Abstract:
:This study investigated the durability, especially the nonwaterdegradable qualities, of experimental light-cured composite resin containing barium-borosilicate glass filler. For this purpose, Bis-GMA, a typical component of base monomer in conventional composite resin, was replaced by Bis-GMA-F which is water-repellent. After over 20,000 thermal cycles, the composite resin containing Bis-GMA retained only 60 approximately 70% of its initial compressive, diametral tensile, flexural strength and flexural elastic modulus. However, the experimental composite resin containing Bis-GMA-F as a resin matrix showed no loss of compressive, diametral tensile strength or flexural elastic modulus, although flexural strength showed some deterioration. It was considered that the difference between Bis-GMA-F and Bis-GMA, as resin matrix, caused variation in the characteristics of water sorption.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Tanaka J,Inoue K,Masamura H,Matsumura K,Nakai H,Inoue Kdoi
10.4012/dmj.12.1subject
Has Abstractpub_date
1993-06-01 00:00:00pages
1-11issue
1eissn
0287-4547issn
1881-1361journal_volume
12pub_type
杂志文章abstract::The use of a single metal for all restorations would be necessary because it protects against metal corrosion caused by the contact of different metals. For this "one-metal rehabilitation" concept, non-alloyed commercially pure (CP) titanium should be used for all restorations. Titanium frameworks have been cast and u...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2017-137
更新日期:2017-09-26 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::This study examined the ability of a photocatalyst mixed in a denture base resin to decompose organic substances which adhered to the denture base resin surface. The photocatalyst was mixed with denture base resin at concentrations of 0, 5, 10, and 15% (w/w). Decomposition test, bending test, and surface roughness mea...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.27.179
更新日期:2008-03-01 00:00:00
abstract::Thermal misfit is deemed as one reason for the chipping of veneered zirconia restorations. Aim of the present study was to assess the effect of thermal misfit on the fracture load of veneered zirconia frameworks and to evaluate the applicability of a universal veneering ceramic for both zirconia and titanium framework...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.26.766
更新日期:2007-11-01 00:00:00
abstract::This study evaluated the effect of different adhesive protocols on the shear bond strength (SBS) of bulk-fill resin composite repaired with bulk-fill or conventional composite. Cylindrical bulk-fill resin composite specimens were prepared and allocated into groups according to the bonding strategy: no treatment, Silan...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2018-291
更新日期:2020-03-31 00:00:00
abstract::The aim of this study was to evaluate temperature changes in the pulp chamber during polymerization of four different pulp-capping materials using a LED-light-curing-unit in the contact and noncontact positions. A pulpal circulation mechanism was simulated to measure increases in temperature in four pulp-capping mater...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2013-274
更新日期:2014-01-01 00:00:00
abstract::This study evaluated the biomineralization and dentinal tubules occlusion abilities of the carboxyl-terminated polyamidoamine dendrimer (PAMAM-COOH) on human demineralized dentin in vivo at different time points. Demineralization dentin model with and without treated with PAMAM-COOH were sutured to the interior side o...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2015-209
更新日期:2016-01-01 00:00:00
abstract::The effectiveness of a barbituric acid/copper (II) chloride initiator system in dentin was examined in terms of the effects of barbituric acid structures and dentin conditioners on bond strength. Curing times and tensile bond strengths to bovine dentin were measured for PMMA/MMA resins in conjunction with initiators c...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.14.221
更新日期:1995-12-01 00:00:00
abstract::The aim of this study was to investigate the effect of three metal priming agents on the bond strength of adhesive resin cement to Silver-Zinc-Tin-Indium (Ag-Zn-Sn-In) alloy and pure Ag, Zn, Sn, and In. The specimens were air-abraded with alumina and then primed with one of three metal priming agents: V-Primer, Esteni...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2017-139
更新日期:2018-03-30 00:00:00
abstract::Enamel demineralization is one of the most undesired side effects of fixed orthodontic treatment, which will lead to white spot lesions (WSLs) on tooth surfaces. The development of WSLs is due to prolonged accumulation of bacterial plaque and associated acid production. Self-etching adhesives have been used in orthodo...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2017-286
更新日期:2018-07-29 00:00:00
abstract::Improved osseointegration of dental implants is imperative in clinic. Effect of doxycycline on promoting bone formation after implant placement was expected due to its inhibitory properties on inflammation and osteoclastogenesis. To evaluate new bone formation on the hydroxyapatite (HA)-coated implant surface, which w...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2017-007
更新日期:2018-01-30 00:00:00
abstract::The aim of this in vitro study was to evaluate the effects of desensitizer pre-treatment on in-office bleaching using an artificial discoloration tooth model. The stained specimens were divided into four groups (n=10); without application (Control group), Shield Force plus (SF group), UltraEz (UE group) and Teeth Mate...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2018-129
更新日期:2019-10-02 00:00:00
abstract::This study compared bovine serum albumin (BSA) adsorption onto octacalcium phosphate (OCP) materials prepared from two wet preparations in the absence (w-OCP) and presence (c-OCP) of gelatin. Raman spectroscopy was used to analyze the BSA adsorption onto OCPs in a 150 mM Tris-HCl buffer containing 0.5 mM calcium and i...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2019-250
更新日期:2020-09-29 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 investigated the effect of a coating material containing S-PRG fillers on the demineralization of bovine enamel and dentin, by measuring changes in the transmitted ultrasonic velocity. Bovine enamel and dentin specimens with and without coating (n=6 for each condition) were cut into blocks, immersed in 0.1 ...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2012-153
更新日期:2012-01-01 00:00:00
abstract::The purpose of this study was to investigate the effects of the location and orientation of dentinal tubules in the tooth on tensile strengths of the dentin. Dumbbell-shaped specimens of 12 groups from various locations and dentinal tubule orientations were prepared. The tensile test was performed in distilled water a...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.21.32
更新日期:2002-03-01 00:00:00
abstract::The aim of this study was to investigate the bond durability of heat-polymerized denture base resin to cast CP Ti and Co-Cr alloy. The alloy specimens were divided into five groups: 1) airborne-particle abraded with 50 µm alumina (SAND), 2) Rocatec tribochemical silica coating system (RO), 3) air-abraded followed by a...
journal_title:Dental materials journal
pub_type: 杂志文章,随机对照试验
doi:10.4012/dmj.2010-089
更新日期:2011-01-01 00:00:00
abstract::The purpose of this study was to propose a new numerical modeling of the glass fiber cloth reinforced denture base resin (GFRP). The proposed model is constructed with an isotropic shell, beam and orthotropic shell elements representing the outmost resin, interlaminar resin and glass fiber cloth, respectively. The pro...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.21.105
更新日期:2002-06-01 00:00:00
abstract::The purpose of this study was to evaluate the effects of acid-etched titanium on the biological responses of osteoblast-like MC3T3-E1 cells. Four types of treatments (polishing, sandblasting, concentrated H2SO4 etching, and concentrated H2SO4 etching with vacuum firing) were carried out on the surfaces of commercially...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.27.415
更新日期:2008-05-01 00:00:00
abstract::The aim of the present study was to measure various mechanical properties of acrylic denture base resins, including flexural modulus, flexural strength, fracture toughness, Barcol and Vickers hardness and their related properties, and to investigate correlations between different mechanical properties. Resin specimens...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2011-205
更新日期:2012-02-03 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::Quaternary ammonium compounds (QACs) have been used widely in medicine, owing to their antimicrobial properties. They also have strong permeability, stable performance, low skin irritation, low toxicity, low corrosion, lasting biological effects and so on, comparing with other antimicrobial agents. At the end of last ...
journal_title:Dental materials journal
pub_type: 杂志文章,评审
doi:10.4012/dmj.2017-096
更新日期:2018-03-30 00:00:00
abstract::This study aimed to evaluate cyclic fatigue resistance and bending properties and torque/force generation of WaveOne Gold (WOG) Primary in comparison with WaveOne (WO) Primary and Reciproc (RE) R25. A cyclic fatigue test revealed that the WOG Primary took significantly longer time to fracture compared with the WO Prim...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2018-203
更新日期:2019-06-01 00:00:00
abstract::The effect of etching for 90 s with low concentrations (0.5, 1.0, 2.0, 3.0, 3.5, and 4.0%) of hydrofluoric acid (HF) on the adhesiveness of computer-aided design/computer-aided manufacturing (CAD/CAM) resin blocks [CERASMART (CS), SHOFU BLOCK HC (HC), KATANA AVENCIA Block(KA), and VITA ENAMIC (EN)] was investigated. E...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2018-398
更新日期:2020-12-03 00:00:00
abstract::The effects of desensitizer, disinfectant, saliva, blood, and hydrogen peroxide on the tensile bond strength between adhesive and ceramic as well as between adhesive and dentin were examined. Sixty 7x3 mm pressed ceramic discs of IPS e.max were fabricated and randomly assigned to six groups of different dentin surface...
journal_title:Dental materials journal
pub_type: 杂志文章,随机对照试验
doi:10.4012/dmj.2009-074
更新日期:2010-08-01 00:00:00
abstract::We evaluated whether the pre-treatment of radicular dentin by ED Primer containing different concentrations of chlorhexidine can improve the bond durability of fiber post to radicular dentin. Experimental ED primers containing different concentrations of chlorhexidine (0%, 0.5% and 1.0%) were prepared. Thirty extracte...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2012-134
更新日期:2013-01-01 00:00:00
abstract::Temperature dependencies of thermal expansion coefficients for the alloys of Pd-Ag, Pd-Cu and Pd-Co binary systems were measured at temperatures up to 900 degrees C, with heating and cooling rates of 5 degrees C/min. The coefficient of thermal expansion of alloys with no transformation in the temperature range of inte...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.9.47
更新日期:1990-06-01 00:00:00
abstract::Cyclic torsional loading tests were carried out in the laboratory using various implant systems, in order to clarify differences between the systems in loosening of abutment screws. Six samples from six commercially available abutment systems were used, giving a total of 36 samples. Four of the systems used internal c...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2015-023
更新日期:2015-01-01 00:00:00
abstract::The aim of this investigation was to compare the cleaning and shaping efficiency of Self-adjusting file and Protaper, and to assess the correlation between root canal curvature and working time in mandibular molars using micro-computed tomography. Twenty extracted mandibular molars instrumented with Protaper and Self-...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2016-255
更新日期:2017-09-26 00:00:00
abstract::Oral bacteria adhered to dental material surfaces are known to cause various oral diseases. This study aimed to develop a highsensitive and non-radioisotopic fluorescence dye method for quantification of oral bacteria (Streptococcus, Actinomyces and Veillonella) adhered to denture material surfaces. The amount of adhe...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2013-060
更新日期:2013-01-01 00:00:00