Evaluation of brittleness of porcelain fused to pure titanium by fracture toughness, hardness and fracture energy.

abstract：:The purpose of this study was to characterize the surface damages of zirconia by Nd:YAG dental laser irradiation through a systematic evaluation of the associated microstructural changes. Disk specimens of yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) and ceria-stabilized zirconia/alumina nanocomposite (C...

journal_title：Dental materials journal

authors： Noda M,Okuda Y,Tsuruki J,Minesaki Y,Takenouchi Y,Ban S

更新日期：2010-10-01 00:00:00

abstract：:The aim of this review is to evaluate the long-term effectiveness of calcium silicate-based cement (CS) and calcium hydroxide (CH) for direct pulp capping (DPC) to human pulp-exposed permanent teeth. An electronic search and manual search were performed on 21 June 2019. Long-term clinical and radiographic evaluations ...

journal_title：Dental materials journal

authors： Matsuura T,Ziauddin SM,Kawata-Matsuura VKS,Sugimoto K,Yamada S,Yoshimura A

更新日期：2020-10-01 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

authors： Nasu Y,Itoh K,Tani C,Hisamitsu H

更新日期：2010-10-01 00:00:00

abstract：:Different types of calcium phosphate compounds are commercially available for medical and dental applications as bone substitute materials. Biological apatites contain several kinds of minor elements such as carbonate (CO3), magnesium (Mg), and fluoride (F) in enamel, dentin, and bone. It has been shown that F ion and...

journal_title：Dental materials journal

authors： Inoue M,Nagatsuka H,Tsujigiwa H,Inoue M,LeGeros RZ,Yamamoto T,Nagai N

更新日期：2005-09-01 00:00:00

abstract：:The effect of acidic fluoride solution on NiTi arch wires was examined by testing crystal structure, tensile strength, morphology after fracture, and element release from wire under four different test solutions after 1 or 3 d immersion. Three-day immersion in a 0.2%/pH 4 solution did not form any new crystal structur...

journal_title：Dental materials journal

authors： Kwon YH,Cheon YD,Seol HJ,Lee JH,Kim HI

更新日期：2004-12-01 00:00:00

abstract：:This study aimed to introduce a procedure for determining the bilinear elastic moduli (E1 and E2) of the periodontal ligament for a mathematical tooth model to analyse stress in the mandible. The bone and tooth morphology were scanned from a dry skull and an extracted intact tooth, respectively, and reconstructed in a...

journal_title：Dental materials journal

authors： Borák L,Florian Z,Bartáková S,Prachár P,Murakami N,Ona M,Igarashi Y,Wakabayashi N

更新日期：2011-01-01 00:00:00

abstract：:This study determined the discoloration of five CAD/CAM resins, four manually polymerized resins, and glass-ceramic as control group. Specimens were divided into three groups (N=300, n=30) to be stored in coffee, black tea and red wine (n=10). The discoloration was measured using a spectrophotometer after 1, 7, 29, 90...

journal_title：Dental materials journal

authors： Stawarczyk B,Sener B,Trottmann A,Roos M,Ozcan M,Hämmerle CH

更新日期：2012-01-01 00:00:00

abstract：:Besides micro-mechanical interlocking through hybrid-layer formation, self-etch adhesives may benefit from additional chemical interaction between the functional monomer and residual hydroxyapatite. One-step adhesives are commonly associated with lower bonding effectiveness, which must be attributed in part to the dis...

journal_title：Dental materials journal

authors： Van Meerbeek B,Van Landuyt K,De Munck J,Hashimoto M,Peumans M,Lambrechts P,Yoshida Y,Inoue S,Suzuki K

更新日期：2005-03-01 00:00:00

abstract：:In this study, effects of the degree of dissociation of acids on the hydrolysis rate of methoxy group in γ-methacryloxypropyltrimethoxysilane (γ-MPS) and the adsorption characteristics of γ-MPS on ceramic surfaces were studied using acetic, phosphoric, and hydrochloric acids. Hydrolytic stability of γ-MPS adsorption l...

journal_title：Dental materials journal

authors： Aoki N,Kimoto S,Tanimura H,Nishiyama N,Aida M

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：:This study investigated hydrogen peroxide (H2O2) concentration of two home bleaching gels, in their dispensing syringes and their degradation in vivo in intraoral bleaching trays. Two bleaching gels were studied, 7.5% hydrogen peroxide (HP) and 20% carbamide peroxide (CP). The concentration of H2O2 was determined in d...

journal_title：Dental materials journal

authors： Alonso De La Peña V,Rodriguez Carreira A,Corral Aneiros R,López Ratón M,Guitián Rivera F

更新日期：2013-01-01 00:00:00

abstract：:This study investigated the changes in hardness and Young's modulus of the transparent layer of dentin associated with aging and the carious process. Eighteen extracted human molars with or without coronal caries were used in this study. The normal teeth were divided into two groups by age, and the carious teeth were ...

journal_title：Dental materials journal

authors： Zheng L,Nakajima M,Higashi T,Foxton RM,Tagami J

更新日期：2005-12-01 00:00:00

abstract：:The possibility of the segregation under solidification process using a centrifugal casting machine was investigated using an electron probe microanalyzer with elemental distribution map, line analysis and quantitative analysis. When a very small quantity of platinum was added to local molten titanium during the casti...

journal_title：Dental materials journal

authors： Watanabe K,Okawa S,Kanatani M,Nakano S,Miyakawa O,Kobayashi M

更新日期：1996-12-01 00:00:00

abstract：:Finite element analysis was performed to evaluate stress distribution in maxillary central incisors treated endodontically and restored with a post and an all-ceramic crown. Tensile stress at tooth root was analyzed using two-dimensional finite element models with different post diameters and lengths. One post length ...

journal_title：Dental materials journal

authors： Nakamura T,Ohyama T,Waki T,Kinuta S,Wakabayashi K,Mutobe Y,Takano N,Yatani H

更新日期：2006-03-01 00:00:00

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：:Multi-purpose bonding performance of three kinds of newly synthesized phosphonic acid monomers was investigated. Methacryloxyalkyl or acryloxyalkyl phosphonoacetates of 6-MHPA, 6-AHPA, 10-MDPA were synthesized in 42.8-51.9% yields with a light yellow viscous liquid, and identified as new compounds by 1H NMR, IR, and e...

journal_title：Dental materials journal

authors： Ikemura K,Tay FR,Nishiyama N,Pashley DH,Endo T

更新日期：2007-01-01 00:00:00

abstract：:This study investigated the effect of bulk-fill composites on proximal contact tightness (PCT) of composite restorations using different matrix systems. 150/standardized-MO-ivorine cavity preparations were divided into 5 groups; Smart Dentin Replacement (SDR), SonicFill (SF), Tetric EvoCeram Bulk-Fill (TEB), G-ænial U...

journal_title：Dental materials journal

authors： El-Shamy H,Sonbul H,Alturkestani N,Tashkandi A,Loomans BA,Dörfer C,El-Badrawy W

更新日期：2019-02-08 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 aim of this study was to investigate and compare the radio-opacity of core materials for all-ceramic restorations, such as zirconia (NANOZR and Y-TZP) and alumina, against commercially pure titanium (cpTi) and aluminum. X-ray images were taken under general settings using an X-ray film. The X-ray film images were ...

journal_title：Dental materials journal

authors： Okuda Y,Noda M,Kono H,Miyamoto M,Sato H,Ban S

更新日期：2010-01-01 00:00:00

abstract：:The aim of the present study was to examine whether interconnected porous hydroxyapatite ceramics (IP-CHA) could be used as bone substitute for implant treatment in reconstructive surgery. We firstly assessed if surround of the titanium surface placed into granular or block-type IP-CHA can observe new bone formation i...

journal_title：Dental materials journal

authors： Minami M,Takechi M,Ohta K,Ohta A,Ninomiya Y,Takamoto M,Fukui A,Tada M,Kamata N

更新日期：2013-01-01 00:00:00

abstract：:The three-dimensional dynamic movement of the abutment tooth was successfully analyzed on a simulation model utilizing the mandibular kinesiography. When the unilateral free-end denture retained by the RPA, RPI or Aker's clasp was subjected to various directions of loads, the abutment tooth was inclined mainly by the ...

journal_title：Dental materials journal

authors： Morikawa M,Masumi S,Kido H,Toyoda S,Kozono Y

更新日期：1989-06-01 00:00:00

abstract：:This study evaluated the influence of an aqueous propolis-based solution (PROP) on gap formation and bond strength of posts bonded to root canal dentin using resin cements. Endodontically-treated bovine incisors received different irrigation protocols: 1) 2.5% sodium hypochlorite (NaOCl)/17% EDTA/NaOCl; 2) saline solu...

journal_title：Dental materials journal

authors： Matochek MHM,Tomaz PLS,Oliveira TS,Polassi MR,Alonso RCB,Scremin FM,Sauro S,Marcucci MC,D'Alpino PHP

更新日期：2020-06-05 00:00:00

abstract：:The effect of warm air-blowing on the sealing ability of two one-bottle and one two-bottle silane-containing universal adhesives (UAs) applied to lithium disilicate ceramics (LDS) was evaluated. Tapered cavities prefabricated in LDS blocks (IPS e.max CAD) were treated by the adhesives, air-blown either with normal air...

journal_title：Dental materials journal

authors： Kaykhine P,Tichy A,Abdou A,Hosaka K,Foxton RM,Sumi Y,Nakajima M,Tagami J

更新日期：2020-10-24 00:00:00

abstract：:The aim was to evaluate the effect of different zirconia discontinuous fiber fractions on radiopacity and other selected properties of glass discontinuous fiber-reinforced flowable composite (Exp-SFRC). Exp-SFRC was prepared by mixing 30 wt% of resin-matrix and 45 wt% of particulate-fillers to 25 wt% of various weight...

journal_title：Dental materials journal

authors： Garoushi S,Vallittu P,Lassila L

更新日期：2019-03-31 00:00:00

abstract：:The cream type of denture adhesives after use cannot be easily removed from oral mucosa and have the potential risk to change the oral flora. The effects of the temperature-responsive hydrogel Pluronic F-127 (PF) on the complex viscosity of denture adhesives were evaluated. Carboxy methylcellulose (CMC) mass fractions...

journal_title：Dental materials journal

authors： Zhao H,Akiba N,Tanimoto H,Yoshizaki T,Yalikun K,Minakuchi S

更新日期：2016-01-01 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

authors： Savas S,Botsali MS,Kucukyilmaz E,Sari T

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

authors： Xie F,Wei X,Li Q,Zhou T

更新日期：2016-01-01 00:00:00

abstract：:The corrosion behavior of three Ni-Ti alloys with compositions as commercial super-elastic orthodontic wires was investigated using polished plate specimens. Corrosion resistance was estimated by potentiodynamic polarization measurement in 0.9% NaCl and 1% lactic acid solutions and analysis of released metals by atomi...

journal_title：Dental materials journal

authors： Iijima M,Endo K,Ohno H,Mizoguchi I

更新日期：1998-03-01 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

authors： Iijima M,Ohta M,Brantley WA,Naganishi A,Murakami T,Muguruma T,Mizoguchi I

更新日期：2011-01-01 00:00:00

abstract：:We examined the mold filling capacity and microhardness of two industrial 1% Fe titanium alloys: Super-TIX800 (Nippon Steel Corp.) (Fe: 0.910%, O: 0.370%, N: 0.005%) and Super-TIX800N (Nippon Steel Corp.) (Fe: 0.960%, O: 0.300%, N: 0.041%). Two wedge-shaped acrylic patterns (with 30 degrees or 15 degrees angles) were ...

journal_title：Dental materials journal

authors： Sato H,Komatsu M,Miller B,Shimizu H,Fujii H,Okabe T

更新日期：2004-06-01 00:00:00