نتایج جستجو برای: Implant stability

تعداد نتایج: 344005  

Journal: :journal of dentistry, tehran university of medical sciences 0
rokhsareh sadeghi amir reza rokn asghar miremadi

objectives: implant primary stability is one of the important factors in achieving implant success. the osteotome technique may improve primary stability in patients with poor bone quality. the aim of this study was to compare implant stability using two different techniques namely osteotome versus conventional drilling in the posterior maxilla. materials and methods: in this controlled randomi...

Bohluli, B, Chehelamiran, M, Danesh, S, Malekpour, Z, Sezavar, M, Shahriar, A,

Background and aim: The most common method of increasing implant stability in the posterior maxilla comprises the reinforcement of bone height using bone grafts in sinus lift surgery. The purpose of the present study was to compare autogenous and allogeneic bone grafts in implant stability after open sinus lift surgery. Materials and methods: This split-mouth clinical trial compared the implant...

Journal: :journal of periodontology and implant dentistry 0
majid reza mokhtari mehrdad radvar naser sargolzaie amir moeintagavi

background and aims. resonance frequency analysis (rfa) offers a noninvasive clinical measurement of stability and osseointegration of implants; it is a useful tool to establish implant loading time. the rfa values are represented by a quantitative unit called the implant stability quotient (isq) on a scale from 1 to 100. the aim of the present study was to measure the stability of astra tech a...

ژورنال: مجله دندانپزشکی 2011
زندی, ابوطالب, عاطفی, احسان, ملاک زاده, محمدرضا,

Background and Aims: Relative displacement of the implant with respect to bone and quality of bone-implant contact play critical roles in the dental implant stability. The goal of this study was to investigate the dental implant stability using non-linear finite elements method. Therefore, bone-implant relative displacement due to applied force to the implant was calculated, and then an appropr...

Journal: :journal of dental materials and techniques 0
amir moeintaghavi 1professor. oral and maxillofacial diseases research center, school of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) habibollah ghanbari 1professor. oral and maxillofacial diseases research center, school of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) mehrdad radvar dental research center, school of dentistry, mashhad university, medical sciences, mashhad, iran naser sargolzaei dental materials research center, school of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) hamed nicknam periodontist

background and aim:  although there have been substantial developments in dental implant therapies, achieving good implant stability (isq >60) for implants inserted in augmented sinus sites appears to be challenging in comparison with non-augmented sites due to the high prevalence of bone resorption in posterior regions of maxilla. this study aimed to evaluate and compare the time required to a...

Journal: :journal of periodontology and implant dentistry 0
mohammad ketabi narges fahami shahram amini

background and aims: plasma rich in growth factors (prgfs) has been recently proposed as an aid to enhance regeneration of osseous and epithelial tissues in oral surgery. the purpose of this study was to determine the effect of local application of platelet rich plasma (prp) on implant stability measured by periotest. materials and methods: a total of 24 implants were placed in mandible of 12 l...

Journal: :journal of dentistry, tehran university of medical sciences 0
ar. rokn associate professor, department of periodontics, school of dentistry, tehran university of medical s aar. rasouli ghahroudi 3assistant professor, dental research center, tehran university of medical sciences, tehran, iran a. mesgarzadeh associate professor, department of oral and maxillofacial surgery, school of dentistry, tehran unive aa. miremadi associate professor, department of periodontics, school of dentistry, tehran university of medical s s. yaghoobi assistant professor, dental research center, tehran university of medical sciences, tehran, iran

objective: to determine the pattern of stability changes as a reflection of early healing around single-stage roughened-surface implants in humans utilizing resonance frequency analysis (rfa). materials and methods: hundred twenty-five patients who demanded dental implants were treated with two different implant (nobel biocare replacetm and strummantm iti) systems. bone type was classified into...

Journal: :journal of dentistry, tehran university of medical sciences 0
ar. rokn associate professor, department of periodontics, school of dentistry, tehran university of medical s aar. rasouli ghahroudi assistant professor, department of periodontics, school of dentistry, tehran university of medical s as. miremadi associate professor, department of oral and maxillofacial surgery, school of dentistry, tehran unive mj. kharazi fard statistical consultant, dental research center, tehran university of medical sciences, tehran, iran a. mesgarzadeh associate professor, department of oral and maxillofacial surgery, school of dentistry, tehran unive

objective: to assess the stability changes as a reflection of early healing around roughened- surface implants in human by resonance frequency analysis (rfa). materials and methods: one hundred and fifty one iti sla implants were placed in either maxilla or mandible of 68 patients. bone type was classified into 4 groups according to lekholm and zarb index. rfa was used for direct implant stabil...

Journal: :journal of dentistry, tehran university of medical sciences 0
hamidreza barikani dental implant research center, tehran university of medical sciences tehran, iran. shadab rashtak dental implant research center, tehran university of medical sciences tehran, iran. soolmaz akbari dental implant research center, tehran university of medical sciences tehran, iran. samareh badri dental implant research center, tehran university of medical sciences tehran, iran. niloufar daneshparvar dental student, tehran university of medical sciences tehran, iran. amirreza rokn associated professor, dental implant research center and periodontics department, tehran university of medical sciences tehran, iran.

the focus of this paper is to evaluate the influence of mechanical characteristics of the implant on primary stability in different bone types, based on resonance frequency analysis (rfa).a number of 60 nobel biocare replace select tiunit tapered implants of two different lengths (10 mm and 13 mm) and three different widths as 3.4 mm (narrow platform (np)), 4.3 mm (regular platform (rp)) and 5 ...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1391

مقدمه وهدف : میزان موفقیت مواد بکار رفته در جراحی های بالا بردن کف سینوس ماگزیلا و همچنین ثبات ایمپلنت های قرار گرفته در این نواحی همواره مطرح است لذا این مطالعه با هدف مقایسه ارتفاع استخوان و میزان ثبات ایمپلنت های کاشته شده به طور همزمان با جراحی بالا بردن کف سینوس ماگزیلا با استفاده از مواد bio-oss و nanobone با استفاده از آنالیز فرکانس انعکاسی و تصاویر cbct بود. مواد و روشها : در ابتدا بیم...

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