نتایج جستجو برای: root end filling

تعداد نتایج: 566591  

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 dentistry, tehran university of medical sciences 0
m. zarabian h. razmi mr. sharifian d. sharifi f. sasani a. mousavi

statement of the problem: endodontic surgery if required is considered as an additive therapy after classic endodontic treatments. the most prevalent type of endodontic surgeries are apicoectomy and corrective surgeries. type of material applied in apicoectomies is of high importance. root end filling material should not only be biocompatible but also provide appropriate seal. considering these...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
سعید عسگری saeed asgari iranian for endodontic research & dental school, shahid beheshti university of medical sciences ([email protected])مرکز تحقیقات اندودانتیکس و مرکز تحقیقات علوم دندانپزشکی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. الهام سهیلی پور elham soheilipour

background and aim: the main goal of endodontic treatments is eliminating the etiologic factors of pulpal and periapical diseases as well as maintaining this condition via providing a hermetic seal between periodontium and root canal system. if these were not possible through orthograde approach, periradicular surgery and root-end filling are indicated. review of literature: different materials...

Journal: :iranian endodontic journal 0
mohammad asnaashari department of endodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. [email protected] saeed asgary department of endodontics, dental research center, dental school, shahid beheshti university of medical sciences, tehran, iran asef khatami general practitioner, tehran, iran

introduction: the purpose of this study was to compare the ability of proroot mineral trioxide aggregate (pmta) and root mineral trioxide aggregate (rmta) as root-end filling materials, and portland cement (pc) to prevent bacterial leakage through filled root end cavities. materials and methods: fifty-one extracted human single rooted teeth were cleaned and shaped using a step back technique. t...

Journal: :Scripta Scientifica Medicinae Dentalis 2015

Journal: :iranian endodontic journal 0
ali kangarlou department of endodontics, iranian center for endodontic research, dental school, shahid beheshti university of medical sciences, tehran, iran. samira sofiabadi general dentist. zahra yadegari researcher, dental school, shahid beheshti university of medical sciences, tehran, iran. saeed asgary department, iranian center for endodontic research, dental research center, dental school, shahid beheshti university of medical sciences, tehran, iran.

introduction: the purpose of this ex vivo study was to assess the effect of two root-end filling materials against candida (c) albicans . materials and methods: proroot mta and cem cement were compared immediately and 24 h after mixing, in two different concentrations (50 and 100 mg/ml). a total of 50 culture wells were used and divided into experimental (n=10) and control groups (n=5). those w...

Journal: :iranian endodontic journal 0
shahriar shahriari farhad faramarzi mohammad-yousef alikhani maryam farhadian seyedeh sareh hendi

introduction:  this  in vitro  study compared the apical sealing ability of three common root end filling materials namely mineral trioxide aggregate (mta), intermediate restorative material (irm) and calcium-enriched mixture (cem) cement using a bacterial leakage model.  methods and materials: the study was conducted on 83 single-rooted human teeth. tooth crowns were cut and root canals were p...

Journal: :iranian endodontic journal 0
shuang shi dan-dan zhang xu chen zhi-fan bao ya-juan guo

introduction: this study compared the apical sealing ability of a bioceramic based root canal repair filling material (iroot fs) with mineral trioxide aggregate (mta). methods and materials: forty single-canal teeth were prepared and randomly divided into two experimental groups ( n =18) and two control groups ( n =2). teeth in experimental groups were retrofilled with either mta or iroot fs. a...

Journal: :iranian endodontic journal 0
maryam bidar department of endodontics, dental research center, dental school, mashad university of medical sciences, mashad, iran jalil tavakkol afshari department of immunology, medical school, mashad university of medical sciences, mashad, iran fatemeh shahrami department of endodontics, dental research center, dental school, mashad university of medical sciences, mashad, iran

introduction: osteoblasts and periodontal ligament cells are major cells for wound healing after root end resection. the interaction of osteoblasts with filling materials could play a critical role in healing of surgical lesion. adhesion and spreading of cells on material surface are the initial phase for cellular function. the purpose of the present study was the evaluation of morphology and a...

Journal: :iranian endodontic journal 0
saeed asgary department of endodontics, iranian center for endodontic research, dental school, shahid beheshti university of medical sciences, tehran, iran. [email protected] mohammad jafar eghbal department of endodontics, iran center for dental research, dental school, shahid beheshti university of medical sciences, tehran, iran masoud parirokh department of endodontics, dental school, kerman university of medical sciences, kerman, iran hassan torabzadeh department of dental material science, dental school, shahid beheshti university of medical sciences, tehran, iran

introduction: the purpose of this study was to compare the sealability of three different commercial types of mineral trioxide aggregate (mta) and calcium enrichment mixture (cem) cement as an experimental root-end filling material. materials and methods: forty-six single rooted teeth were cleaned, shaped, and obturated. the apical 3 mm of each root was resected and root-end cavities with 3 mm ...

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