Severely Atrophic Mandibles restored with Fiber-Reinforced Composite Prostheses Supported by 5.0mm Ultra-short Implants present high survival rates up to Eight Years

ABSTRACT Introduction The early loss of deciduous molars is a frequently encountered problem in dentistry. Various space maintainer designs were developed to prevent the loss of the space. The aim of this study was to evaluate long-term clinical performance and survival rates of fiber-reinforced composite resin (FRCR) as a space maintainer clinically. Materials and methods This study was designed on 44 children who had early missed deciduous molars. Space maintainers were prepared on plaster models of patients and fixed directly to the adjacent teeth. Survival rate and whether it causes any damage to adjacent teeth were examined clinically and radiographically for 24 months or until failure. Kaplan–Meier survival analysis was used for the statistical analyses. Results Overall, 16.2% of space maintainers were dislodged and accepted to be failed at the end of 12 months. At the 24-month control, 52.2% success was stated with the FRCR space maintainer and because of permanent tooth eruption, 31.8% of space maintainer were taken out. The mean duration of space maintainers was measured to be 14.8±3.48 months. There was no statistical significance between survival time and gender, tooth number, localization, and measured space (p > 0.05). Conclusion After all 24 months follow-up, as well as esthetic properties of FRCR space maintainer, their applicability in a single seance and strength against the forces are determined as the advantages of the technique. Clinical significance The FRCR space maintainers can be thought of as alternatives to metal space maintainers. How to cite this article Kirzioğlu Z, Çiftçi ZZ, Yetiş CÇ. Clinical Success of Fiber-reinforced Composite Resin as a Space Maintainer. J Contemp Dent Pract 2017;18(3):188-193.

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A New Technique for Direct Fabrication of Fiber-Reinforced Composite Bridge: A Long-Term Clinical Observation

Dentistry Journal ◽

10.3390/dj8020048 ◽

2020 ◽

Vol 8 (2) ◽

pp. 48

Author(s):

Matías Ferrán Escobedo Martínez ◽

Samuel Rodríguez López ◽

Jairo Valdés Fontela ◽

Sonsoles Olay García ◽

Mario Mauvezín Quevedo

Keyword(s):

Periodontal Disease ◽

Survival Rates ◽

Good Alternative ◽

New Technique ◽

Fiber Reinforced ◽

Fiber Reinforced Composite ◽

Reinforced Composite ◽

Direct Technique ◽

Composite Bridge

The use of fiberglass in dentistry has increased due to the improvements in the development of adhesive techniques reducing the cost of treatment and avoiding abutment tooth craving. The present study aims to evaluate the clinical usefulness of the new technique to fabricate a direct fiber-reinforced composite bridge (FRCB) over a long period of time. Twenty-one FRCB were performed with the new direct technique on 21 patients with a mean age of 58.85 years and female predominance in the Faculty of Dentistry of Oviedo (Spain). The framework design releases the embrasures allowing adequate interproximal brushing, avoidance of periodontal disease and interproximal caries. A baseline examination was performed and the patients were examined regularly at six-month intervals (nine years’ follow-up). The restorations were also evaluated by an examiner using parameters to check their stability, longevity and the lack of periodontal disease. The most frequent location was the maxillary premolar region and the purpose of the restorations was to give a definitive bridge in 100% of the patients. Only one total debonding of the prostheses was detected during the observation period at 24 months and three partial adhesive–cohesive veneering composite fractures at the pontic after 60, 72 and 84 months, respectively. Kaplan–Meier was performed to detect the overall survival rate of the restorations at the end of the follow-up. Nine-year survival rates for the FRCB was 95.2%. All the cases had a clinically acceptable periodontal condition and an interproximal absence of caries in the abutment teeth. Currently, this type of restoration allows a minimally invasive aesthetic and is an affordable procedure, being a good alternative to other types of treatments.

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Recent Developments in Boron Fiber-Reinforced Composite Materials

10.33599/nasampe/s.19.1438 ◽

2019 ◽

Author(s):

James Marzik ◽

Thomas Foltz ◽

Chantel Camardese

Keyword(s):

Composite Materials ◽

Fiber Reinforced ◽

Fiber Reinforced Composite ◽

Boron Fiber ◽

Reinforced Composite ◽

Recent Developments

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Mathematical Model of the Effective Properties of a Fiber Reinforced Composite with a Linearly Graded Transition Zone

Tire Science and Technology ◽

10.2346/1.3519536 ◽

2010 ◽

Vol 38 (4) ◽

pp. 286-307

Author(s):

Carey F. Childers

Keyword(s):

Mathematical Model ◽

Transition Zone ◽

Effective Properties ◽

Local Stress ◽

Stress And Strain ◽

Fiber Reinforced ◽

Strain Fields ◽

Shear Moduli ◽

Fiber Reinforced Composite ◽

Reinforced Composite

Abstract Tires are fabricated using single ply fiber reinforced composite materials, which consist of a set of aligned stiff fibers of steel material embedded in a softer matrix of rubber material. The main goal is to develop a mathematical model to determine the local stress and strain fields for this isotropic fiber and matrix separated by a linearly graded transition zone. This model will then yield expressions for the internal stress and strain fields surrounding a single fiber. The fields will be obtained when radial, axial, and shear loads are applied. The composite is then homogenized to determine its effective mechanical properties—elastic moduli, Poisson ratios, and shear moduli. The model allows for analysis of how composites interact in order to design composites which gain full advantage of their properties.

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