نتایج جستجو برای: apical seal

تعداد نتایج: 44008  

2014
Anna Kierklo Rafał Petryniak Marek Dohnalik Małgorzata Jaworska

Within the limitations of this study, our results indicate that microtomography, with proposed semi-automatic algorithm, is a useful tools for three-dimensional quantitative evaluation of dental root canal fillings. In canals filled with thermoplastic gutta-percha and Tubli-Seal, voids at the interface between the filling and canal dentine deserve special attention due to of their periapical lo...

Journal: :iranian endodontic journal 0
fatemeh ayatollahi mahdi tabrizizadeh milad hazeri baqdad abad reza ayatollahi fatemeh zare bidoki

introduction: microleakage is of the causes of endodontic treatment failure. the aim of this in vitro study, was to compare the microleakage of mineral trioxide aggregate (mta) and calcium-enriched mixture (cem) cement apical plugs in three environments. methods and materials: a total of 130 human extracted single rooted teeth were collected. after decoronation, preparation of the root canal sp...

Journal: :journal of dental research, dental clinics, dental prospects 0
richa singh rama dental college, hospital and research centre, kanpur, uttar pradesh shankarappa pushpa rama dental college, hospital and research centre, kanpur, uttar pradesh doraiswamy arunagiri maharana pratap dental college, kanpur, uttar pradesh asheesh sawhny rama dental college, hospital and research centre, kanpur, uttar pradesh abhinav misra rama dental college, hospital and research centre, kanpur, uttar pradesh ramamurthy sujatha rama medical college, hospital and research centre. kanpur, uttar pradesh

background. maximum sealing ability or adhesion of endodontic sealers can be achieved after an effective removal of smear layer. endodontic irrigants assist in adequate removal of smear layer and thus improve the retention mechanism. the aim of this study was to evaluate the effect of two different root canal irrigating solutions (5.25% naocl followed by 17% edta and qmix) on the apical sealing...

Journal: :Open Access Macedonian Journal of Medical Sciences 2022

Aim: This study was designed to investigate the effect of different final irrigation protocols on apical sealing ability bioceramic and epoxy resin-based sealers.
 Materials methods: Thirty human single-rooted mandibular premolars were instrumented using ProTaper Next rotary files. Teeth randomly divided into three groups according regimen; Group I: 5 ml 0.2% CNPs/3 min, II: 2.5 CNPs/1.5 m...

2009
Zvi Metzger Itzhak Abramovitz Gunnar Bergenholtz

Apical periodontitis is an inflammatory lesion in the periodontal tissues that is caused mostly by bacterial elements derived from the infected root canal system of teeth (Core concept 7.1). In non-treated teeth apical periodontitis represents a defensive response to a primary infection in a necrotic pulp. Apical periodontitis may also develop due to a secondary infection subsequent to endodont...

2015
P R Pradeep Kiran J Kasti S Ananthakrishna T N Raghu R Vikram

BACKGROUND Regardless of the technique and the material used, the goal of obturation remained the same that is to seal every portal of exit in the root canal system. It's not only the apical openings that need to be sealed but also lateral openings, coronal access opening and perforations if they exist failure of the adhesive root canal sealer has led to the idea of usage of dentin bonding agen...

Journal: :journal of dentistry, tehran university of medical sciences 0
m. saatchi l. etesami

statement of problem: it has been established that successful root canal treatment depends on the quality of obturation. deeper penetration of spreaders can improve the apical seal and the quality of the obturation. purpose: the aim of this study was to compare the initial penetration depth of spreaders during lateral condensation of 0.04 and 0.02 tapered gutta-percha master cones. materials an...

2001
Darshana dave

BACKGROUND: It's often necessary to fabricate a post & core for restoration of an endodontically treated tooth. One of the important step in post & core technique is preparation of post space by removal of gutta-percha from root canal leaving 3 5mm at the apex, so that the apical seal is not disturbed. Objective of this study to evaluate effect of various methods of gutta-percha removal on apic...

Journal: :European Journal of Dentistry 2008
Mustafa Murat Kocak Ozgur Er Baran Can Saglam Sis Yaman

OBJECTIVES The aim of this study was to assess the apical sealing ability of different core materials used with Epiphany(TM) sealer and to evaluate the effect of Resilon/Epiphany(TM) system on creating an apical mono-block seal. METHODS Fifty-five extracted human teeth were used. Forty-five were selected and randomly divided into three groups and ten teeth were used as positive and negative c...

2014
Maryam Ehsani Atena Dehghani Farida Abesi Soraya Khafri Sara Ghadiri Dehkordi

Background and aims. With availability of hydrophilic sealers, drying of the canals before endodontic obturation is still a matter of debate. The aim of this study was to compare the apical micro-leakage of AH26, Excite DSC, MTA Fillapex, and ZOE sealers in dry and moist root canals. Materials and methods. This experimental study was performed on 90 extracted maxillary central incisors. Rotary ...

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