Results 51 to 60 of about 7,786 (229)

Comparison of the Effect of Three Cements on Prevention of Enamel Demineralization Adjacent to Orthodontic Bands

Journal of Dental Research, Dental Clinics, Dental Prospects, 2012
Background and aims. This in vitro study was designed to compare enamel demineralization depths adjacent to bands cemented with zinc polycarboxylate, glass ionomer (GI) and resin-modified glass ionomer (RMGI), in order to achieve minimal enamel ...
Mehdi Kashani, Sareh Farhadi, Neda Rastegarfard   +2 more
doaj   +1 more source

Towards tailored superplasticizers [PDF]

, 2005
Superplasticizers (SP) of the “new generation” are essentially polycarboxylate polymers. Polymers of this family can be produced with almost infinite variations in their chemical structure, which allow the fulfilment of specific (tailored) properties ...
Bowen, P., Houst, Y.F., Perche, F.
core  

A study of blood contamination of Siqveland matrix bands [PDF]

, 2002
AIMS To use a sensitive forensic test to measure blood contamination of used Siqveland matrix bands following routine cleaning and sterilisation procedures in general dental practice. MATERIALS AND METHODS: Sixteen general dental practices in the West of
A H Lowe, AH Lowe, BH Lanphear, CWI Douglas, D MacKenzie, E McColl, F J T Burke, J Bagg, LM Edmunds, M Cox, P Barton, S McHugh, WM Lee   +12 more
core   +1 more source

Deep Caries Management: EFCD‐ESE‐ORCA S3‐Level Clinical Practice Guideline

International Endodontic Journal, EarlyView.
ABSTRACT Objective To develop an evidence‐based S3‐level clinical practice guideline for the management of deep and extremely deep caries in vital permanent teeth. Methods An evidence‐based medical guideline based on systematically searched and appraised evidence as well as a structured consensus (S3‐level) was jointly developed by the European ...
Falk Schwendicke, Esra Kosan, Avijit Banerjee, Aylin Baysan, Lars Bjørndal, Laura Ceballos, Henry F. Duncan, Sascha Herbst, Klaus W. Neuhaus, Anne C. O'Connell, Sebastian Paris, Helena Dujic   +11 more
wiley   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, Volume 13, Issue 19, 2 April 2026.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source

Study on the Permeability of Modified Bentonite Slurry in Landfill

Advances in Materials Science and Engineering, 2020
The impermeability of cutoff wall is one of the most important factors affecting the life of landfill. Hence, we used sodium carboxymethyl cellulose to modify bentonite and developed a modified bentonite-cement-fly ash antiseepage slurry with a low ...
Zenan Zhang, Guozhong Dai, Yanmin Sheng
doaj   +1 more source

Experimental study on preparation and optimization of high-performance cement grouts mixed with chemical additives for capsule grouting technology

Journal of Materials Research and Technology, 2022
With the development of underground space, underground construction inevitably affects the safety of surrounding structures. Capsule grouting technology (CGT) is proposed to protect adjacent structures from the impact of underground construction.
Gang Zheng, Jianyou Huang, Yu Diao, Aoyang Ma, Yiming Su, Chenlei Jiao, Hao Chen   +6 more
doaj   +1 more source

Erosion Process of Polycarboxylate Cements in Organic Acids

Dental Materials Journal, 1983
The amounts of Zn and Mg eluted from the zinc polycarboxylate cement into acetic, lactic and citric acids increased with an increase in the formation constant of the acid-Zn or -Mg complexes. The erosion process consisted of two processes, namely, dissolution of the unreacted cement powder and decomposition of the matrix.
S, Matsuya, M, Koda, Y, Matsuya, Y, Yamamoto, M, Yamane   +4 more
openaire   +3 more sources

Sustainable High‐Performance Green Concrete Utilizing Untreated Spent Foundry Sand: Microstructural Analysis, Mechanical Properties, and Durability

Engineering Reports, Volume 8, Issue 4, April 2026.
This study demonstrates the successful incorporation of Spent Foundry Sand (SFS) as a sustainable alternative to natural sand in concrete, enhancing compressive and tensile strengths by up to 26% and 12.87%, respectively, while reducing chloride permeability.
Yiren Wang, Lian Ju, Yibo Wang, Wei Liu
wiley   +1 more source

Study on the Influence of Acrylic-Acid Addition Mode on the Performance of Polycarboxylate Slump-Retaining Superplasticizers [PDF]

E3S Web of Conferences
The study employed ethylene glycol monovinyl ether (EPEG) as the primary monomer and utilized a redox initiation system comprising hydrogen peroxide, ferrous sulfate, ascorbic acid, and mercaptoethanol.
Yang Xianxian, Guo Xiujuan, Qiu Nianli, Xiong Qiumin, Chen Xiaobin   +4 more
doaj   +1 more source