Braiding Thermoplastic and Glass Fibers in Composite Dental Post Improves Their Mechanical Compatibility, In Vitro Experiment
| Autor: | Khaled Mansour Nassar, Juan Melchor, Esraa M. Abdelkader, Guillermo Rus |
|---|---|
| Přispěvatelé: | [Abdelkader,EM, Rus,G] Department of Structural Mechanics, University of Granada, Granada, Spain. [Abdelkader,EM, Nassar,K] Department of Textile, Faculty of Applied Arts, Helwan University, Cairo, Egypt. [Abdelkader,EM, Nassar,K] Department of Textile, Faculty of Applied Arts, Badr University in Cairo, Cairo, Egypt. [Melchor,J, Rus,G] Biomechanics Group (TEC-12), Instituto de Investigación Biosanitaria, ibs.GRANADA, Granada, Spain. [Melchor,J, Rus,G] Excellence Research Unit 'ModelingNature' MNat, University of Granada, Granada, Spain. [Melchor,J] Department of Statistics and Operations Research, University of Granada, Granada, Spain., This research was funded by the Ministry of Science and Innovation, Spain grant numbers DPI2017-83859-R, PID2019-106947RA-C22, and (FEDER) EQC2018-004508-P, the Ministry of Health, Spain, grant number PI16/00339, and Junta de Andalucía IE2017-5537 and PI-0107-201. Erasmus+ funded all of the researcher visits to Granada University through a Ph.D. scholarship. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Glass fiber Composite number Materiales dentales Modulus Young's modulus 02 engineering and technology Polipropilenos Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings] chemistry.chemical_compound 0302 clinical medicine Shear modulus Chemicals and Drugs::Inorganic Chemicals::Elements::Metals Light::Aluminum [Medical Subject Headings] dental materials General Materials Science Fiber Young’s modulus Composite material Anatomy::Stomatognathic System::Mouth::Dentition::Tooth Components::Dentin [Medical Subject Headings] Módulo de elasticidad chemistry.chemical_classification Microscopy QC120-168.85 young’s modulus Engineering (General). Civil engineering (General) 021001 nanoscience & nanotechnology endodontic Disciplines and Occupations::Natural Science Disciplines::Physics::Acoustics::Ultrasonics [Medical Subject Headings] symbols fiber volume fraction (FVF) fiber-reinforced composites (FRCs) Electrical engineering. Electronics. Nuclear engineering TA1-2040 Polypropylene 0210 nano-technology root canal posts Thermoplastic Materials science Dental materials Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Acyclic::Alkenes::Polyenes::Polypropylenes [Medical Subject Headings] Fiber-reinforced composites (FRCs) Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Cluster Analysis [Medical Subject Headings] Article Endodontics Root canal posts 03 medical and health sciences symbols.namesake shear modulus QH201-278.5 Fiberglass Fiber volume fraction (FVF) 030206 dentistry TK1-9971 Descriptive and experimental mechanics chemistry Diente no vital Cavidad pulpar Phenomena and Processes::Physical Phenomena::Thermodynamics::Temperature [Medical Subject Headings] |
| Zdroj: | Materials Materials, Vol 14, Iss 2294, p 2294 (2021) Digibug: Repositorio Institucional de la Universidad de Granada Universidad de Granada (UGR) Digibug. Repositorio Institucional de la Universidad de Granada instname Volume 14 Issue 9 |
| Popis: | Mechanical compatibility with the human dentin is a considerable issue when fabricating dental fiber posts. To this purpose, this study introduces a new method of fabricating compatible dental posts using braiding techniques of thermoplastic fibers (matrix) with glass fibers (reinforcement). Fifty fiber-reinforced composite (FRC) posts of thermoplastic yarns polypropylene (PP) braided with continuous filaments glass fibers (GFs) for reinforcement, varying in fiber volume fraction (FVF), and core types are fabricated and tested. Posts are performed using a braiding machine, and braids are placed in an aluminum mold. The filled mold is playced inside an oven at the melting temperature of the polypropylene to produce the final post’s shape. An ultrasonic test is conducted to measure the shear modulus and Young’s modulus of FRC post specimens by measuring the velocities of both the P-wave and S-wave. In order to ensure the accuracy of the measurements, each sample is measured three times, and then the means and standard deviations of each sample are calculated before analyzing the test results using the means of two steps, namely, clustering and comparing the P and R² values of each cluster, which revealed that FVF, fiber mass, and core type of the specimen had a significant effect on the resulted Young’s and shear modulus. The results indicate that the proposed method can fabricate competitive dental posts with regard to different fabricating variables. The samples show Young’s modulus ranges of from 10.08 GPa to 31.83 GPa. The following tested hypothesis is supported: the braiding technique of thermoplastic fibers with glass fibers will improve the mechanical compatibility of the resulting posts (ex vivo). Ministry of Science and Innovation, Spain grant numbers DPI2017-83859-R, PID2019-106947RA-C22 (FEDER) EQC2018-004508-P Ministry of Health, Spain, grant number PI16/00339 Junta de Andalucía IE2017-5537 and PI-0107-201 Erasmus+ |
| Databáze: | OpenAIRE |
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