نتایج جستجو برای: fiber posts

تعداد نتایج: 137669  

ژورنال: مجله دندانپزشکی 2016
جلالیان, عزت‌الله, رحیمی, نیلوفر, زربخش, آرش, صدرحقیقی, شهرزاد,

Background and Aims: The zirconia coated FRC posts (Ice light) is the next generation of aesthetic posts , ice light features 70% fill of zirconia enriched, parallel glass fiber for exceptional strength. Its flexibility is close to dentine so stress is distributed. The aim of this study was to evaluate the effect of post type (FRC post and the zirconia coated FRC post) on the retention to t...

2009
Jürgen Manhart

The prosthetic treatment of seriously damaged, endodonticallytreated teeth often require an endodontic post as an additional retention element for core build-up prior to crown restoration. In addition to metal-based posts and zirconia-based ceramic posts, fiber-reinforced composite posts have recently become a center of interest for dentists and science. In the past it was commonly accepted tha...

Journal: :Acta biomaterialia 2009
Nicolas Cheleux Patrick J Sharrock

Five types of posts from three different manufacturers (RTD, France, Carbotech, France and Ivoclar-Vivadent, Liechenstein) were subjected to three-point bending tests in order to obtain fatigue results, flexural strength and modulus. Transverse and longitudinal polished sections were examined by scanning electron microscopy and evaluated by computer-assisted image analysis. Physical parameters,...

2012
Mainak Kanti Saha

Coronal fractures of permanent dentition are the most frequent type of dental injury. If the original tooth fragment is retained following fracture, the natural tooth structures can be reattached using adhesive protocols. The development and use of fiber-reinforced composite root canal posts make possible the reattachment of the crown esthetically. This case report presents a clinical technique...

Journal: :journal of dentistry, tehran university of medical sciences 0
n. mohammadi assistant professor, department of operative dentistry, school of dentistry, tabriz university of me m. abed kahnamoui assistant professor, department of operative dentistry, school of dentistry, tabriz university of me me. ebrahimi chaharom assistant professor, department of operative dentistry, school of dentistry, tabriz university of me s. kimyai assistant professor, department of operative dentistry, school of dentistry, tabriz university of me m. bahari associate professor, department of operative dentistry, school of dentistry, tabriz university of me

objective: the aim of the present study was to compare microtensile bond strengths (μtbs) of glass fiber posts to different parts of intra-radicular dentin using conventional method and one-shot technique under different light intensities. materials and methods: twenty-eight single-rooted teeth were prepared to receive fiber posts: group 1: conventional method at light intensity of 600 mw/cm2; ...

Journal: :journal of dentistry, tehran university of medical sciences 0
a. hassan ahangari assistant professor, department of prosthodontics, school of dentistry, shiraz university of medical a. geramy associate professor, department of orthodontics, school of dentistry, tehran university of medical s a. valian assistant professor, department of operative dentistry, school of dentistry, shahid beheshti univers

objective: the main goal of this study was to evaluate stress distribution of endodonti-cally treated maxillary central incisors restored with glass fiber posts, composite resin cores, and crowns with different ferrule designs. materials and methods: four three-dimensional models of a maxillary central incisor were modeled in solidworks 2006. tooth with no ferrule, tooth with a 2 mm circumferen...

2013
Bağdagül Helvacıoğlu Kıvanç Hacer Deniz Arısu Mine Betül Üçtaşlı Tufan Can Okay

PURPOSE Over the past years, the adhesion of fiber posts luted with simplified adhesive systems has been a matter of great interest. The aim of this study was to assess the post retentive potential of a self-adhesive resin cement using different adhesive systems to compare the push-out bond strengths of fiber posts. MATERIALS AND METHODS The post spaces of 56 mandibular premolar roots were pr...

Journal: :Acta odontologica latinoamericana : AOL 2010
Eduardo J Souza-Junior Vanessa C P S Bueno Carlos T S Dias Luís A M S Paulillo

The aim of this study was to evaluate the influence of eugenol-containing endodontic sealers and luting strategy on the pull-out bond strength of glass fiber posts to dentin. Sixty-four bovine incisors were randomly assigned into two groups of 32 specimens each for obturation procedure with gutta-percha only, or with Pulp Canal Sealer EWT Subsequently, the roots were prepared for the fiber post...

2012
Khamverdi Zahra Talebian Reza

PURPOSE The aim of the present study was to assess the effect of ascorbic acid, ethanol and acetone on microtensile bond strength between fiber posts pre-treated with hydrogen peroxide and composite resin cores. MATERIALS AND METHODS Twenty four fiber posts were pre-treated with 24% hydrogen peroxide and divided into 4 groups as follows: G1: no treatment, as control group; G2: treatment with ...

2016
Fahad I. Alkhudhairy Mohammed S. Bin-Shuwaish

OBJECTIVE This study investigated the effect of different endodontic irrigant solutions and resin cement systems on the bond strength of cemented fiber posts. METHODS Sixty human single-rooted anterior teeth were sectioned transversely at 2 mm incisal to the cemento-enamel junction (CEJ). The roots were treated endodontically, and teeth were distributed into six groups: group A, includes 5.25...

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