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Apical leakage

Radu Campean, Matthias Hasun, Claudia Stöllberger, Johannes Bucher, Josef Finsterer, Christoph Schnack, Franz Weidinger
BACKGROUND: Reversible left ventricular dysfunction, also termed Takotsubo cardiomyopathy, is rarely reported in Addison's disease after initiation of hormone replacement therapy. The pathogenesis of this cardiomyopathy is unknown. CASE PRESENTATION: A 41-year-old white woman with a history of autoimmune Hashimoto thyroiditis diagnosed 3 years earlier and acute adrenal insufficiency diagnosed 3 weeks earlier presented with new onset of heart failure New York Heart Association class IV, which had started shortly after initiation of hormone replacement therapy with hydrocortisone 20 mg/day and fludrocortisone 0...
October 12, 2016: Journal of Medical Case Reports
Kevin Phan, Joshua M Haswell, Joshua Xu, Yusuf Assem, Stephanie L Mick, Samir R Kapadia, Anson Cheung, Frederick S Ling, Tristan D Yan, Vakhtang Tchantchaleishvili
De novo progressive aortic insufficiency (AI) is a side effect frequently related to prolonged support with continuous-flow left ventricular assist devices (CF-LVAD). Its progression can result in recurrent clinical heart failure symptoms and significantly increased mortality. Recently, percutaneous intervention methods such as transcatheter aortic valve replacement (TAVR) and percutaneous occluder devices have emerged, However, given the very scarce global experience with these approaches, evidence in the literature is lacking...
September 22, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
Prajakta Patil, Vishnu P S Rathore, Chetan Hotkar, Snehal S Savgave, K Raghavendra, Priya Ingale
AIMS: The present study aimed to compare apical sealing ability between GuttaFlow and AH Plus. MATERIALS AND METHOD: Eighty extracted human maxillary anterior teeth with fully formed apex and straight root were collected for this study. The root canals were cleaned and shaped using a standard step back preparation to size 60# master apical file at the established working length and divided into four groups: Group 1, GuttaFlow sealer with gutta-percha; Group 2, AH Plus sealer with gutta-percha; Group 3, positive control group (Teeth were instrumented and left without obturation); Group 4, negative control group (Teeth were totally coated with nail varnish) Dye leakage was carried out...
July 2016: Journal of International Society of Preventive & Community Dentistry
Meraj Sultana, Mohammad A Musani, Iffat M Ahmed
AIMS AND OBJECTIVES: Endodontic treatment is directed to eliminate microbial challenges from the root canal system and to create a complete seal. The aim of this study was to assess the apical sealing ability of resin-based Epiphany-Resilon root canal filling system and to compare it with the sealing abilities of different combinations of AH Plus, gutta-percha, Epiphany, and Resilon. MATERIALS AND METHODS: One hundred extracted human maxillary incisor roots were treated endodontically...
July 2016: Journal of International Society of Preventive & Community Dentistry
Raheleh Emami, Sedigheh Khedmat, Salma Pirmoazen, Kiamars Honardar
OBJECTIVES: The aim of this study was to compare apical sealing ability of alpha and beta phases of gutta-percha by means of bacterial leakage model. MATERIALS AND METHODS: Fifty single-rooted human premolars were selected. The root canals were prepared with Mtwo rotary instruments up to apical #35.04. Forty teeth were randomly divided into two groups (n= 20). The root canals were obturated by alpha phase (G1) and beta phase (G2) of gutta-percha and AH26 sealer, respectively, with warm vertical compaction technique...
November 2015: Journal of Dentistry of Tehran University of Medical Sciences
Saskia Pokorny, Katharina Huenges, Jan Hinerk Hansen, Yannik Schadow, Gunther Fischer, Michael M Morlock, Jochen Cremer, Georg Lutter
OBJECTIVES: A large cohort of patients suffering from severe mitral regurgitation does not meet the indications for conventional surgery and would greatly benefit from a transcatheter approach in the beating heart. Consequently, off-pump transcatheter mitral valve procedures have been the focus of recent research. The aim of this study was the in vivo evaluation and comparison of subannular versus apical fixation of mitral valved stents to show the feasibility of subannular anchorage...
July 29, 2016: European Journal of Cardio-thoracic Surgery
Fatemeh Ayatollahi, Mahdi Tabrizizadeh, Milad Hazeri Baqdad Abad, Reza Ayatollahi, Fatemeh Zarebidoki
INTRODUCTION: Microleakage is of the causes of endodontic treatment failure. The aim of this in vitro study, was to compare the microleakage of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) cement apical plugs in three environments. METHODS AND MATERIALS: A total of 130 human extracted single rooted teeth were collected. After decoronation, preparation of the root canal space and simulation of open apices, 5 teeth were selected as positive and negative control groups and the rest of the samples were randomly divided into two groups (MTA plug and CEM cement plug) and each group was divided into 3 subgroups (dry, contaminated with saliva and contaminated with blood)...
2016: Iranian Endodontic Journal
Manoj S Likhitkar, Shantaram V Kulkarni, Aravind Burande, Vishal Solanke, C Sushil Kumar, Babasaheb Kamble
AIMS AND OBJECTIVES: The success of root canal treatment depends on proper debridement, instrumentation, proper accessibility, and proper restoration. The presence of a smear layer is considered to be a significant factor. This in vitro study was conducted to assess the effect of the presence/absence of a smear layer on the microleakage of root canal filled teeth using different instruments and obturation methods. MATERIALS AND METHODS: One hundred extracted mandibular premolars with closed apices and single roots were chosen and then divided into six groups, A to F, consisting of 15 teeth each...
May 2016: Journal of International Society of Preventive & Community Dentistry
Korbinian Benz, Ljubisa Markovic, R A Jordan, Claudia Novacek, Jochen Jackowski
To determine whether the selection of retrograde filling material or the choice of instruments in root tip resection influences the seal of the retrograde root filling. Seventy-two single-rooted teeth were used. Root resection was performed using a Lindemann bone cutter, a Lindemann bone cutter with A-shaped cutting design or a diamond-coated bur. Retro-cavities were prepared by piezo-tips and filled with Super-EBA or MTA. Teeth were made transparent and dye penetration was assessed. Teeth filled with MTA, irrespective of the resection instrument, showed no measurable dye penetration...
May 30, 2016: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
Yasunobu Funakoshi, Kenichi Ohmori, Shinichi Takeda
Severe subcutaneous emphysema sometimes develops after pulmonary resection. We report our management of ten patients who were treated with subcutaneous Penrose drainage. Water seal test at chest closure showed no air leakage in 5, and a small amount in 5. Chest X-ray at the progression of massive subcutaneous emphysema showed no obvious pneumothorax in 2, and slight apical pneumothorax in 8. Subcutaneous emphysema developed after removal of chest tubes in 6, and before removal in 4. Subcutaneous drains were inserted at the midclavicular line or the side chest in 8, and both in 2...
May 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
Vineeta Nikhil, Padmanabh Jha, Navleen Kaur Suri
AIM: The purpose of the study was to evaluate and compare the sealing ability of mineral trioxide aggregate (MTA) with three different methods. MATERIALS AND METHODS: Forty single canal teeth were decoronated, and root canals were enlarged to simulate immature apex. The samples were randomly divided into Group MD = MTA-angelus mixed with distilled water and Group MC = MTA-angelus mixed with 2% chlorhexidine, and apical seal was recorded with glucose penetration method, fluid filtration method, and dye penetration methods and compared...
May 2016: Journal of Conservative Dentistry: JCD
Rambabu Tanikonda, Prasanthi N V D Nalam, Girija S Sajjan, B H Vijaya Lakshmi, K Madhu Varma, R Kalyan Satish
INTRODUCTION: Obturation of the root canal system is required to prevent recontamination of the root canal after cleaning and shaping procedures and to seal the root canal completely, both the apical and coronal avenues of potential leakage and to maintain the disinfected status. AIM: The aim of this study was to determine the microleakage by dye leakage method at 1mm, 3mm and 5mm short of the apex with different sizes of apical preparation, obturated by Obtura...
April 2016: Journal of Clinical and Diagnostic Research: JCDR
Paulo Leal Medeiros, Norberti Bernardineli, Bruno Cavalini Cavenago, Sérgio Aparecido Torres, Marco Antonio Hungaro Duarte, Clovis Monteiro Bramante, Marina Angélica Marciano
Objectives To evaluate the sealing ability of three root-end filling materials (white MTA, CPM, and MBPc) using an Enterococcus faecalis leakage model. Material and Methods Seventy single-root extracted human teeth were instrumented and root-ends were resected to prepare 3 mm depth cavities. Root-end preparations were filled with white MTA, CPM, and MBPc cements. Enterococcus faecalis was coronally introduced and the apical portion was immersed in BHI culture medium with phenol red indicator. The bacterial leakage was monitored every 24 h for 4 weeks...
April 2016: Journal of Applied Oral Science: Revista FOB
Alper Kuştarcı, Kürşat Er, Seyda Hergüner Siso, Hakan Aydın, Hatice Harorlı, Dilara Arslan, Omer Kirmali
OBJECTIVE: The aim of this study was to investigate the efficacy of an erbium chromium: yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser with different irrigation solutions [sodium hypochlorite (NaOCl), ethylenediaminetetraacetic acid (EDTA), QMix 2in1, and peracetic acid] in removing calcium hydroxide (CH) from artificial grooves created in root canals. BACKGROUND DATA: CH has to be removed totally before the root canal filling. Any CH residue on the dentin walls may affect the dentinal bond strength and the penetration of sealers into the dentin tubules, and may increase apical leakage...
May 2016: Photomedicine and Laser Surgery
Maryam Khoroushi, Farinaz Shirban, Mahsa Sahraneshin-Samani
BACKGROUND: Moisture control is very important in restorative procedures in dentistry. Use of hemostatic agents helps control moisture; however, they might result in changes on enamel and dentin surfaces, affecting composite resin bond quality. The aim of this in vitro study was to evaluate the marginal microleakage of two different composite resins with the use of three different hemostatic agents. MATERIAL AND METHODS: Standardized Class V cavities were prepared on the buccal and lingual surfaces of 48 premolars with cervical margins 1 mm apical to the cementoenamel junction (CEJ)...
April 2016: Journal of Clinical and Experimental Dentistry
Nicole M Fuerst, Leona Serrano, Grace Han, Jessica I W Morgan, Albert M Maguire, Bart P Leroy, Benjamin J Kim, Tomas S Aleman
PURPOSE: To describe in detail the phenotype of a patient with Bietti crystalline dystrophy (BCD) complicated by choroidal neovascularization (CNV) and the response to intravitreal Bevacizumab (Avastin(®); Genentech/Roche). METHODS: A 34-year-old woman with BCD and mutations in CYP4V2 (c.802-8_806del13/p.H331P:c992A>C) underwent a complete ophthalmic examination, full-field flash electroretinography (ERG), kinetic and two-color dark-adapted perimetry, and dark-adaptometry...
March 30, 2016: Ophthalmic Genetics
Hossein Mirhadi, Fariborz Moazzami, Saeed Rangani Jahromi, Sareh Safarzade
STATEMENT OF THE PROBLEM: Alkaline pH can affect the physical and chemical properties and sealing ability of apical plug material. Calcium hydroxide is used as an intracanal medication to complete disinfection of root canals. It raises the pH of environment to alkaline value. PURPOSE: The aim of this in vitro study was to evaluate and compare the effect of alkaline pH on the sealing ability of calcium-enriched mixture (CEM) cement and mineral trioxide aggregate (MTA) apical plugs...
March 2016: Journal of Dentistry
Henrik Casimir Ahn, Jacek Baranowski, Lars-Goran Dahlin, Niels Erik Nielsen
BACKGROUND: The purpose of this study was to report the use of a transvenous transseptal approach using a stent valve in patients with degenerated biological mitral valve prostheses, regurgitation after mitral repair, and native mitral stenosis. METHODS: Ten patients (median age, 74 years; range, 20-89 years; 5 men and 5 women) with degenerated mitral bioprosthetic valves (n = 7), failed mitral repair (n = 1), or calcified native stenotic valves (n = 2) underwent transvenous implantation of a stent valve...
June 2016: Annals of Thoracic Surgery
Anurag Jain, K C Ponnappa, Pankaj Yadav, Yogesh Rao, Nikhil Relhan, Priyanka Gupta, Ashish Choubey, Shivanshu Bhardwaj
INTRODUCTION: Insufficient apical seal is the significant reason for surgical endodontic disappointment. The root-end filling material utilized should avoid egress of potential contaminants into periapical tissue. AIM: The aim of this study was to compare the sealing ability of four root-end filling materials MTA, Portland cement, IRM, RMGIC in teeth with root apices resected at 0 and 45 angle using dye penetration method under fluorescent microscope. MATERIALS AND METHODS: Hundred extracted human maxillary anterior teeth were sectioned horizontally at the cement-enamel junction...
January 2016: Journal of Clinical and Diagnostic Research: JCDR
Roger Cueva-Goig, Leopoldo Forner-Navarro, M Carmen Llena-Puy
BACKGROUND: Several techniques have been proposed for root canal filling. New rotary files, with non-standardized taper, are appearing, so, points adapted to the taper of the last instrument used to prepare the canal can help in the obturation process. The aim of this study is to assess the sealing ability of different root canal filling techniques. MATERIAL AND METHODS: Root canals from 30 teeth were shaped with Mtwo and divided in three groups; A, standard lateral condensation with size 35 and 20 gutta-percha points; B, standard lateral condensation and injected gutta-percha; C, single gutta-percha point (standardized 35 Mtwo), continuous wave technique and injected gutta-percha...
February 2016: Journal of Clinical and Experimental Dentistry
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