نتایج جستجو برای: root canal preparation tooth fracture

تعداد نتایج: 501235  

2011
Fernando Branco Barletta Fabiana Soares Grecca Márcia Helena Wagner Ronise Ferreira Fernanda Ullmann Lopez

Case description: A 32 years old, male patient had suffered subluxation of teeth 12 and 13 and coronal fracture involving enamel and dentin, as well as pulp exposition, of tooth 14 because of a motorcycle accident. The man was given dental assistance and a semi-rigid splinting of teeth numbers 12 and 13 was carried out followed by the root canal treatment in a single visit on tooth no. 14. At 3...

2008
Allahyar Geramy Mohammad Jafar Eghbal Sara Ehsani

INTRODUCTION The fracture strength of endodontically treated teeth compared to vital ones has long been a source of controversy. It is not clear how root canal therapy affects the stress distribution in teeth. The purpose of this study was to evaluate the changes in stress distribution after root canal therapy in a human maxillary canine by finite element analysis (FEM). MATERIALS AND METHODS...

Journal: :University of Toronto dental journal 1989
A Moosa

Procedure Following nonsurgical root canal treatment, a post space is created in the root canal by careful removal of the coronal canal obturating material. A sufficient amount of material must be retained in the apical portion of the canal to maintain an adequate apical seal. A custom or proprietary post is fitted and cemented into the root canal for core retention. The post should be passivel...

Journal: :journal of dentistry, tehran university of medical sciences 0
sedigheh khedmat sohayla mohamadian fatemeh dibaji mohamad javad kharrazifard

objectives: this study aimed to assess the radicular wall thickness in mandibular incisors with two canals and find the maximum and minimum thickness to prevent root canal treatment (rct) procedural errors. materials and methods: a total of 160 extracted mandibular incisors were selected and radiographed; out of which, 55 had two canals. three parallel transverse sections were made in each toot...

Journal: :iranian endodontic journal 0
sohrab tour savadkouhi mahta fazlyab

tooth discoloration induced by endodontic sealers, is a common finding that impairs aesthetic outcome of endodontic treatment. the aim of the present mini literature review, was to summarize the existing data on discoloration potential of different endodontic sealers. the research covered the article published in pubmed and google scholar from 2000 to 2015. the searched keywords included ‘tooth...

Journal: :iranian endodontic journal 0
allahyar geramy department of orthodontics, dental school, dental research center, tehran university of medical sciences, tehran, iran mohammad jafar eghbal department of endodontics, iranian center for endodontic research, dental research center, dental school, shahid beheshti university of medical sciences, tehran, iran sara ehsani oral radiologist, dental research center, shahid beheshti university of medical sciences, tehran, iran

introduction: the fracture strength of endodontically treated teeth compared to vital ones has long been a source of controversy. it is not clear how root canal therapy affects the stress distribution in teeth. the purpose of this study was to evaluate the changes in stress distribution after root canal therapy in a human maxillary canine by finite element analysis (fem). materials and methods:...

Journal: :The journal of contemporary dental practice 2014
Anastasios Dimitrios Koursoumis Nikolaos P Kerezoudis Afrodite Kakaboura

AIM The purpose of this study was to assess in vitro the tooth color alterations associated with two commonly used endodontic irrigants, the chlorhexidine gluconate (CHX) and the sodium hypochlorite (NaOCl) up to 15 days post-treatment. Additionally, the possible influence of endodontic access preparation on tooth color was investigated. MATERIALS AND METHODS Thirty intact human anterior teet...

2013
Hengameh Ashraf Golnaz Momeni Nima Moradi Majd Hamed Homayouni

INTRODUCTION Dentin removal during root canal instrumentation creates a weaker root structure and increases its potential to fracture. The aim of this in vitro experimental study was to compare fracture resistance of teeth filled with gutta-percha, and Resilon using two different techniques. MATERIALS AND METHODS This study was performed on 105 single-canal extracted maxillary incisors. Sampl...

2012
Mainak Kanti Saha

Coronal fractures of permanent dentition are the most frequent type of dental injury. If the original tooth fragment is retained following fracture, the natural tooth structures can be reattached using adhesive protocols. The development and use of fiber-reinforced composite root canal posts make possible the reattachment of the crown esthetically. This case report presents a clinical technique...

2012
Sameer D Jain

HYBROSONIC : The name derives from Heat + Sonic Vibration. The invention relates to Root Canal Obturating Device for fillling of Root Canal after removal of tooth pulp. Root canal treatment is the removal of tooth’s pulp, a small thread like tissue in the centre of the tooth. Proper root canal filling should achieve three dimensional obturation of the root canal space to prevent micro organisms...

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