Hardness and Young's modulus of transparent dentin associated with aging and carious disease.

abstract：:High-power light-curing units have emerged that reduce the time of procedures in dental clinical work. However, patients sometimes complain of pain during the polymerization of composite resin. In this experiment, we investigated how differences in light-curing mode affect the temperature rise during composite resin p...

journal_title：Dental materials journal

authors： Hori M,Fujimoto K,Asakura M,Nagase Y,Mieki A,Kawai T

更新日期：2019-07-31 00:00:00

abstract：:The purpose of this study was to clarify the effect of silver nanoparticles on the behavior of subcritical crack growth (SCG) in dental porcelains. Prior to occurrence of fast fracture in dental porcelains, SCG occurs and leads to strength degradation over time. SCG in dental porcelains can be characterized by the str...

journal_title：Dental materials journal

authors： Fujieda T,Uno M,Ishigami H,Kurachi M,Kamemizu H,Wakamatsu N,Doi Y

更新日期：2013-01-01 00:00:00

abstract：:To clarify the mechanical properties of fiber-reinforced hybrid resin bridges, this study evaluated the influence of various bonding agents ((Modeling Liquid (ML), DE Resin (DE), Bell Bond (BE), Mega Bond (MG), Durafil Bond (DU), Fluoro Bond (FB), Mac-Bond (MC), EG Bond (EG), Unifill Bond (UN), Single Bond (SN)) impre...

journal_title：Dental materials journal

authors： Tsushima S,Gomi H,Shinya A,Yokoyama D,Vallittu PK,Shinya A

更新日期：2008-09-01 00:00:00

abstract：:The mechanical properties of polycarboxylate cements containing 20 mass% of four kinds of aluminoborate whiskers with different fiber lengths and diameters were evaluated. Bending strength of the cements increased with increase in fiber length, whereby the strength of the cement with the longest fiber was about two ti...

journal_title：Dental materials journal

authors： Kurata S,Umemoto K

更新日期：2008-07-01 00:00:00

abstract：:The purpose of this study was to determine the optimal condition for fabricating accurate crowns efficiently using an internet-based CAD/CAM system. The influences of three different CAD/CAM restorative materials (titanium, porcelain, and composite resin) and three different step-over scanning distances (0.01 mm, 0.11...

journal_title：Dental materials journal

authors： Tomita S,Shin-ya A,Gomi H,Shin-ya A,Yokoyama D

更新日期：2007-07-01 00:00:00

abstract：:The purpose of this study was to evaluate the effect of various incremental filling techniques on adhesion between composite and cavity floor using light-cured resin composite. Black ABS resin and hybrid resin composite were used as mold materials--instead of dentin--for the preparation of cavities, and standardized t...

journal_title：Dental materials journal

authors： Chikawa H,Inai N,Cho E,Kishikawa R,Otsuki M,Foxton RM,Tagami J

更新日期：2006-09-01 00:00:00

abstract：:To evaluate the cytotoxicity of resin cements on dental pulp-derived cells (bDPCs), Bifix QM (BQM), Choice 2(C2), RelyX U200(RU200), Maxcem Elite(ME), and Multilink Automix(MA) were tested. The materials were incubated in DMEM for 72 h. A real-time cell analyzer was used to evaluate cell survival. The statistical anal...

journal_title：Dental materials journal

authors： Arslan Malkoç M,Demir N,Şengün A,Bozkurt ŞB,Hakki SS

更新日期：2015-01-01 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

authors： Li Q,Coleman NJ

更新日期：2015-01-01 00:00:00

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 ...

journal_title：Dental materials journal

authors： Gungor H,Gundogdu M,Alkurt M,Yesil Duymus Z

更新日期：2017-03-31 00:00:00

abstract：:This study evaluated the effect of resin coating (COA) on dentin bond strength (BS) of five resin cements (RC). Ten groups were tested, according to RC and COA combinations. RCs were applied onto prepolymerized resin discs, which were bonded to dentin surfaces. Teeth were stored in water for 24 h, subjected to 5,000 t...

journal_title：Dental materials journal

authors： Giannini M,Takagaki T,Bacelar-Sá R,Vermelho PM,Ambrosano GM,Sadr A,Nikaido T,Tagami J

更新日期：2015-01-01 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

authors： Fischer J,Stawarczyk B,Tomic M,Strub JR,Hämmerle CH

更新日期：2007-11-01 00:00:00

abstract：:The aim of this study was to clarify the effect of heating rate on the development of both transient and residual stresses in investment molds. Solid, cylindrical, gypsum-based molds were modeled and theoretical calculations made of temperature distributions with a constant heating rate. These calculations used experi...

journal_title：Dental materials journal

authors： Asaoka K,Tesk JA

更新日期：1996-12-01 00:00:00

abstract：:Resin coating materials have been used for composite resin or provisional restoration in order to prevent plaque accumulation on their surfaces. However, it is not clear whether the coating materials influence attachment of periodontal bacteria. Therefore, we investigated the effect of resin coating materials on the a...

journal_title：Dental materials journal

authors： Kumada A,Matsuka Y,Mine A,Ono M,Uehara J,Sonoi N,Ito T,Takashiba S,Kuboki T

更新日期：2012-02-03 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

authors： Nakayama M,Ando N

更新日期：2001-03-01 00:00:00

abstract：:The objective of the study was to compare 1) the mean micro-shear bond strength and 2) failure mode of cements to metals in nonenclosed and mold-enclosed specimens. Specimens were prepared in mold-enclosed and non-enclosed formats from two RMGIC's and a self-adhesive resin-cement. 3-way ANOVA analysis and Tukey post h...

journal_title：Dental materials journal

authors： Cheetham JJ,Palamara JE,Tyas MJ,Burrow MF

更新日期：2013-01-01 00:00:00

abstract：:This study examined the effect of air abrasion and thermocycling on the adaptation and shear bond strength, of composite resin bonded to dentin using etch-and-rinse and self-etch resin adhesives. Confocal microscopy showed both adhesives closely adapted to dentin and a significantly (p<0.001) greater number of resin t...

journal_title：Dental materials journal

authors： Freeman R,Varanasi S,Meyers IA,Symons AL

更新日期：2012-01-01 00:00:00

abstract：:The effects of monomer structure on the mechanical properties of visible light-cured composite resins based on the seven types of aromatic dimethacrylates were investigated. The results of this study suggested that the mechanical properties of the composite resins were dependent upon the chemical structure of the dime...

journal_title：Dental materials journal

authors： Kawaguchi M,Fukushima T,Horibe T

更新日期：1989-06-01 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

authors： Kawaguchi T,Shimizu H,Lassila LV,Vallittu PK,Takahashi Y

更新日期：2011-01-01 00:00:00

abstract：:The efficacy of four commercial and two experimental dentin bonding systems was examined by observing the cavity adaptation of commercial light-cured resin composites restored in the dogs scheduled to be sacrificed after a medical experiment. Before being sacrificed, a cylindrical class V cavity was prepared in each c...

journal_title：Dental materials journal

authors： Tani C,Itoh K,Ohba M,Tada K,Manabe A,Hisamitsu H,Wakumoto S

更新日期：1998-09-01 00:00:00

abstract：:This study was carried out to investigate the influences of elastic moduli of the dowel-core combination on the stress distribution in the root by the use of 2-dimensional finite element analysis. The peak stress at the dowel-cement interface was influenced strongly by a change of elastic modulus of the post (from 20,...

journal_title：Dental materials journal

authors： Ukon S,Moroi H,Okimoto K,Fujita M,Ishikawa M,Terada Y,Satoh H

更新日期：2000-03-01 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

authors： Serefoglu B,Piskin B

更新日期：2017-09-26 00:00:00

abstract：:Three commercially available porcelains bonded to titanium were evaluated to determine the weakest zone of the titanium-porcelain bonding structures. Tensile bond tests were performed for these specimens (NO, DU, and VI) and for Ni-Cr alloy-porcelain bonding samples that served as controls. The maximum bond strengths ...

journal_title：Dental materials journal

authors： Kannari Y,Endo K,Ida Y,Ochi M,Ohno H

更新日期：2014-01-01 00:00:00

abstract：:The microstructure and homogeneity of three commercial dentin and incisal unfired porcelain frits (one conventional and two ultra-low fusing types, fused-to metal were analyzed by X-ray diffractometry, scanning electron microspectroscopy, and wavelength- and energy dispersive X-ray microspectroscopy. The average conte...

journal_title：Dental materials journal

authors： Ban S,Matsuo K,Mizutani N,Iwase H,Kani T,Hasegawa J

更新日期：1998-12-01 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

authors： Ranjkesh B,Isidor F,Dalstra M,Løvschall H

更新日期：2016-01-01 00:00:00

abstract：:The aim of this study was to compare the shear bond strengths (SBS), failure modes (adhesive, cohesive, or mixed), and marginal microleakage occurrence of conventional resin (CR)-based, glass ionomer (GI)-based, and self-adhesive resin (SAR)-based fissure sealants with or without prior phosphoric acid (PA) etching. Fi...

journal_title：Dental materials journal

authors： Simsek Derelioglu S,Yilmaz Y,Celik P,Carikcioglu B,Keles S

更新日期：2014-01-01 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

authors： Niizuma Y,Kobayashi M,Toyama T,Manabe A

更新日期：2020-12-03 00:00:00

abstract：:The effects of dissolved-oxygen concentration and fluoride concentration on the corrosion behaviors of commercial pure titanium, Ti-6Al-4V and Ti-6Al-7Nb alloys and experimentally produced Ti-0.2Pd and Ti-0.5Pt alloys were examined using the corrosion potential measurements. The amount of dissolved Ti was analyzed by ...

journal_title：Dental materials journal

authors： Nakagawa M,Matsuya S,Udoh K

更新日期：2002-06-01 00:00:00

abstract：:This study compared differences in discoloration and dissolution in several titanium alloys with immersion in peroxide- or fluoride-containing solution. Commercially pure titanium (CP-Ti) and six titanium-based alloys were used: Ti-0.15Pd, Ti-6Al-4V, Ti-7Nb-6Al, Ti-55Ni, Ti-10Cu, and Ti-20Cr. Two test solutions were p...

journal_title：Dental materials journal

authors： Noguchi T,Takemoto S,Hattori M,Yoshinari M,Kawada E,Oda Y

更新日期：2008-01-01 00:00:00

abstract：:The bactericidal efficacy of 1.00-4.50% glycine-type amphoteric surfactant (Gly) was evaluated by measuring its microorganism removal rate in denture plaque. Physical and mechanical properties such as surface roughness, color difference, and bending strength of two different denture base resins were determined before ...

journal_title：Dental materials journal

authors： Hashiguchi M,Nishi Y,Kanie T,Ban S,Nagaoka E

更新日期：2009-05-01 00:00:00

abstract：:A new method of all-ceramic production using alumina coping has been developed. The present study investigates the influence of secondary firing (glass infiltration firing) conditions. Samples of porcelain build-up without secondary firing were also assessed. The suitability of coping that included secondary firing wa...

journal_title：Dental materials journal

authors： Masuda T,Kakimoto K,Takahashi K,Komasa Y

更新日期：2016-01-01 00:00:00