نتایج جستجو برای: سیلر ah26
تعداد نتایج: 318 فیلتر نتایج به سال:
introduction: blood contamination of the canal during preparation can be a major problem in endodontics; this may result in apical microleakage. the aim of this in vitro study was to evaluate the effect of blood on apical microleakage of a resin-based root canal sealer (ah26) and a polymer-based root canal sealer (epiphany). materials & methods: in this experimental study, 50 decoronated centra...
در این تحقیق، هدف بررسی اثر کیفیت پرداخت سطح چوب بر مقاومت چسبندگی برخی از شفاف پوشهها بود به همین منظور نمونههای چوبی از سه گونه گردو، راش و چنار با رطوبت 8 درصد به ابعاد 10×100×300 میلیمتر تهیه و در دو سطح با درجه سنبادههای 180-160-100 و 360-160-100 در جهت الیاف پرداخت گردیدند. سطوح نمونهها با شفاف پوشه در دو فرآیند جداگانه سیلر- کیلر و سیلر- کیلر- نیم پلیاستر پوشش داده شدند. نتایج نشان...
An investigation on the adhesion of two endodontic sealers AH 26, Dorifill) to dentin ( * - Dr. S. Khedmat** Dr. M. Khorramdoost*- Assistant professor of Endodontics Dept. Faculty of Dentistry Tehran University of Medical Sciences. ** - Dentist. Background and aim: Tensile bond strength of endodontic sealers to dentin is an indicative of sealer's adhesion to dentin. Due to the fact that Gutta...
زمینه و هدف: سیل مناسب، لازمه درمان های اندودانتیک موفق ازجمله درمان پلاگ اپیکالی می باشد. برخی مطالعات نشان داده اند که مایعات بافتی می توانند تاثیر منفی بر توانایی سیل بگذارند. هدف از این مطالعه بررسی توانایی سیل کنندگی سمان CEM در شرایط کانال خشک، آلوده به خون و آلوده به بزاق بود. مواد و روش ها: تاج 70 دندان تک ریشه و تک کانال کشیده انسان از ناحیه CEJ قطع شد. آماده سازی ناحیه اپیکال ک...
Aim: This study aimed to assess and compare the fracture resistance of simulated immature teeth reinforced with Biodentine (BD) and mineral trioxide aggregate (MTA) as apical barriers and two root canal backfilling combination (gutta-percha/AH26, MetaSeal). Materials and methods: A total of 70 extracted human maxillary incisors were randomly divided into seven groups (n = 10). The positive cont...
The purpose of this study was to determine the effect of ultrasonic vibration on the force required to remove prefabricated posts. Ninety-six extracted human canines were divided into eight groups, which were prepared and obturated with gutta-percha and either a eugenol-containing (Roth's 801 Elite) or eugenol-free (AH26) sealer. Titanium #6 Parapost XH posts were cemented with either zinc phos...
OBJECTIVE This study was performed to determine in vitro the short- and long-term sealing ability of a recently developed silicon-based root canal filling material (Gutta-Flow). STUDY DESIGN Sixty human upper central incisors were divided into 3 groups (n = 20). The root canals were instrumented and obturated with laterally compacted gutta-percha and AH26 sealer (group 1), continuous-wave the...
BACKGROUND To evaluate and compare in vitro the antibacterial efficacy of five antibiotics when added individually to five endodontic sealers against Enterococcus faecalis (EF). MATERIALS & METHODS This controlled trial with systematic allocation method was carried out to detect the combined antibacterial activity of five endodontic sealers (Kerr sealer EWT, Endomethasone, AH26, AH Plus, Roek...
Introduction: The materials used for obturation of root canal system may be extruded through apical foramen into the periapical tissue. Therefore, biocompatibility of these materials is very important. The purpose of this study was to evaluate the in vivo biocompatibility of three conventional endodontic sealers: AH26, Roth 801, and ZOE after their subcutaneous implantation in rats. Methods: Tw...
The efficacy of ultrasonic retreatment, 3 months after obturation, in conjunction with Ketac-Endo, Roth's 801, and AH26 sealers was evaluated. Seventy-two root canals were prepared and obturated with gutta-percha and one of the sealers mentioned above. After 90 days, the canals were retreated by an ultrasonic technique and the retreatment time was recorded. The roots were split and the amount o...
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