Development of new radiopaque glass fiber posts

Furtos, Gabriel; Baldea, Bogdan; Silaghi-Dumitrescu, Laura

doi:10.1016/j.msec.2015.10.091

Cited by 16 publications

(16 citation statements)

References 27 publications

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“…There were no voids, bubbles, or irregularities in the fiber‐matrix interface, as seen in scanning electron microscope images of RelyX fiber posts in an in vitro study; this was considered due to the high durability of the product (Novais, Rodrigues, Simamoto Júnior, Lourenço, & Soares, ). In addition to these positive features, glass fiber posts result in improved radiographic imaging due to a high level of radiopacity (Furtos, Baldea, & Silaghi‐Dumitrescu, ). Therefore, RelyX fiber posts were chosen for this study to facilitate detection of post separation from the dentin on micro‐CT analysis.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the efficacies of two different fiber post‐removal systems: A micro‐computed tomography study

Arukaslan

Aydemir

2018

Microscopy Res & Technique

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The aim of this in vitro study was to compare the efficacies of two different fiber post‐removal systems. Thirty extracted single‐rooted mandibular premolar teeth were used. After RelyX fiber posts were cemented, the teeth were divided into two groups with regard to the post removal techniques: ultrasonic vibration and D.T. Light‐Post removal kit. Residual material, tooth volume changes, working time and micro‐crack formation were assessed using micro‐computed tomography. All data were analyzed using Wilcoxon signed‐rank and Mann–Whitney U tests. There was significantly more tooth root volume change in the ultrasonic group than removal kit group (p < .05). Fiber post removal time for the ultrasonic group was significantly longer than the removal kit group (p < .01).

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Section: Discussionmentioning

confidence: 99%

Comparison of the efficacies of two different fiber post‐removal systems: A micro‐computed tomography study

Arukaslan

Aydemir

2018

Microscopy Res & Technique

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“…Reinforcement using glass fiber is considered a possible remedy for the defects of NMCDs made from thermoplastic resins. Several basic research and clinical studies have been conducted on the fiber reinforcement of prosthodontic appliances such as crowns, fixed partial dentures, complete dentures, and dental dowels (posts) . Dental prostheses made from fiber‐reinforced composites are often much more esthetically pleasing than those made from metal alloys.…”

Section: Introductionmentioning

confidence: 99%

“…Several basic research and clinical studies have been conducted on the fiber reinforcement of prosthodontic appliances such as crowns, fixed partial dentures, complete dentures, and dental dowels (posts). [11][12][13] Dental prostheses made from fiber-reinforced composites are often much more esthetically pleasing than those made from metal alloys. Another advantage of dental prostheses made from fiber-reinforced composites is that their properties can be tuned by changing the fiber properties, for example, the type of fiber, 14 fiber diameter, 15 volume fraction of fiber, 16 and insertion position of fiber.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and physical properties of glass‐fiber‐reinforced thermoplastics for non‐metal‐clasp dentures

2016

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Recently, non-metal-clasp dentures (NMCDs) made from thermoplastic resins such as polyamide, polyester, polycarbonate, and polypropylene have been used as removable partial dentures (RPDs). However, the use of such RPDs can seriously affect various tissues because of their low rigidity. In this study, we fabricated high-rigidity glass-fiber-reinforced thermoplastics (GFRTPs) for use in RPDs, and examined their physical properties such as apparent density, dynamic hardness, and flexural properties. GFRTPs made from E-glass fibers and polypropylene were fabricated using an injection-molding. The effects of the fiber content on the GFRTP properties were examined using glass-fiber contents of 0, 5, 10, 20, 30, 40, and 50 mass%. Commercially available denture base materials and NMCD materials were used as controls. The experimental densities of GFRTPs with various fiber contents agreed with the theoretical densities. Dynamic micro-indentation tests confirmed that the fiber content does not affect the GFRTP surface properties such as dynamic hardness and elastic modulus, because most of the reinforcing glass fibers are embedded in the polypropylene. The flexural strength increased from 55.8 to 217.6 MPa with increasing glass-fiber content from 0 to 50 mass%. The flexural modulus increased from 1.75 to 7.42 GPa with increasing glass-fiber content from 0 to 50 mass%, that is, the flexural strength and modulus of GFRTP with a fiber content of 50 mass% were 3.9 and 4.2 times, respectively, those of unreinforced polypropylene. These results suggest that fiber reinforcement has beneficial effects, and GFRTPs can be used in NMCDs because their physical properties are better than those of controls. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2254-2260, 2017.

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“…In contrast, some cements from this study showed radiopacity below the enamel value, resulting in possible problems with radiographic detection. Additionally, in terms of radiopacity, fiber posts are recommended to present higher radiopacity than dentin and enamel for improved clinical detection, and posts with lower radiopacity than dentin should be avoided …”

Section: Discussionmentioning

confidence: 99%

“…This can be explained by their high atomic number: aluminium 13, zinc 30, strontium 38, yttrium 39, zirconium 40, barium 56, and ytterbium 70. In contrast, some glass fiber posts are not greatly influenced by the amount of filler . Saridag et al showed that the results of radiopacity from different indirect and direct composite materials by digital technique showed significant differences among them, affected by composite composition and thickness .…”

Section: Discussionmentioning

confidence: 99%