نتایج جستجو برای: ca oh 2

تعداد نتایج: 2606494  

2012
Maria Giovanna Gandolfi

INTRODUCTION Ca(OH)(2)-containing/forming materials are conventionally used for indirect pulp-capping and are theoretically able to release Ca(2+) and OH(-) ions for hydrolytic dissociation. However, no evidence exists for ion diffusion through the remaining coronal dentin. The aim of this study was to design an innovative experimental set-up to test the ability of Ca(OH)(2)-containing and Ca(O...

2013
Gisele FARIA Milton Carlos KUGA Alessandra Camila RUY Arturo Javier ARANDA-GARCIA Idomeo BONETTI-FILHO Juliane Maria GUERREIRO-TANOMARU Renato Toledo LEONARDO

OBJECTIVE The goal of this study was to evaluate the efficacy of the Self-Adjusting File (SAF) and ProTaper for removing calcium hydroxide [Ca(OH)2] from root canals. MATERIAL AND METHODS Thirty-six human mandibular incisors were instrumented with the ProTaper system up to instrument F2 and filled with a Ca(OH)2-based dressing. After 7 days, specimens were distributed in two groups (n=15) acc...

Journal: :journal of nanostructures 2015
m. ghorbanali a. mohammadi r. jalajerdi

mg(oh)2 nanoparticles were synthesized by a rapid microwave reaction. the effect of sodium dodecyl sulfonate (sds as anionic surfactant) and cetyl tri-methyl ammonium bromide (ctab as cationic surfactant) on the morphology of magnesium hydroxide nanostructures was investigated. multi wall carbon nano tubes was organo-modified for better dispersion in cellulose acetate matrix. the influence of m...

2016
Adam LLOYD Geraldine NAVARRETE Melissa Andreia MARCHESAN David CLEMENT

Objective This study compared the effectiveness of Er:YAG laser-activated irrigation (PIPS), passive ultrasonic irrigation (PUI) with EndoUltra and standard needle irrigation (SNI) in the removal of calcium hydroxide [Ca(OH)2] from the mesial roots of Weine Type II mandibular molars. Material and Methods Thirty mandibular molars were screened by µCT for the presence of mesial roots with compl...

2011
Cláudia Fernandes de Magalhães Silveira Rodrigo Sanches Cunha Carlos Eduardo Fontana Alexandre Sigrist de Martin Brenda Paula Figueiredo de Almeida Gomes Rogério Heládio Lopes Motta Carlos Eduardo da Silveira Bueno

OBJECTIVES The purpose of this study was to assess the in vitro antibacterial activity of four formulations of calcium hydroxide [Ca(OH)(2)] pastes against Enterococcus faecalis, Staphylococcus aureus, Pseudomonas aeruginosa and Streptococcus mutans. METHODS A broth dilution test was performed, and the lengths of time for different pastes to kill the microbial cells were recorded and statisti...

Journal: :Brazilian dental journal 2002
Brenda Paula Figueiredo de Almeida Gomes Caio Cezar Randi Ferraz Morgana Eli Vianna Pedro Luiz Rosalen Alexandre Augusto Zaia Fabricio Batista Teixeira Francisco José de Souza-Filho

The aim of this study was to investigate in vitro the antimicrobial activity of calcium hydroxide in combination with several vehicles against some microorganisms commonly isolated from root canals. Antimicrobial activity was determined by the agar diffusion method. Stainless-steel cylinders were placed on each inoculated agar medium. The test medicaments and their controls were placed inside t...

2014
Dohyun Kim Euiseong Kim

The first part of this study reviewed the characteristics of calcium hydroxide (Ca(OH)2) and summarized the results of in vitro studies related to its antimicrobial effects. The second part of this review covers in vivo studies including human clinical studies and animal studies. The use of Ca(OH)2 as an intracanal medicament represented better histological results in animal studies. However, h...

Journal: :Construction and Building Materials 2021

Hydrated lime (Ca(OH)2)- and reactive magnesia (MgO)-activated ground granulated blast-furnace slag (GGBS) have shown advantages in geotechnical applications compared with Portland cement (PC). To apply these two novel binders slurry form to field applications, the properties of their grouts need be investigated, which is objective this study. The heat hydration, bleeding, viscosity, setting be...

Journal: :Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics 2011
Juliana M da Silva Carlos V Andrade Junior Alexandre A Zaia Oscar F Pessoa

This study evaluated cleaning of the dentinal wall after removal of different calcium hydroxide pastes. Sixty-eight single-rooted teeth were prepared using the step-back technique and randomly divided into 4 groups according to medication used: Ca(OH)2 with 0.2% chlorhexidine solution (Group 1), Ca(OH)2 with propylene glycol (Group 2), Ca(OH)2 with antibiotic paste (ciprofloxacin, metronidazole...

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