal caries lesions, were placed on the pH-ima...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.23.628
更新日期:2004-12-01 00:00:00
abstract::The aim of this study was to evaluate the cytotoxicity of contemporary flowable and paste-like bulk-fill dental composites by using a real-time cell analysis. In the present paper, cytotoxicity levels of five flowable, five paste-like bulk-fill composite materials and one conventional flowable, one conventional paste-...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2018-336
更新日期:2020-01-31 00:00:00
abstract::The objective was to compare bond strengths of adhesives with/without thermocycling and to analyze the micromorphology of resindentin interfaces. Flat dentin surfaces were prepared and divided into eight groups to bond with four etch-and-rinse adhesives (Optibond FL, Adper Scotchbond Multi-Purpose, Optibond Solo Plus,...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2015-253
更新日期:2016-01-01 00:00:00
abstract::'Tooth-coloured' ProRoot MTA is an endodontic cement comprising an 80:20 wt% mixture of white Portland cement (WPC) and bismuth oxide. The setting reactions within this cement system are not currently well understood. Accordingly, this research monitors the early hydration chemistry of ProRoot MTA by X-ray diffraction...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2014-309
更新日期:2015-01-01 00:00:00
abstract::Sixteen alloys and five pure metals were used and the open circuit potentials (OCP) and the coupled potentials with titanium were measured in five kinds of solutions. All alloys and metals showed the maximum OCP in 1.3% lactic acid solution, and the minimum in 0.01% sodium sulfide solution. The coupled potential depen...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.20.75
更新日期:2001-03-01 00:00:00
abstract::The biaxial flexural strength and cyclic fatigue biaxial flexural strength of CAD/CAM ceramics polished with #220, 400, 600 and 1000 diamond pads were measured in an effort to determine the effect of surface roughness on fatigue behavior of dental ceramics. The surface roughness was improved after polishing with a sma...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.18.395
更新日期:1999-12-01 00:00:00
abstract::We investigated the effects of CO2 laser irradiation combined with acidulated phosphate fluoride (APF) application on the demineralization of enamel. APF gel was applied to the buccal enamel of human premolars and CO2 laser was applied. After the specimens were immersed in demineralization solution for 72 h, they were...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2014-225
更新日期:2015-01-01 00:00:00
abstract::This study evaluated the irrigation extrusion and smear layer (SL) removal of continuous ultrasonic irrigation (CUI). Forty root canals were shaped, embedded in warm sterile saline agar colored with 1% acid red, and distributed into four groups; three groups had the final irrigation sequence of sodium hypochlorite and...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2016-411
更新日期:2018-01-30 00:00:00
abstract::This study evaluated the influence of filling technique and curing mode on the microtensile bond strengths (MTBS) of composite cores to pulpal floor dentin. Access cavities of human molars with pulpal floor dentin were restored with a two-step self-etch adhesive system, Clearfil Liner Bond 2V and a composite core, Cle...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2009-104
更新日期:2010-10-01 00:00:00
abstract::Adhesion promoting monomers for precious metals, 2,3-epithiopropyl methacrylate (EP1MA), 4,5-epithiopentyl methacrylate (EP3MA), 9,10-epithiodecyl methacrylate (EP8MA), 10,11-epithioundecyl methacrylate (EP9MA), 9,10-epithiodecyl 4-vinylbenzoate (EP8VB), 2,3-epithiocyclohexyl methacrylate (EPCHMA), and 3,4-epithiobuty...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.26.29
更新日期:2007-01-01 00:00:00
abstract::This study assessed the effect of the resin-coating technique on the bond strength and internal adaptation of computer-aided design/computer-aided manufacturing (CAD/CAM)-fabricated inlays. Seventy-two mesio-occlusal-distal (MOD) cavities were prepared and distributed into 3 groups according to the resin-coating techn...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2019-309
更新日期:2020-12-03 00:00:00
abstract::The aim of this study was to evaluate the effect of resin infiltration on root caries induced by Streptococcus mutans biofilms. Human premolar specimens were divided to 5 groups: negative control (NC), Clearfil SE Bond (SEB), Icon-etch120s+Icon-infiltrant (HA120), Icon-etch10s+Icon-infiltrant (HA10) and K-etchant10s+I...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2016-229
更新日期:2017-03-31 00:00:00
abstract::This study investigated transformations of nickel-titanium wires using differential scanning calorimetry (DSC) and thermomechanical analysis (TMA) under tensile load (100 gf or 500 gf). Two nickel-titanium wires, 35°C Copper Ni-Ti and Nitinol SE, were selected. DSC analyses were performed between -90° and 100°C. Speci...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2010-196
更新日期:2011-01-01 00:00:00
abstract::This study evaluated and compared the influence of different supporting abutment models on the fracture loads of three-unit fixed dental prostheses (FDPs) fabricated from the following materials (n=24/material): (i) IPS e.max CAD-on, (ii) IPS e.max ZirCAD, and (iii) Telio CAD. Twelve FDPs of each group were adhesively...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2013-344
更新日期:2014-01-01 00:00:00
abstract::In tissue engineering, biodegradable polymer materials with both high biocompatibility and high strength are very important as scaffolds for long term use. Therefore, in this research, we tried to prepare the three types of poly(L-lactic acid) (PLLA)/calcium phosphate (CP) hybrid composite for a scaffold biomaterial. ...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2012-117
更新日期:2012-01-01 00:00:00
abstract::The purpose of this study was to analyze the ultrastructures and chemical compositions of precipitates formed on mineral trioxide aggregate (MTA; White ProRoot MTA) immersed in distilled water (DW) or phosphate buffered saline (PBS), based on the attribution that MTA's bioactivity and sealing ability are influenced by...
journal_title:Dental materials journal
pub_type: 杂志文章,随机对照试验
doi:10.4012/dmj.2009-133
更新日期:2010-10-01 00:00:00
abstract::The mechanical properties of resin-modified "hybrid" glass-ionomers, for both restorative and liner/base applications, were assessed by a flexural test and compared with those of conventional acid-base glass-ionomers. Flexural strength, flexural modulus, and the modulus of resilience were determined 30 minutes after m...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.14.109
更新日期:1995-12-01 00:00:00
abstract::The aim of this study was to investigate the diffusion of red-stained experimental GM primer and blue-stained dentin bonding agent into EDTA-conditioned dentin and the effect of GM priming on contraction gap formation. After GM priming at 0, 35, 70, or 100 vol%, marginal adaptation was evaluated by measuring the wall-...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2009-084
更新日期:2010-10-01 00:00:00
abstract::The purposes of this study were to examine the shock absorption capability of addition-cured silicone denture relining materials and the bonding strength of addition-cured silicone denture relining materials and a commercial mouthguard material to determine its applicability to mouthguard adjustment. Two addition-cure...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2015-378
更新日期:2016-01-01 00:00:00
abstract::This study investigated the anti-demineralization effects of surface pre-reacted glass-ionomer (S-PRG) filler-containing varnishes. Thirty-five bovine root specimens were divided into five treatment groups, with seven specimens each coated with 1) MI varnish (MIV), 2) F varnish (FV), 3) PRG varnish I (PV), 4) PRG varn...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2019-396
更新日期:2020-11-11 00:00:00
abstract::The aim of this study was to evaluate the pH at the surface of active or arrested carious dentin using a micro pH sensor, and to compare the relationship between different pH measurement techniques. Twenty extracted carious teeth were divided into two groups, active or arrested caries, according to predefined clinical...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.25.423
更新日期:2006-09-01 00:00:00
abstract::This study investigated the effects of storing impressions for 3 hours after spraying them with a disinfectant solution on dimensional change and deformation of maxillary edentulous stone models. Three brands of alginate impression materials, characterized by a small degree of contraction in 100% relative humidity, we...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2009-083
更新日期:2010-05-01 00:00:00