نتایج جستجو برای: post and core

تعداد نتایج: 16914042  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1393

the purpose of this study was to examine the comparative effect of story retelling and role playing on efl learners’ vocabulary learning and reading comprehension. to carry out the purpose of the study 90 female learners of tabarestan language school located in noshahr were non-randomly selected. they took pet test and among these 90 participants 62 students were selected as homogenous learners...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1390

the purpose of the present study was to see which one of the two instruction-processing instruction (pi) and meaningful output based instruction (mobi) accompanied with prompt and recast- is more effective on efl learners’ writing accuracy. in order to homogenize the participants in term of language proficiency a preliminary english test (pet) was administrated between 74 intermediate students ...

Journal: :journal of dentistry, shiraz university of medical sciences 0
amir ali reza khaledi dept. of prosthodontic, school of dentistry, shiraz university of medical sciences, shiraz, iran. shekufe sheykhian students’ research committee, school of dentistry, international branch, shiraz university of medical sciences, shiraz, iran. arash khodaei students’ research committee, school of dentistry, international branch, shiraz university of medical sciences, shiraz, iran.

statement of the problem: the survival of pulpless teeth restored with different post and core systems is still a controversial issue. purpose: this study compared the retention of two different post and core systems and also the fracture resistance of teeth restored with these systems. material and method: eighty endodontically treated maxillary central incisors were sectioned perpendicular to...

پایان نامه :0 1374

the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - دانشکده زبانهای خارجی 1393

previous studies regarding teachers’ beliefs have revealed that teachers’ beliefs have influence on their classroom practices. the current study aimed to investigate the effect of teachers’ beliefs about teaching reading strategies on students’ motivation and success in reading comprehension in the context of english teaching as a foreign language in high schools of mazandaran, iran. data were ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم بهزیستی و توانبخشی - دانشکده توانبخشی 1393

abstract objectives gradual increase length and complexity of utterance (gilcu) therapy method is a form of operant conditioning. this type of treatment is very precise and controlled that is done in 54 steps in 3 speech situations consisted of monologue, reading and conversation. this study aimed to examine the effects of gilcu treatment method on reduction of speech dysfluency of school-age...

ژورنال: مجله دندانپزشکی 2007
فرزین‌ ابراهیمی, شهرام, کرمانشاه, حمید,

Background and Aim: All ceramic, inlay-retained resin bonded fixed partial denture is a conservative method for replacement of missing teeth, because of minimal tooth reduction. The connector between the retainer and the pontic is the weak point of these bridges. Reinforcement of ceramic core will increase the clinical longevity. The aim of this study was to determine the effect of zirconia on ...

Introduction: The purpose of this study was to compare dimensional changes of two types of auto polymerizing acrylic resin patterns (APARPs) in three different storing environments. Methods: 60 acrylic post and core patterns were made of two types of Duralay acrylic resins (Aria dent, Iran and Reliance, Dental Mfg. Co, USA) using a canine model. Then coronal, apical diameter and coronoapical le...

Journal: :journal of dentistry, tehran university of medical sciences 0
farideh geramipanah associate professor, dental implant research center, department of prosthodontics, faculty of dentistry, tehran university of medical sciences, tehran, iran. susan mir mohammad rezaei saman fallahi sichani babak fallahi sichani leyla sadighpour

the effects of closely adapting a prefabricated fiber to the post space remain unknown. the purpose of this study was to quantify the microleakages of a custom adapted fiber-reinforced post, a prefabricated quartz fiber post and a cast post using nondestructive methods.sixty-five extracted human premolars were endodontically treated and randomly divided into three groups (n=15), which were rest...

Ebrahimi, Maziyar, Hosseini, Peymaneh, Khosravi, Kazem, Malekipoor, Mohammad reza, Savabi Isfahani, Omid,

Effects of core preparation time on the retention of cemented cast post Dr. O. Savabi Isfahani*-Dr. K. Khosravi**- Dr. M. Ebrahimi***- Dr. P. Hosseini***- Dr.MR. Malekipoor**** *- Associate Professor of Prosthodontics Dept.-Faculty of Dentistry – Isfahan University of Medical Sciences. **- Associate Professor of Operative Dentistry Dept.-Faculty of Dentistry – Isfahan University of Medical Scie...

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