نتایج جستجو برای: coronal seal

تعداد نتایج: 27644  

2016
K Nanda Kumar M Pratap Kumar Sohel Ahmed

Background: The objective of three-dimensional obturation is to completely seal the canal system from any bacterial ingress from the oral cavity and periradicular tissues. The aim of the study to compare the push-out bond strength of the smart seal C-point obturating system with epiphany resilon obturation system and the gold standard gutta-percha/AH plus system. Materials and Methods: Thirty e...

2013
J Modaresi M Baharizade A Shareghi M Ahmadi A Daneshkazemi

STATEMENT OF PROBLEM Most failures of root canal treatments are caused by bacteria. Studies showed that the most common cause of endodontic failures were the incomplete obturation of the root canal and the lack of adequate apical seal. Some in-vitro methods are used to estimate sealing quality, generally by measuring microleakage that allows the tracer agent to penetrate the filled canal. PUR...

Journal: :Journal of medical genetics 1987
I D Young

The term 'craniofrontonasal dysplasia' (CFND) was introduced by Cohen' in 1979 when describing a 14 year old girl with coronal craniosynostosis, hypertelorism, limitation of shoulder movement, and digital abnormalities. The child's mother was also affected. In the same volume of Birth Defects, Slover and Sujansky2 reported similar findings in three female sibs, both of whose parents had hyperte...

Journal: :International Journal of Medical Science And Diagnosis Research 2022

Endodontic treatment failure can be caused by a variety of factors, including bacterial persistence, improperly cleaned and obturated root canals, faulty coronal seal (leakage), untreated canals (missed canals). The presence bacteria such as Enterococcus (E.) faecalis inside the canal system is most common cause endodontic failure. These are more resistant to disinfectants, resulting in an infe...

Journal: :Journal of endodontics 1982
Emre Bodrumlu Umut Tunga

BACKGROUND AND OBJECTIVE To date, many different materials have been proposed for root canal fillings, but gutta-percha (used with various types of sealers) has remained the material of choice for over a century. A new root canal obturation system, the Epiphany endodontic obturation system, has been developed to replace gutta-percha and traditional sealers for root canal obturation. The purpose...

2015
Mohammad Frough Reyhani Hamidreza Yavari Negin Ghasemi Saeed Rahimi Mohammad Hosien Soroush Barhaghi Hadi Mokhtari Payman Sarikhani

INTRODUCTION The aim of this study was to compare the coronal seal of different thicknesses of MTA with gutta-percha after post space preparation. MATERIALS AND METHODS A total of 50 maxillary central incisors randomly divided into 5 experimental groups (n = 8). After preparation of the root canals with step back technique, in groups 1 and 2, post spaces were prepared and 4 or 5 mm gutta-perc...

ژورنال: مجله دندانپزشکی 2007
اعتصامی, لیلا, ساعتچی, مسعود,

Background and Aim: The final objective of root canal therapy is to create a hermetic seal along the length of the root canal system from the coronal opening to the apical termination and to accomplish the best adaptation of obturation material with canal walls. The purpose of this study was to compare the microleakage during lateral condensation of 0.04 and 0.02 tapered gutta-percha master con...

Armita Rouhani Fateme Zoormand Ghasemi Majid Akbari Shima Mosivand

Introduction: After endodontic procedures, root canal reinfection is a main concern for dentists. However, application of a proper apical seal can prevent such contamination. Therefore, it seems necessary to study the factors affecting the development of a suitable apical seal. Materials and Methods: In this study, 64 extracted human single-canal premolars were used. An equal length of roots wa...

2015
Johannes Ebert Roland Frankenberger Christina Karl Anselm Petschelt Matthias Johannes Roggendorf

Introduction: The purpose of this study was to test different sealer removal protocols following root canal filling before adhesive seal of access cavities. Material and methods: Forty single root teeth were selected for the study, prepared to size 60 taper .02, and filled with AH plus and a single gutta-percha cone size 55 taper .02. Excess sealer was removed with: ethanol-moisturised foam pel...

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