نتایج جستجو برای: root fillings

تعداد نتایج: 140301  

Journal: :Applied sciences 2021

The aim of this study was to compare the alveolar bone crest (ABC) level root canal filled (RCF) teeth without apical periodontitis with corresponding non-filled in same individual using three-dimensionally cone-beam computed tomography (CBCT) data. Two hundred and thirty-five matching pairs RCF were selected from a pool 580 random CBCT-images (voxel size 160–200 µm). Teeth periodontitis, perio...

2015
Essam Soussa

Submit Manuscript | http://medcraveonline.com J Dent Health Oral Disord Ther 2015, 2(3): 00052 researched mercury poisoning and identified through his research that silver amalgam fillings in the mouth were a source of mercury vapor. More recently, many studies reported that amalgam may constitute potential toxic hazards to patients through mercury release and absorption, surface corrosion, and...

2011
Mohammad Mahdi Aghdasi Mohammad Asnaashari Alireza Aliari Farahnaz Fahimipour Sepideh Soheilifar

INTRODUCTION Inappropriate condensation of gutta-percha or improper use of sealer can lead to voids in root canal filling material and consequent failure of the treatment. Timely detection of voids within root canal filling may prevent complications. In this study, we compared the accuracy of digital and conventional radiograph for detecting voids within root canal fillings. MATERIALS AND MET...

Journal: :Journal of endodontics 2010
Mahmoud Torabinejad Masoud Parirokh

INTRODUCTION Mineral trioxide aggregate (MTA) was developed because existing materials did not have the ideal characteristics for orthograde or retrograde root-end fillings. MTA has been recommended primarily as a root-end filling material, but it has also been used in pulp capping, pulpotomy, apical barrier formation in teeth with open apexes, repair of root perforations, and root canal fillin...

2017
Sowmya Shetty Sam L Kahler Bill Kahler

The aim of this review was to identify and analyse all studies related to the effects of alkaline materials used in dentistry on roots of teeth. The first part of the review focused on mechanical property alterations of root dentine due to sodium hypochlorite (SH) used as an irrigant solution based on MeSH (Medical Subject Heading) terms from a previous study by Pascon et al in 2009. The second...

Journal: :Journal of endodontics 2009
Gustavo De-Deus Karina Di Giorgi Sandra Fidel Rivail Antonio Sergio Fidel Sidnei Paciornik

INTRODUCTION The present study was designed to investigate the bond strength produced by Epiphany and Epiphany SE to root canal dentin. METHODS A sample of 36 human upper canines was prepared and assigned to experimental groups (n = 12), designated as group 1, Resilon/Epiphany; group 2, Resilon/Epiphany SE; and group 3, AH Plus/gutta-percha. After the filling procedures, each tooth was prepar...

2005
HIROSHI GODA

For a hyperbolic 3-manifold M with a torus boundary component, all but finitely many Dehn fillings on the torus component yield hyperbolic 3manifolds. In this paper, we will focus on the situation where M has two exceptional Dehn fillings, both of which yield toroidal manifolds. For such situation, Gordon gave an upper bound for the distance between two slopes of Dehn fillings. In particular, i...

Journal: :journal of dentistry, tehran university of medical sciences 0
abdollah ghorbanzadeh assistant professor, dental research center, dentistry research institute, department of endodontics, school of dentistry, tehran university of medical sciences, tehran, iran. noushin shokouhinejad associate professor, dental research center, dentistry research institute, department of endodontics, school of dentistry, tehran university of medical sciences, tehran, iran ; iranian center for endodontic research, research institute of dental sciences, shahid beheshti university of medical sciences, tehran, iran. bita fathi postgraduate student of endodontics, school of dentistry, tehran university of medical sciences, tehran, iran. maryam raoof oral and dental diseases research center/department of endodontics, kerman university of medical sciences, kerman, iran. mehrfam khoshkhounejad assistant professor, dental research center, dentistry research institute, department of endodontics, school of dentistry, tehran university of medical sciences, tehran, iran.

this study compared the marginal adaptation of mineral trioxide aggregate (mta) and mta-like materials as root-end fillings after incubation in phosphate buffer saline (pbs), a synthetic tissue fluid, for either 1 week or 2 months.in this experimental study, seventy-two extracted human single-rooted teeth were prepared and obturated with gutta-percha and ah26 sealer. the apical 3 mm of the root...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد 1390

هدف از این تحقیق، بررسی و مدلسازی ارتباط جنگل زدایی و متغیرهای انسانی – فیزیوگرافی ر جنگل های فلارد است. جنگل زدایی براساس کاهش درصد تاج پوشش جنگل با استفاده از تفسیر چشمی عکس های هوایی سال های 1334، 1346، 1376 و تصویر ماهواره ای سال 1387 انجام شد. رابطه ساده میزان جنگل زدایی و متغیرهای مستقل (عوامل توپوگرافی، نزدیکترین فاصله به جاده، نزدیکترین فاصله به مناطق مسکونی ، تراکم جاده، جمعیت) با استف...

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