Article
Chemistry, Physical
Juri Saruta, Ryotaro Ozawa, Kosuke Hamajima, Makiko Saita, Nobuaki Sato, Manabu Ishijima, Hiroaki Kitajima, Takahiro Ogawa
Summary: PMMA-TBB exhibits superior biocompatibility over PMMA-BPO bone cements for at least seven days post-polymerization, with higher cell attachment, proliferative activity, and differentiation markers. The presence of PMMA-TBB results in lower cytotoxicity and a rapid reduction in cytotoxicity compared to PMMA-BPO.
Article
Dentistry, Oral Surgery & Medicine
Haruto Hiraba, Hiroyasu Koizumi, Hiroshi Nogawa, Kosuke Takehana, Takayuki Yoneyama, Hideo Matsumura
Summary: This study investigated the effect of MDP in MMA monomer on the adhesion of TBB-initiated resins to human enamel. The results showed that MDP/MMA-TBB resins exhibited better bond durability to enamel, and this effect was enhanced with phosphate treatment.
DENTAL MATERIALS JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
M. Koko, T. Takagaki, N. E. A. Abd El-Sattar, J. Tagami, A. Abdou
Summary: This study assessed the bond strength and chemical interaction of different primers to alumina-blasted zirconia ceramic, and found that MDP-salt primer showed the highest tensile bond strength and improved bonding performance to resin cement.
JOURNAL OF DENTAL RESEARCH
(2022)
Article
Polymer Science
Yulia Kuznetsova, Ksenya Gushchina, Karina Sustaeva, Alexander Mitin, Marfa Egorikhina, Victoria Chasova, Lyudmila Semenycheva
Summary: Graft gelatin and poly(methyl methacrylate) copolymers with cross-linked structure were successfully synthesized in the presence of the tributylborane-2,5-di-tert-butyl-p-benzoquinone system. Compared with other initiating systems, this system exhibited a better cross-linking structure and showed high regenerative potential.
Article
Chemistry, Multidisciplinary
Dariusz W. Szczepanik
Summary: In this study, the first thorium-thorium bond in a crystalline cluster prepared under normal experimental conditions was reported. The presence of two delocalized paired electrons and a sigma-aromatic three-center two-electron bond in the isolated actinide cluster was confirmed. However, further investigation revealed that the previously observed inelastic scattering bands attributed to thorium-thorium vibrations actually represented the combination of Th-Cl stretching and Th-Cl-Th bending modes, establishing the existence of an unprecedented multicenter charge-shift bonding structure.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Chemical
Ozge Demir, Asli Gok, Hasan Uslu, Sah Ismail Kirbaslar
Summary: In this study, the recovery of cis,cis-Muconic acid was conducted using reactive extraction method with different extractants and organic diluents. Important extraction parameters were determined and the results were interpreted using mass action law model. Thermodynamic studies were carried out to estimate the process. The number of theoretical stages for designing a counter-current liquid-liquid extraction column was also assessed.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Pharmacology & Pharmacy
Yunpeng Wang, Zhi Cheng, Huan Zhang, Shuaiting Li, Yiming Pan, Weiyang Zhang, Siyuan Huang, Xiwen He, Fa Zou, Zhi Yuan, Wenhua Yan, Huizhe Huang
Summary: In this study, the researchers found that exposure to Tri-n-butyl phosphate (TnBP) had detrimental effects on the regenerative process of zebrafish larvae. It led to a decrease in neutrophil count and chemotaxis, a reduction in reactive oxygen species levels, dysregulation of gene expression related to fin regeneration, upregulation of inflammatory factors, and inhibition of regenerative area. TnBP exposure displayed immunotoxicity and decreased oxidative stress in injured zebrafish larvae.
TOXICOLOGY AND APPLIED PHARMACOLOGY
(2022)
Article
Materials Science, Multidisciplinary
B. N. Mohanty, Pradyumna Kumar Parida, C. Abinash Bhuyan, T. N. Beegam Rumana, Kancharana Laxmi, Hrudananda Jena, D. Ponraju
Summary: This paper investigates the adsorption behavior of ruthenium on Tri-n-butyl phosphate functionalized Multi Walled Carbon Nanotubes (MWCNTs-COO-TBP) and characterizes the adsorbent through various spectroscopic and microscopic techniques. The results show that the adsorbent has good adsorption capacity and compatibility.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Oncology
Man Zhao, Yaqi Zheng, Jia-Feng Zhang, Xing Ou, Xing Gao, Bao Zhang, Yang Cao
Summary: Treating the adhesive surface with porcelain sintering can improve the bonding strength between zirconia ceramics and RelyX Unicem Cement, especially when used in combination with silane coupling agents. The two types of silane coupling agents, Monobond-S and Clearfil Repair, can both enhance the bonding strength between zirconia and resin cement, with Clearfil Repair being more effective. Thermal cycling has a significant negative impact on the shear bond strength between zirconia and RelyX Unicem Cement, but Clearfil Repair helps improve the durability of zirconia bonding strength.
ANNALS OF TRANSLATIONAL MEDICINE
(2022)
Article
Chemistry, Physical
Maher Saeed Hajjaj, Saeed Jamaan Alzahrani
Summary: This study evaluated the effect of different cleaning methods on the shear bond strength of resin cement to contaminated zirconia specimens. The application of ceramic primer before contamination did not preserve the bond strength, while cleaning the contaminated surface with hydrofluoric acid or KATANA(TM) Cleaner improved the bond strength.
Article
Chemistry, Physical
Li-Li Kang, Shu-Fen Chuang, Chia-Ling Li, Jui-Che Lin, Ting-Wen Lai, Ching-Cheng Wang
Summary: This study successfully enhanced the bond strength and durability of resin cements to zirconia through atmospheric-pressure oxygen plasma-aided silicatization.
Article
Chemistry, Physical
Mani Lal Singh
Summary: This study conducted a thermodynamic analysis of density and viscosity data of binary liquid mixtures of tri-iso-amyl phosphate and n-hexane (or n-dodecane) obtained through accurate measurement. The study revealed the law governing the density and viscosity of binary mixtures, and introduced the Redlich-Kister equation of state to interpret the physical significance of coefficients. The findings suggested a relationship between the coefficients of the RK-EoS and the virial coefficients in terms of molecular interactions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Ming Zhou, Xiaoyu Zhang, Yaming Zhang, Ding Li, Zhe Zhao, Qing Wang, Kai Tang, Lina Niu, Fu Wang
Summary: This study focuses on the development of nanostructured glass-zirconia to improve the interface stability of dental zirconia substrate and veneered porcelain, addressing the issue of cohesive/adhesive fracture of veneered porcelain in dental practice.
Article
Dentistry, Oral Surgery & Medicine
Shu Ye, Shu-Fen Chuang, Sheng-Shu Hou, Jui-Che Lin, Li-Li Kang, Yung-Chung Chen
Summary: The effect of silane contents on their chemical interaction with MDP and affecting the bonding of MDP to zirconia was investigated using TOF-SIMS and SSNMR spectroscopy. The results showed that the silane enhanced the hydrophilicity and resin affinity of zirconia, but did not adversely affect the bond durability.
Article
Chemistry, Physical
Gaoying Hong, Mengyuan Liao, Tong Wu, Qiyue Zhou, Haifeng Xie, Chen Chen
Summary: The study demonstrated that grafting mercapto- and amino-terminated silanes effectively enhanced the osteogenic potential of Y-TZP implants, promoting osteogenic differentiation and mineralization while improving surface hydrophilicity to facilitate cell adhesion and growth. In contrast, vinyl- and methyl-terminal silanes exhibited inhibitory effects on certain bone-related gene expressions, highlighting the superiority of mercapto- and amino-terminated silanes in promoting osteogenesis.
APPLIED SURFACE SCIENCE
(2021)
Letter
Dentistry, Oral Surgery & Medicine
Hiroyasu Koizumi, Hideyuki Imai, Yasuhiko Kawai
JOURNAL OF PROSTHODONTIC RESEARCH
(2020)
Article
Dentistry, Oral Surgery & Medicine
Hiroyasu Koizumi, Kentaro Okamura, Haruto Hiraba, Akihisa Kodaira, Takayuki Yoneyama, Hideo Matsumura
EUROPEAN JOURNAL OF ORAL SCIENCES
(2020)
Article
Chemistry, Physical
Haruto Hiraba, Hiroyasu Koizumi, Akihisa Kodaira, Hiroshi Nogawa, Takayuki Yoneyama, Hideo Matsumura
Review
Dentistry, Oral Surgery & Medicine
Tomotaro Nihei, Chikahiro Ohkubo, Yuichiro Nishiyama, Yuji Tsubota, Hiroyasu Koizumi, Toshio Maseki, Masashi Miyazaki
DENTAL MATERIALS JOURNAL
(2020)
Article
Dentistry, Oral Surgery & Medicine
Shunsuke Akahane, Hiroyasu Koizumi, Akihisa Kodaira, Mitsuo Nakamura, Takayuki Yoneyama, Hideo Matsumura
DENTAL MATERIALS JOURNAL
(2020)
Article
Dentistry, Oral Surgery & Medicine
Akihisa Kodaira, Hiroyasu Koizumi, Haruto Hiraba, Kousuke Takehana, Takayuki Yoneyama, Hideo Matsumura
Summary: The study aimed to evaluate the effects of an experimental primer containing acetone solution and MDTHP on the bonds between noble metals and acrylic resin. Results showed that the MDTHP primer exhibited higher post-thermocycling shear bond strengths on all the four metals, especially on silver and copper. Within the study's limitations, MDTHP may be applicable as a functional monomer for bonding noble metal alloys.
Article
Engineering, Chemical
Ryouhei Kutsuma, Hiroyasu Koizumi, Hiroshi Nogawa, Michael F. Burrow, Takayuki Yoneyama, Hideo Matsumura
Summary: This study demonstrates that high bond strength between zirconia and veneering porcelain can be achieved through surface treatment with selected melted fluoride compounds. Shear bond strengths varied significantly among different treatment groups, with differences observed in CTE values between 6Y-TZP and veneering porcelain, the instability and phase transformation of 3Y-TZP, and the different performance of various treatment groups.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Chemistry, Physical
Haruto Hiraba, Hiroyasu Koizumi, Akihisa Kodaira, Kosuke Takehana, Takayuki Yoneyama, Hideo Matsumura
Summary: This study investigated the influence of copper surface oxidation and reduction on the shear-bond strength with functional monomers. The results showed different treatments and functional monomers had varied effects on the shear-bond strength. The presence or absence of copper-oxide films affected the effectiveness of functional monomers in improving bond strength.
Article
Dentistry, Oral Surgery & Medicine
Wataru Mikami, Hiroyasu Koizumi, Akihisa Kodaira, Haruto Hiraba, Takayuki Yoneyama, Hideo Matsumura
Summary: This study evaluated the effects of APF on the gloss and surface roughness of CAD/CAM resin composites, showing that APF application can reduce gloss and increase surface roughness for most materials tested.
DENTAL MATERIALS JOURNAL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Kosuke Takehana, Hiroyasu Koizumi, Haruto Hiraba, Akihisa Kodaira, Takayuki Yoneyama, Hideo Matsumura
Summary: This study assessed the effect of MDTHP primer on the bonding of noble metal alloys to an acrylic resin, and found that the MDTHP primer showed higher shear bond strength than the comparative control.
DENTAL MATERIALS JOURNAL
(2022)
Review
Dentistry, Oral Surgery & Medicine
Akihisa Kodaira, Hiroyasu Koizumi, Haruto Hiraba, Yoshimasa Takeuchi, Mari Koike, Saiji Shimoe
Summary: Due to the increased prices of palladium and gold, cast titanium restorations have been included in the Japanese national health insurance system. Research shows that primers or luting agents containing specific adhesive monomers promote bonding between titanium and resin materials.
JOURNAL OF ORAL SCIENCE
(2022)
Article
Dentistry, Oral Surgery & Medicine
Mika Furuchi, Yoshimasa Takeuchi, Atsushi Kamimoto, Hideo Matsumura, Hideyuki Imai, Hiroyasu Koizumi
Summary: Cast titanium restoration for molars is highly biocompatible and covered by Japanese national health insurance. Specific investment material and casting apparatus are required for titanium casting. This study successfully fabricated a titanium cast restoration for the mandibular left second molar with no defects observed, proving reproducibility and polishing properties comparable to conventional dental metal restorations.
JOURNAL OF ORAL SCIENCE
(2021)
Article
Dentistry, Oral Surgery & Medicine
Hideo Matsumura, Katsunori Kojima, Shigeru M. Mio, Takashi Yamamoto, Akihisa Kodaira, Hiroyasu Koizumi
JOURNAL OF ORAL SCIENCE
(2020)
Article
Dentistry, Oral Surgery & Medicine
Kentaro Okamura, Hiroyasu Koizumi, Akihisa Kodaira, Hiroshi Nogawa, Takayuki Yoneyama
JOURNAL OF ORAL SCIENCE
(2019)
Article
Dentistry, Oral Surgery & Medicine
Hideyuki Imai, Hiroyasu Koizumi, Akihisa Kodaira, Kentaro Okamura, Shunsuke Akahane, Hideo Matsumura
JOURNAL OF ORAL SCIENCE
(2019)
