Duarte MAH, Alves de Aguiar K, Zeferino MA, Vivan RR, Ordinola‐Zapata R, Tanomaru‐Filho M, Weckwerth PH, Kuga MC. Evaluation of the propylene glycol association on some physical and chemical properties mineral trioxide aggregate. International Endodontic Journal , 45 565–570, 2012. Abstract Aim To evaluate influence (PG) flowability, setting time, pH calcium ion release aggregate (MTA). Methodology Mineral was mixed with different proportions PG, as follows: group 1: MTA + 100% distilled...

Enterococcus faecalis is a bacterial species often found in root canals with failed endodontic treatment. Alkaline pastes are widely used Endodontics because of their biocompatibility and antimicrobial activity, but this microorganism can resist alkalinity. The purpose study was to evaluate vitro the alkaline pH resistance E. for different periods up 14 days. Samples were obtained from oral cavity 150 patients Endodontic clinic. experimental tubes (n=84) first adjusted 6M NaOH values 9.5,...

Otitis media (OM) is a broad term describing group of infectious and inflammatory disorders the middle ear. Despite antibiotic therapy, acute OM can progress to chronic suppurative otitis (CSOM) characterized by ear drum perforation purulent discharge. Pseudomonas aeruginosa most common pathogen associated with CSOM. Although, macrophages play an important role in innate immune responses but their pathogenesis P. aeruginosa-induced CSOM not known. The objective this study examine interaction...

Abstract Aim To evaluate the influence of powder‐to‐gel ratio (0.19 g powder to 50 μL gel, thick MTA Flow, and 0.06 fluid Flow) on biocompatibility Flow (Ultradent Products Inc., South Jordan, UT , USA lot: 2015122901) compare it with Biodentine (Septodont Saint‐Maur‐des‐Fossés, France, B18542A). Methodology The materials were manipulated inserted into polyethylene tubes for implantation in twenty rats. After 7, 15, 30 60 days, specimens removed embedded paraffin. Haematoxylin eosin sections...

Abstract This study evaluated the presence of residues after removal calcium hydroxide [Ca(OH) 2 ] associated with different vehicles. Thirty single‐rooted teeth were instrumented to a master apical file #25 using 2.5% NaOCl as main irrigant and 17% trisodium EDTA (ethylenediaminetetraacetic acid) final agent irrigant. Then, root canals dressed Ca(OH) silicone oil (Group 1), 2% chlorhexidine gluconate 2), or propylene glycol 3). After coronal sealing, all kept in moist environment at room...

The aim of this study was to evaluate the interference radiopacifiers bismuth oxide (BO), carbonate (BC), subnitrate (BS), and zirconiun (ZO) on solubility, alkalinity antimicrobial properties white Portland cement (WPC). substances were incorporated PC, at a ratio 1:4 (v/v) subjected solubility test. To pH, cements inserted into retrograde cavities prepared in simulated acrylic teeth immediately immersed deionized water. pH solution measured 3, 24, 72 168 h. activity evaluated by radial...

The tongue is one of the primary sources halitosis. manual or mechanical removal biofilm known to decrease oral malodor. Objective: To evaluate a new hygiene technique hereby referred as "the X technique" and its effects on both halitosis number microorganisms based microbiological parameters diagnostic features breath. Material Methods: study included thirty patients divided into control group (patients without systematized guidelines lingual hygiene, but who performed cleaning dorsum, each...

Abstract Chronic suppurative otitis media (CSOM) is one of the most common infectious diseases middle ear especially affecting children, leading to delay in language development and communication. Although Staphylococcus aureus pathogen associated with CSOM, its interaction epithelial cells not well known. In present study, we observed that otopathogenic S. has ability invade human (HMEECs) a dose time dependent manner. Scanning electron microscopy demonstrated increase number on surface...

To investigate the microbial etiology of suppurative chronic otitis media (SCOM) in patients with complete cleft lip and palate isolated to determine sensitivity microorganisms antibiotics by drug diffusion from impregnated discs agar minimum inhibitory concentration each these dilution agar.Effusion samples SCOM obtained 40 registered at Hospital for Rehabilitation Craniofacial Anomalies, University São Paulo, Bauru, Brazil, were bacteriologically analyzed cultures. The bacteria submitted...

Abstract The aim of this study was to evaluate the impact different file sizes on accuracy two electronic apex locators ( EAL s). Thirty extracted human single‐rooted permanent mandibular incisors were used. A #10 K‐file inserted in root canal until its end could be observed (using a light microscope) through apical foramen. One millimetre subtracted establish working length WL ). Electronic readings performed using MiniApex Locator or Root ZX II , from #130 K‐file. Statistical analysis by...

This in vitro study aimed to determine the susceptibility of oral specimens and ATCC lineages Candida albicans for five endodontic sealers, which were pure associated with two antifungal drugs, analyze their effect on physical properties. For this purpose, 30 C. albicans, collected from cavity patients assisted at endodontics clinic Universidade Sagrado Coração, analyzed. Yeasts sealers was tested by diffusion agar plates. Physical properties evaluated according ADA specification no. 57. The...

Candida albicans is present in the oral cavity and whole digestive tract of humans other animals, being frequently related to endodontic treatment failure. The study determined incidence C. susceptibility isolates different pH values saturated calcium hydroxide aqueous solution at 12.5. Sixty-five patients attending Endodontic Clinic Sagrado Coração University participated study. collected samples were cultivated selective media for tested terms resistance both alkaline hydroxide. In...

The aim of this study was to evaluate the subcutaneous tissue response in rats and antimicrobial activity intracanal calcium hydroxide dressings mixed with different substances against E. faecalis. Fifty four were divided into three experimental groups according vehicle treatment: 0.4% chlorohexidine propylene glycol (PG), Casearia sylvestris Sw PG hydroxide+PG (control group). pastes placed polyethylene tubes implanted tissue. After 7, 14 30 days, samples processed histologically evaluated...

To characterize the microbial etiology of chronic suppurative otitis media comparing methods classical bacteriological culture and polymerase chain reaction.Bacteriological analysis by molecular reaction 35 effusion samples from patients with cleft lip palate attending Hospital for Rehabilitation Craniofacial Anomalies University São Paulo, Bauru, Brazil.Collection clinical through external auditory tube.Otolaryngologic diagnosis media.Positive cultures were obtained 83% patients. Among 31...

OBJECTIVE: This study evaluated, in several analysis periods, pH and calcium release antibacterial activity provided by MTA Fillapex sealer compared to Sealapex AH Plus sealers. MATERIAL AND METHOD: Polyethylene tubes were filled with a immersed distilled water. After 24 hours, 14 28 days, endodontic sealers evaluated directly water which the stored. Sealers was against Enterococcus faecalis Staphylococcus aureus means of agar diffusion test. All data submitted ANOVA Tukey tests (α=0.05)....

Introduction: Vitamin D is an hormone whose function to maintain calcium and phosphorus homeostasis in order ensure bone mineralization. Vitamin-D deficiency can lead severe diseases, including atypical mineralization of bone, because it decreases osteoblasts activity. It has become increasingly common been mainly observed obese people who avoid direct sunlight exposure their skin have a vitamin D-deficient diet. Objectives: Due the high incidence hypovitaminosis world population, this study...

Changes in the suboccipital muscles and hamstrings may interfere with head posture biomechanics of temporomandibular joint, both which contribute to severity disorders (TMD). The objective this investigation was evaluate effects a global postural exercise program (GPEP) on pain intensity mouth-opening range motion (ROM) women TMD. participants were comprised 30 TMD who divided into two groups: an experimental group (EG) control (CG). A pressure algometer used for assessment paquimeter...

Objective: Monocyte-derived macrophages (MDMs) ability to phagocytize and produce nitric oxide (NO) was tested against root-canal strains of Enterococcus faecalis submitted alkaline stress. Root-canal were also compared with urine Enterococci.Materials Methods: stressed alkaline-BHI broth incubated in vitro at a cell/bacteria ratio 1:5. Phagocytosis analyzed by fluorescence microscopy using acridine orange stain, NO concentration measured supernatants.Results Conclusions: Alkaline-stress...

Foi avaliado o poder antimicrobiano dos cimentos Endomethasone, AH26, Sealer 26, 26 acrescido de 5% hexametilenotetramina, 10% Sealapex e pasta aquosa hidróxido cálcio. Foram utilizados método difusão radial em placas ágar escavadas cepas puras microorganismos, sendo que as leituras foram efetuadas após 24 48 horas incubação aerobiose microaerofilia. Os resultados mostraram Endomethasone apresentou os maiores halos inibição do crescimento bacteriano acréscimo hexametilenotetramina acarretou...

To evaluate the solubility, pH, antimicrobial action, and cytotoxicity of ambroxol hydrochloride (AMB), N-acetylcysteine (NAC), calcium hydroxide (CH) pastes for use as intracanal medications.Solubility was determined by micro-CT, based on paste volume remaining after immersion in water 7 days. pH measured immersing acrylic tubes containing ultrapure then measuring 3 hours, days, Antimicrobial action against Enterococcus faecalis assessed percentage living cells, using live/dead staining...