نتایج جستجو برای: endodontically treated premolar

تعداد نتایج: 470586  

2008
Narmin Mohammadi Amir Ahmad Ajami Soodabeh Kimyai Mojdeh Rezaei Aval

INTRODUCTION The aim of the present study was to evaluate the effect of three types of luting cements used for post cementation on the fracture resistance of endodontically treated maxillary premolars, restored with resin composite. MATERIALS AND METHODS One hundred intact single-rooted human maxillary premolars were randomly divided into 5 groups of 20 each. In groups 2-5, post spaces were p...

2013
Ozgur Er Kerem Kilic Emir Esim Tugrul Aslan Halil Ibrahim Kilinc Sahin Yildirim

PURPOSE The aim of the present study was to evaluate the effects of posts with different morphologies on stress distribution in an endodontically treated mandibular premolar by using finite element models (FEMs). MATERIALS AND METHODS A mandibular premolar was modeled using the ANSYS software program. Two models were created to represent circular and oval fiber posts in this tooth model. An o...

2013
Roopak Bose Carlos Mohan Thomas Nainan Shamina Pradhan Roshni Sharma Shiny Benjamin Rajani Rose

Clinical success of endodontically treated posterior teeth is determined by the postendodontic restoration. Several options have been proposed to restore endodontically treated teeth. Endocrowns represent a conservative and esthetic restorative alternative to full coverage crowns. The preparation consists of a circular equigingival butt-joint margin and central retention cavity into the entire ...

Journal: :Jurnal Kedokteran Gigi Universitas Padjadjaran 2021

Pendahuluan: Gigi yang telah dirawat endodontik dapat mengalami perubahan baik secara makro maupun mikrostruktur, sehingga menjadikannya lebih rentan terhadap fraktur. Restorasi gigi perlu mempertimbangkan sisa jaringan tersedia agar restorasi bertahan lama. Tujuan laporan kasus ini untuk memaparkan bahwa modifikasi mahkota metal porselen menjadi alternatif pilihan pada pasca perawatan endodont...

2015
S Sreedevi R Sanjeev Rekha Raghavan Anna Abraham T Rajamani Girish Kumar Govind

BACKGROUND Endodontically treated teeth have significantly different physical and mechanical properties compared to vital teeth and are more prone to fracture. The study aims to compare the fracture resistance of endodontically treated teeth with and without post reinforcement, custom cast post-core and prefabricated post with glass ionomer core and to evaluate the ferrule effect on endodontica...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
a. zarbakhsh dept. of prosthodontics, dental branch, islamic azad university of medical sciences, tehran, iran. e. jalalian dept. of prosthodontics, dental branch, islamic azad university of medical sciences, tehran, iran. a. mazaheri tehrani dept. of prosthodontics, dental branch, islamic azad university of medical sciences, tehran, iran. m. norozy dept. of operative dentistry, school of dentistry, kerman university of medical sciences, kerman, iran p. fatourechi

objective: despite the advantages of esthetic posts, lack of studies on their fracture resistance has limited their clinical use. this study aimed to compare the effect of two types of esthetic posts namely zirconia and zirconia enriched glass fiber composite posts on fracture resistance of endodontically treated teeth against compressive forces.   methods: this in vitro study was conducted on ...

Journal: :Journal of composites science 2022

Coronal discoloration of endodontically treated teeth is a challenge in clinical dentistry. This study aimed to compare coronal induced by White Mineral Trioxide Aggregate and Calcium-enriched mixture cement. Fifty single-rooted, unrestored premolar extracted for orthodontic reasons were selected. After access cavity preparation, all the root canals instrumented with MTWO rotary files up #40.6%...

A. Mazaheri Tehrani, A. Zarbakhsh, E. Jalalian, M. Norozy, P. Fatourechi,

  Objective: Despite the advantages of esthetic posts, lack of studies on their fracture resistance has limited their clinical use. This study aimed to compare the effect of two types of esthetic posts namely zirconia and zirconia enriched glass fiber composite posts on fracture resistance of endodontically treated teeth against compressive forces.   Methods: This in vitro study was conducted o...

2014
Hassan Torabzadeh Amir Ghassemi Masoud Sanei Sara Razmavar Seyedeh Mahsa Sheikh-Al-Eslamian

INTRODUCTION This in vitro study evaluated the influence of composite thickness (with or without fiber reinforcement) on fracture resistance of direct restorations in endodontically treated teeth. METHODS AND MATERIALS Fifty-six intact human premolars were chosen and randomly divided into four groups (n=14). After preparation of a mesio-occluso-distal (MOD) cavities and cusp reduction, the te...

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