نتایج جستجو برای: flex master

تعداد نتایج: 41385  

ژورنال: مجله دندانپزشکی 2007
بیدار, مریم , جعفرزاده, حمید , ضرابی, محمد حسن ,

Background and Aim: Mechanical preparation of canal is one of the most important stages in root canal therapy. Various kinds of hand or rotary techniques are used for mechanical preparation of canal and each of them has advantages and disadvantages. During canal preparation, extrusion of debris from the apical foramen can result in periapical inflammation and increased pain and edema. The aim o...

ژورنال: دانشور پزشکی 2008
لباف, حسین , نادرالوجود, محمدحسین , هنردار, کیامرث ,

  Background: Stainless steel instruments have long used as conventional instruments applied in root canal therapy procedures. Being difficult the canal preparation by these instruments, a new generation of nickel-titanium instruments have introduced. The aim of this study was to compare the manual Ni-Ti instruments with the Flex Master® Ni-Ti rotary system in canal preparation.   Materials & M...

Journal: :iranian endodontic journal 0
kiumars nazari moghaddam department of endodontics, dental school, shahed university of medical sciences, tehran, iran majid mehran department of pediatrics, dental school, shahed university of medical sciences, tehran, iran hamideh farajian zadeh dentist, private practice, tehran, iran

introduction: pulpectomy of primary teeth is commonly carried out with hand files and broaches; a tricky and time consuming procedure. the purpose of this in vitro study was to compare the cleaning efficacy and time taken for instrumentation of deciduous molars using hand k-files and flex master rotary system. materials and methods: in this study, 68 canals of 23 extracted primary molars with a...

ژورنال: :مجله دندانپزشکی 0
محمد حسن ضرابی mh. zarrabi مریم بیدار m. bidar حمید جعفرزاده h. jafarzadeh

زمینه و هدف: آماده سازی مکانیکی کانال دندان، یکی از مهمترین مراحل درمان ریشه است. جهت آماده سازی از روش های دستی یا چرخشی استفاده می شود که هر یک از آنها مزایا و معایبی دارند. یکی از مشکلات در تمام سیستم ها، خروج دبری از فورامن آپیکال در حین آماده سازی کانال می باشد که می تواند باعث ایجاد التهاب پری آپیکال و در نتیجه افزایش درد و تورم شود. مطالعه حاضر با هدف مقایسه روش آماده سازی دستی و سه سیست...

ژورنال: :مجله دندانپزشکی 0
کاظم آشفته یزدی k. ashofteh yazdi محمد اسلامی m. eslami علی سلیمانی a. soleimani   محمد سعید شیخ رضایی ms. sheykh rezaee

بیان مسأله: پاکسازی و شکل دهی کانال یکی از گامهای مهم در درمان ریشه دندان می باشد. در این مورد هر روزه وسایل جدیدی توسط شرکتهای مختلف طراحی و وارد بازار می شوند.هدف: مطالعه حاضر با هدف مقایسه میزان کارایی روشهای چرخشی profile، protaper، flex master و دستی niti k-file در آماده سازی کانال ریشه انجام شد. روش بررسی: در این مطالعه تجربی آزمایشگاهی 80 ریشه مزیال دندانهای مولر فک پایین انسان که تازه ب...

ژورنال: مجله دندانپزشکی 2004
آشفته یزدی, کاظم, اسلامی, محمد, سلیمانی, علی, شیخ‌رضایی, محمد سعید,

Statement of Problem: Root canal cleaning and shaping are important steps in endodontic therapy. In order to develop better techniques, new instruments are constantly designed and delivered to the market.Purpose: The aim of the present study was to compare the effectiveness of one manual with three rotary root canal instrumentations techniques.Materials and Methods: In this in-vitro study, 80 m...

Journal: :dental research journal 0
m. h. zarrabi m. bidar h. jafarzadeh a. talati

introduction various kinds of hand-held or rotary techniques are used for mechanical preparation of the canal. the purpose of this study was to assess the influence of the number of applications on apical extrusion of debris in conventional and two rotary instrumentation techniques (profile, flex master). methods and materials in this in vitro study, 75 extracted single-rooted human mandibular ...

2009
Kiumars Nazari Moghaddam Majid Mehran Hamideh Farajian Zadeh

INTRODUCTION Pulpectomy of primary teeth is commonly carried out with hand files and broaches; a tricky and time consuming procedure. The purpose of this in vitro study was to compare the cleaning efficacy and time taken for instrumentation of deciduous molars using hand K-files and Flex Master rotary system. MATERIALS AND METHODS In this study, 68 canals of 23 extracted primary molars with a...

Journal: :iranian endodontic journal 0
zahed mohammadi department of endodontics, dental school, shahid sadoughi university of medical sciences, yazd, iran abbasali khademi department of endodontics, dental school, isfahan university of medical sciences, isfahan, iran

introduction: all instrumentation techniques have been reported to be associated with extrusion of infected debris. the aim of this study was to evaluate the number of bacteria extruded apically from extracted teeth ex vivo after canal instrumentation using the two engine-driven techniques utilizing nickel-titanium instruments (flex master and mtwo). materials and methods: seventy extracted max...

Journal: :iranian endodontic journal 0
shahrzad nazari department of endodontic, dental school, hamedan university of medical sciences, hamedan, iran. [email protected] farshid mirmotalebi department of prosthodontic, dental school, hamedan university of medical sciences, hamedan, iran

introduction: the purpose of the present study was to quantify and compare the amount of extruded debris from apical foramen after instrumentation of the root canal system with hand and rotary instruments. materials and methods: root canals of forty five fresh extracted single rooted human teeth with mature apexes and less than 15 degree of root curvature were instrumented in group a with stain...

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