نتایج جستجو برای: implant supported by the periodontium

تعداد نتایج: 17023193  

Journal: :The International journal of periodontics & restorative dentistry 2010
Michael Stimmelmayr Edward P Allen Torsten E Reichert Gerhard Iglhaut

An esthetic implant-supported rehabilitation continues to be a major challenge in patients with a thin periodontium. Ridge preservation and immediate implant placement are intended to preserve the hard tissue volume and prevent preimplant bone loss following tooth extraction. Since these techniques are almost always combined with bone grafting, primary wound closure is indispensable. Therefore,...

2017

The purposes of this study is to evaluate the prevalence of peri-implant diseases; mucositis and periimplantitis of patients received dental implant at Riyadh city, KSA. In addition to the assessment of the relationship between peri-implant diseases and other related risk factors such as plaque accumulation, smoking, diabetes, and overall periodontal condition. A cross-sectional study was carri...

Introduction: Evaluating the frequency of complications in implant supported prosthesis such as screw loosening and porcelain fracture is important for prevention and management of these problems. The purpose of this study was to evaluate the frequency of implant-supported fixed prosthesis complications in Yazd dental school  in 2020. Methods: In this descriptive cross-sectional study, the pat...

Journal: :journal of dentistry, tehran university of medical sciences 0
farhad tabatabaian assistant professor, department of prosthodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. abolfazl saboury associate professor, department of prosthodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. zahra sadat sobhani former student, dental school of shahid beheshti university of medical sciences, tehran, iran. vicki c petropoulos associate professor, department of preventive and restorative sciences, university of pennsylvania school of dental medicine, united states.

the effect of inter-implant distance on retention and resistance of implant-tissue-supported overdentures is lacking in the literature. an in vitro study was performed to evaluate this effect for mandibular implant-tissue-supported overdentures retained by two ball attachments.an acrylic cast of an edentulous mandible was fabricated. three pairs of implants were symmetrically placed at both sid...

Journal: :journal of dentistry, tehran university of medical sciences 0
a. fazel associate professor, department of prosthodontics, school of dentistry, tehran university of medical m. rismanchian associate professor, department of prosthodontics, school of dentistry, isfahan university of medica

objective: the aim of this study was to evaluate and compare the status of supporting tissue around implant-supported fixed partial denture with or without cantilever clinically and radiographically during a four-year period. materials and methods: one hundred and fifty nine patients who were treated by 482 implants supported fixed partial prosthesis with and without cantilever after at least f...

Journal: :journal of dentistry, tehran university of medical sciences 0
sara koosha assisstant professor, department of prosthodontics, islamic azad university of medical science, branch of dentistry, tehran, iran. fatemeh sadat mirhashemi

tooth/implant supported fixed prostheses may present biomechanical design problems, as the implant is rigidly anchored within the alveolus, whereas the tooth is attached by the periodontal ligament to the bone allowing movement. many clinicians prefer tooth/implant supported fixed prosthesis designs with rigid connectors. however, there are some doubts about the effect of attachment placement i...

Journal: :journal of dentistry, tehran university of medical sciences 0
rahab ghoveizi assistant professor, department of prosthodontics, shahid beheshti university of medical sciences, school of dentistry, tehran, iran. marzieh alikhasi mohammad-reza siadat hakimeh siadat majid sorouri

crestal bone loss is a biological complication in implant dentistry. the aim of this study was to compare the effect of progressive and conventional loading on crestal bone height and bone density around single osseointegrated implants in the posterior maxilla by a longitudinal radiographic assessment technique.twenty micro thread implants were placed in 10 patients (two implants per patient). ...

Journal: :journal of dental research, dental clinics, dental prospects 0
hadi mokhtarpour dds, ms assistant professor, department of prosthodontics, faculty of dentistry, sari university of medical sciences, sari, iran reza eftekhar ashtiani dds, ms assistant professor, department of dental technology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran minoo mahshid dds, ms professor, department of prosthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran farhad tabatabaian dds, ms assistant professor, department of prosthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran marzieh alikhasi dds, ms associate professor, department of prosthodontics, school of dentistry, tehran university of medical sciences, tehran, iran

background: fracture load of implant-supported restorations is an important factor in clinical success. this study evaluated the effect of two techniques for screw access hole preparation on the fracture load of cement-screw retained implant-supported zirconia-based crowns. methods: thirty similar cement-screw retained implant-supported zirconia-based maxillary central incisor crowns were evalu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1391

this ethnographic case study research was carried out in a private school setting in the context of iran. the research tried to explore the analysis and identity construction of a group of learners and teachers along with the content analysis of books on the basis of four types of commodified, political, national and narrative identities. how english language learners and teachers in an informa...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1392

in this study, the relationship between teachers’ creative and critical thinking skills and their reflectivity in teaching was investigated. to this end, three questions were raised. these questions were intended to determine whether there was a significant relationship between teachers’ creative thinking skills and their reflectivity in teaching; whether there was a significant relationship be...

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