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Khan AA, Zafar MS, Fareed MA, AlMufareh NA, Alshehri F, AlSunbul H, Lassila L, Garoushi S, Vallittu PK. Fiber-reinforced composites in dentistry - An insight into adhesion aspects of the material and the restored tooth construct. Dent Mater 2023; 39:141-151. [PMID: 36604257 DOI: 10.1016/j.dental.2022.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 12/05/2022] [Accepted: 12/24/2022] [Indexed: 01/04/2023]
Abstract
OBJECTIVE This review aimed to highlight the insight into adhesion aspects within the components of the glass FRC (i.e., fiber and matrix) and between resin luting material and the glass FRC construction. METHODS The fundamentals of semi-interpenetrating polymer network (semi-IPN) based FRCs and their advantages in forming a solid adhesive interface with indirect FRC restoration, dental adhesive, and luting cement are elaborated. The important resin matrix systems and glass fibers used in FRCs are discussed. This is principally based on a survey of the literature over Medline/PubMed, Web of Science, and Scopus databases and a review of the relevant studies and publications in scientific papers in international peer-reviewed journals for the specific topic of biomaterials science. The keywords used for the search approach were: adhesion, fiber-reinforced composite, glass fiber, and semi-interpenetrating polymer network. RESULTS The polymer matrix systems of semi-IPN-based FRCs and formation of secondary-IPN layer are pivotal for bonding of multiphasic indirect dental constructs and repair. Additionally, describing areas of indication for FRCs in dentistry, explaining the adhesion aspects of FRC for the cohesion of the material itself, and for obtaining durable adhesion when the FRC construct is luted to tooth and remaining dentition. Current progress in the field of FRC research and future directions are summarized and presented. SIGNIFICANCE By understanding the isotropic-anisotropic nature of fibers and the interfacial adhesion within the components of the FRC; between resin cement and the FRC construction, the clinically successful FRC-based multiphasic indirect tooth construct can be achieved. The interfacial adhesion within the components of the FRC and between resin luting material and the FRC construction play a key role in adhesion-based unibody dental restorations.
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Affiliation(s)
- Aftab Ahmed Khan
- Dental Biomaterials Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah, Medina, Saudi Arabia; Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad, Pakistan
| | - Muhammad Amber Fareed
- Department of Restorative Dentistry, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates
| | - Nawaf Abdulrahman AlMufareh
- Department of Pediatric Dentistry and Special Health Care Needs, Ministry of Health, Abha Specialist Dental Center, Abha, Saudi Arabia
| | - Faisal Alshehri
- Department of Restorative Sciences, School of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Hanan AlSunbul
- Department of Restorative Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Lippo Lassila
- Department of Biomaterials Science and Turku Clinical Biomaterials Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland
| | - Sufyan Garoushi
- Department of Biomaterials Science and Turku Clinical Biomaterials Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland
| | - Pekka Kalevi Vallittu
- Department of Biomaterials Science and Turku Clinical Biomaterials Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland; City of Turku Welfare Division, Oral Health Care, Turku, Finland
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Bergamo ETP, Yamaguchi S, Lopes ACO, Coelho PG, de Araújo-Júnior ENS, Benalcázar Jalkh EB, Zahoui A, Bonfante EA. Performance of crowns cemented on a fiber-reinforced composite framework 5-unit implant-supported prostheses: in silico and fatigue analyses. Dent Mater 2021; 37:1783-1793. [PMID: 34588130 DOI: 10.1016/j.dental.2021.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 09/02/2021] [Accepted: 09/13/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To characterize the biomechanical performance of fiber-reinforced composite 5-unit implant-supported fixed dental prostheses (FDPs) receiving individually milled crowns by insilico and fatigue analyses. METHODS Eighteen implant-supported five-unit fiber-reinforced composite frameworks with an individually prepared abutment design were fabricated, and ninety resin-matrix ceramic crowns were milled to fit each abutment. FDPs were subjected to step-stress accelerated-life testing with load delivered at the center of the pontic and at 2nd molar and 1st premolar until failure. The reliability of the prostheses combining all loaded data and of each loaded tooth was estimated for a mission of 50,000 cycles at 300, 600 and 900 N. Weibull parameters were calculated and plotted. Fractographic and finite element analysis were performed. RESULTS Fatigue analysis demonstrated high probability of survival at 300 N, with no significant differences when the set load was increased to 600 and 900 N. 1st and 2nd molar dataset showed high reliability at 300 N, which remained high for the higher load missions; whereas 1st premolar dataset showed a significant decrease when the reliability at 300 N was compared to higher load missions. The characteristic-strength of the combined dataset was 1252 N, with 1st molar dataset presenting higher values relative to 2nd molar and 1st premolar, both significantly different. Failure modes comprised chiefly cohesive fracture within the crown material originated from cracks at the occlusal area, matching the maximum principal strain location. SIGNIFICANCE Five-unit implant-supported FDP with crowns individually cemented in a fiber-reinforced composite framework presented a high survival probability. Crown fracture comprised the main failure mode.
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Affiliation(s)
- Edmara T P Bergamo
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil
| | - Satoshi Yamaguchi
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, 565-0871, Suita, Osaka, Japan
| | - Adolfo C O Lopes
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil
| | - Paulo G Coelho
- Department of Biomaterials, New York University College of Dentistry, New York, NY, USA; Hansjörg Wyss Department of Plastic Surgery, NYU Langone Medical Center, New York, NY, USA; Mechanical and Aerospace Engineering, NYU Tandon School of Engineering, Brooklyn, NY, USA
| | - Everardo N S de Araújo-Júnior
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil
| | - Ernesto B Benalcázar Jalkh
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil; Department of Biomaterials, New York University College of Dentistry, New York, NY, USA.
| | - Abbas Zahoui
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil
| | - Estevam A Bonfante
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil
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Bergamo ETP, Bastos TMC, Lopes ACO, de Araujo Júnior ENS, Coelho PG, Benalcazar Jalkh EB, Zahoui A, Bonfante EA. Physicochemical and mechanical characterization of a fiber-reinforced composite used as frameworks of implant-supported prostheses. Dent Mater 2021; 37:e443-e453. [PMID: 33865619 DOI: 10.1016/j.dental.2021.03.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 12/31/2020] [Accepted: 03/29/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To characterize the physicochemical and mechanical properties of a milled fiber-reinforced composite (FRC) for implant-supported fixed dental prostheses (FDPs). METHODS For FRC characterization, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction, Fourier-transformed infrared spectrometry, simultaneous thermogravimetric analysis and differential scanning calorimetry were performed. For fatigue testing, 3-unit FRC frameworks were fabricated with conventional (9 mm2 connector area) and modified designs (12 mm2 connector area and 2.5 mm-height lingual extension). A hybrid resin composite was veneered onto the frameworks. FDPs were subjected to step-stress accelerated-life fatigue testing until fracture or suspension. Use level probability Weibull curves at 300 N were plotted and the reliability for 100,000 cycles at 300, 600 and 800 N was calculated. Fractographic analysis was performed by stereomicroscope and SEM. RESULTS The FRC consisted of an epoxy resin (∼25%) matrix reinforced with inorganic particles and glass fibers (∼75%). Multi-layer continuous regular-geometry fibers were densely arranged in a parallel and bidirectional fashion in the resin matrix. Fatigue analysis demonstrated high probability of survival (99%) for FDPs at 300 N, irrespective of framework design. Conventional FDPs showed a progressive decrease in the reliability at 600 (84%) and 800 N (19%), whereas modified FDPs reliability significantly reduced only at 800 N (75%). The chief failure modes for FRC FDPs were cohesive fracture of the veneering composite on lower loads and adhesive fracture of the veneering composite at higher loads. SIGNIFICANCE Milled epoxy resin matrix reinforced with glass fibers composite resulted in high probability of survival in the implant-supported prosthesis scenario.
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Affiliation(s)
- Edmara T P Bergamo
- Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, 9-75, Otávio Pinheiro Brisola, 17012-901, Bauru, SP, Brazil.
| | - Tiago M C Bastos
- Department of Physics, Technological Institute of Aeronautics, 50 Marechal Eduardo Gomes, 12228-900, São José dos Campos, SP, Brazil
| | - Adolfo C O Lopes
- Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, 9-75, Otávio Pinheiro Brisola, 17012-901, Bauru, SP, Brazil
| | - Everardo N S de Araujo Júnior
- Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, 9-75, Otávio Pinheiro Brisola, 17012-901, Bauru, SP, Brazil
| | - Paulo G Coelho
- Department of Biomaterials and Biomimetics, Hansjorg Wyss Department of Plastic Surgery, Mechanical and Aerospace Engineering, New York University, 345 24th Street, 10010, New York City, NY, USA
| | - Ernesto B Benalcazar Jalkh
- Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, 9-75, Otávio Pinheiro Brisola, 17012-901, Bauru, SP, Brazil; Department of Biomaterials and Biomimetics, Hansjorg Wyss Department of Plastic Surgery, Mechanical and Aerospace Engineering, New York University, 345 24th Street, 10010, New York City, NY, USA
| | - Abbas Zahoui
- Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, 9-75, Otávio Pinheiro Brisola, 17012-901, Bauru, SP, Brazil
| | - Estevam A Bonfante
- Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, 9-75, Otávio Pinheiro Brisola, 17012-901, Bauru, SP, Brazil
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