scholarly journals Retention force of fiber-reinforced composite resin post on resin composite for core buildup —Effects of fiber orientation, silane treatment and thermal cycling

2021 ◽  
Author(s):  
Tomoko SOMEYA ◽  
Masaaki KASAHARA ◽  
Shinji TAKEMOTO ◽  
Masayuki HATTORI
Keyword(s):  
Thermal Cycling ◽  
Fiber Orientation ◽  
Composite Resin ◽  
Resin Composite ◽  
Silane Treatment ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Retention Force ◽  
Reinforced Composite

scholarly journals Perawatan Satu Kunjungan Restorasi Pasak Fiber Reinforced Composite Pada Gigi Insisivus Atas

2013 ◽  
Vol 20 (1) ◽  
pp. 45
Author(s):  
Ria Ariani ◽  
Wignyo Hadriyanto
Keyword(s):  
Root Canal ◽  
Composite Resin ◽  
Resin Composite ◽  
Dental Restoration ◽  
Resin Cement ◽  
Root Canal Treatment ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Resin Core

Perawatan saluran akar satu kali kunjungan memberikan keuntungan antara lain memperkecil resiko kontaminasi mikroorganisme dan menghemat waktu perawatan. Pasak fiber reinforced composite memiliki ikatan yang baik dengan dentin menggunakan semen resin dan inti dari resin. Penggunaan pasak bisa mengurangi risiko fraktur. Tujuan penulisan laporan kasus ini adalah untuk mengevaluasi hasil restorasi gigi 11 nekrosis pulpa pasca perawatan saluran akar disertai restorasi dengan pasak fiber reinforced composite. Pasien wanita, 22 tahun datang ke Klinik Konservasi RSGM FKG UGM untuk merawat gigi depan atas kanan yang berlubang. Berdasarkan pemeriksaan subjektif, objektif dan radiografis diperoleh diagnosis gigi 11 nekrosis pulpa. pasca perawatan saluran akar gigi Gigi direstorasi dengan resin komposit dan pasak fiber reinforced composite. Kesimpula dari hasil evaluasi klinis saat kontrol tidak ada keluhan rasa sakit dan pasien merasa puas.One Visit Treatment of Fiber Reinforced Compositerestoration in Maxillary Right First Incisivus. One visit root canal treatment is advantageous to minimize the risk of microorganism contamination. It saves time and more tolerable for the patients. Fiber reinforced composite post is fabricated, and it has been known to have a good bond with dentinal wall of root space, resin cement and composite resin core. The use of this post could decrease the risk of fracture. The purpose of this paper is to report the results of dental restoration 11 pulp necrosis after root canal treatment with resin composite restorations and post fiber reinforced composite. A 22 year-old female patient who came to Faculty of Dentistry UGM complained about her maxillary right incisor teeth which decayed and needed a treatment. Based on the subjective, objective and radiograph examinations, it was diagnosed that the pulp was necrotic. After one visit root canal treatment and based on clinical evaluation, it is concluded that the right upper incisor that was restored using fiber reinforced composite post and composite resin showed no pain, and patient was satisfied.

scholarly journals In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth

2010 ◽  
Vol 2010 ◽  
pp. 1-9
Author(s):  
Tissiana Bortolotto ◽  
Carlo Monaco ◽  
Ioana Onisor ◽  
Ivo Krejci
Keyword(s):  
Fracture Strength ◽  
Composite Resin ◽  
Resin Composite ◽  
Marginal Adaptation ◽  
Fiber Reinforced ◽  
Posterior Teeth ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Custom Made ◽  
Feldspathic Porcelain

The purpose of this paper was to investigate, by means of marginal adaptation and fracture strength, three different types of single retainer posterior fixed partial dentures (FPDs) for the replacement of a missing premolar. Two-unit cantilever FPDs were fabricated from composite resin, feldspathic porcelain, and fiber-reinforced composite resin. After luting procedures and margin polishing, all specimens were subjected to a Scanning Electron Microscopic marginal evaluation both prior to and after thermomechanical loading with a custom made chewing simulator comprising both thermal and mechanical loads. The results indicated that the highest score of marginal adaptation, that is, the closest score to 100% of continuous margins, at thetooth-composite resininterface was attained by the feldspathic porcelain group (88.1% median), followed by the fiber-reinforced composite resin group (78.9% median). The worse results were observed in the composite resin group (58.05% median). Fracture strength was higher in feldspathic porcelain (196N median) when compared to resin composite (114.9 N median). All the fixed prostheses made of fiber-reinforced composite resin detached from the abutment teeth before fracturing, suggesting that the adhesive surface's retainer should be increased.

Endodontic guide for the conservative removal of a fiber-reinforced composite resin post

2021 ◽  
Author(s):  
Lucas Moreira Maia ◽  
Wilson Bambirra Júnior ◽  
Kênia Maria Toubes ◽  
Gil Moreira Júnior ◽  
Vinicius de Carvalho Machado ◽  
...  
Keyword(s):  
Composite Resin ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

Robotic Manufacturing of Near-Net Shaped Short-Fiber Reinforced Composites With Functional Properties

2009 ◽  
Author(s):  
Antony Paul ◽  
Jeffery M. Gallagher ◽  
Raymond J. Cipra ◽  
Thomas Siegmund
Keyword(s):  
Mechanical Properties ◽  
Fiber Orientation ◽  
Fiber Composite ◽  
Imaging Techniques ◽  
Short Fiber ◽  
Robotic Arm ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Geometric Data ◽  
Reinforced Composite

Fiber reinforced composite materials are now frequently being used over conventional materials for their ability to achieve tailored properties and performance characteristics. With the recent advancements in manufacturing techniques, short-fiber composites are coming into prominence in this sector, with their cost advantage and their capability for large throughput. Randomness of fiber orientation is inherent to short fiber composite manufacturing processes. In order to effectively manipulate the mechanical properties of a short-fiber reinforced composite, it is imperative to adequately control the orientation of the fibers during the deposition stage. A process is currently developed to acquire geometrical data of the target object and to utilize it to create a short-fiber reinforced component with controlled fiber orientation. The topological data acquisition of the object is made possible using non-contact 3D imaging techniques. The geometric data is then transferred to a commercial CAD package for the added capability to manipulate the geometry as may be required for specific applications. Subsequently, geometric data constitutes the basis of path planning for the tooling processes. In our process, a novel rapidly re-configurable tooling and molding technology is employed by which a 6-axis robotic arm is used to sculpt a pin-device vacuum surface. After the tooling is completed, the robotic arm will use a deposition nozzle to orient a steady stream of initially random short-fiber from a feeder into a unidirectional output, onto the tool surface. By controlling the position and orientation of the deposition nozzle, it is possible to control the orientation and density of fiber in each section of the near-net shaped composite pre-form. The fiber pre-form is then impregnated with a suitable matrix medium and cured to create the required component. The outlined process is thus capable of manufacturing a near-net shaped short-fiber reinforced component with highly specific mechanical properties. One of the many applications envisaged using this process is the manufacture of custom form-fitting braces, masks and guards for use in healthcare products. A patient intervention can have his or her features acquired using stereo-imaging and have corrective measures incorporated into the device prior to manufacturing. By controlling the orientation and density of the fiber at different portions of the device, it is possible to provide adequate support at specific areas or to restrict movement in specific directions while providing compliance to movement in the others.

scholarly journals Fiber Reinforced Composite Based Functionally Gradient Materials

1998 ◽  
Vol 7 (4) ◽  
pp. 096369359800700 ◽  
Author(s):  
VK Ganesh ◽  
S Ramakrishna ◽  
HJ Leck
Keyword(s):  
Mechanical Properties ◽  
Fiber Orientation ◽  
Orientation Angle ◽  
Gradient Material ◽  
Material System ◽  
Test Results ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Functionally Gradient

A method of fabricating fiber-reinforced composite based functionally gradient material is described in this paper. The material has continuously varying mechanical properties along the length. The continuous variation of the mechanical properties is achieved by continuously varying the fiber orientation using the braiding process. The test results indicate an elastic modulus increase by about 42% from the largest braid angle to the smallest braid angle for the material system and the orientation angle considered in the present study.

Numerical Simulation of the Orthogonal Cutting of Carbon Fiber Reinforced Composite Material

2014 ◽  
Vol 887-888 ◽  
pp. 1246-1250 ◽  
Author(s):  
Zhi Kai Li ◽  
Dong Lu ◽  
Qiang Wang ◽  
Yong Bo Wu
Keyword(s):  
Carbon Fiber ◽  
Fiber Orientation ◽  
Orthogonal Cutting ◽  
Orientation Angle ◽  
Surface Damage ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Fiber Orientation Angle ◽  
Carbon Fiber Reinforced

This work is focused on the study of orthogonal cutting of carbon fiber reinforced composite. A model based on finite element was developed. Through defining ultimate stresses of fiber tension cracking and fiber compression bucking, ultimate stresses of matrix longitudinal tensile and shear damage. Cutting forces obtained from the FE simulation matches well with the experimental observations. Than analysis cracking and crushing phenomenon of matrix in different fiber orientation, the influence of fiber orientation on sub-surface damage was studied, it shows that the cracking of sub-surface damage value increased with the increase of fiber orientation angle.

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