نتایج جستجو برای: root perforation

تعداد نتایج: 156672  

پایان نامه :0 1371

the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...

Journal: :JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH 2018

2017
Jardel Camilo do Carmo Monteiro Mateus Rodrigues Tonetto Matheus Coêlho Bandeca Alvaro Henrique Borges José Cláudio Martins Segalla Keren Cristina Fagundes Jordão-Basso Cristian Fernando Sanchez-Puetate Milton Carlos Kuga

Teeth with furcal perforation present difficult resolution and dubious prognosis. Several materials have been proposed and calcium silicate-based cements such as mineral trioxide aggregate (MTA) are the most recommended. However, its long-term clinical behavior still remains poorly understood. The present study reports a clinical case of furcal perforation repair using Angelus MTA, with a 7-yea...

Journal: :Acta medica Okayama 2007
Tatsuto Ashizawa Koichiro Hama Hiroaki Tanaka Masayuki Ando

A 64-year-old woman was admitted to our hospital with lower abdominal pain. Routine laboratory values were unremarkable except for the white blood cell count (15,000/micro litter) and the C-reactive protein (CRP) value (22.5 mg/dl). A Computed tomography (CT) scan revealed air collection in the middle of the anterior pararenal space. One day later, CT revealed air collection in the anterior par...

Journal: :iranian endodontic journal 0
nahid mohammadzadeh akhlaghi dental branch of islamic azad university,tehran ladan baradaran mohajeri dental branch of islamic azad university,tehran mahta fazlyab dental branch of islamic azad university,tehran

for many years, gutta-percha has been the root canal filling material of choice. chloroform is one of the most efficient solvents widely used for gutta-percha removal in retreatment cases, despite being toxic and carcinogenic. the present case report discusses a chloroform extrusion through an existing perforation to the surrounding periodontal ligament space and subsequent necrosis in supporti...

Journal: :Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics 2006
Tibor Bartha Matthias Kalwitzki Claus Löst Roland Weiger

OBJECTIVE The objective of this study was to compare 2 preparation techniques performed under simulated clinical conditions with extended apical enlargement following determination of the optimal apical preparation size (APS). STUDY DESIGN After preflaring 240 root canals, APS was evaluated as outlined in Part I. The apical portion was shaped to APS either with rotary NiTi Lightspeed instrume...

2013
Roza Haghgoo Farid Abbasi

INTRODUCTION Furcal perforations are one of the most challenging causes of endodontic failures. Several materials including MTA have been used for non surgical repair of these perforations. The aim of this study was to compare treatment outcome of furcal perforation treatment in primary molars using Root MTA and ProRoot MTA. MATERIALS AND METHODS This in vitro study was conducted on 54 primar...

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