Spot-Bonding and Full-Bonding Techniques for Fiber Reinforced Composite (FRC) and Metallic Retainers
Fiber reinforced Composite (FRC) retainers have been introduced as an aesthetic alternative to conventional metallic splints, but present high rigidity. The purpose of the present investigation was to evaluate bending and fracture loads of FRC splints bonded with conventional full-coverage of the FR...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-10-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/18/10/2096 |
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| author | Andrea Scribante Paola Gandini Paola Tessera Pekka K. Vallittu Lippo Lassila Maria Francesca Sfondrini |
| author_facet | Andrea Scribante Paola Gandini Paola Tessera Pekka K. Vallittu Lippo Lassila Maria Francesca Sfondrini |
| author_sort | Andrea Scribante |
| collection | DOAJ |
| description | Fiber reinforced Composite (FRC) retainers have been introduced as an aesthetic alternative to conventional metallic splints, but present high rigidity. The purpose of the present investigation was to evaluate bending and fracture loads of FRC splints bonded with conventional full-coverage of the FRC with a composite compared with an experimental bonding technique with a partial (spot-) resin composite cover. Stainless steel rectangular flat, stainless steel round, and FRC retainers were tested at 0.2 and 0.3 mm deflections and at a maximum load. Both at 0.2 and 0.3 mm deflections, the lowest load required to bend the retainer was recorded for spot-bonded stainless steel flat and round wires and for spot-bonded FRCs, and no significant differences were identified among them. Higher force levels were reported for full-bonded metallic flat and round splints and the highest loads were recorded for full-bonded FRCs. At the maximum load, no significant differences were reported among spot- and full-bonded metallic splints and spot-bonded FRCs. The highest loads were reported for full bonded FRCs. The significant decrease in the rigidity of spot-bonded FRC splints if compared with full-bonded retainers suggests further tests in order to propose this technique for clinical use, as they allow physiologic tooth movement, thus presumably reducing the risk of ankylosis. |
| first_indexed | 2024-04-12T23:06:05Z |
| format | Article |
| id | doaj.art-bfd5bfc74f8f43589376fc5fef81eaa3 |
| institution | Directory Open Access Journal |
| issn | 1422-0067 |
| language | English |
| last_indexed | 2024-04-12T23:06:05Z |
| publishDate | 2017-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-bfd5bfc74f8f43589376fc5fef81eaa32022-12-22T03:12:55ZengMDPI AGInternational Journal of Molecular Sciences1422-00672017-10-011810209610.3390/ijms18102096ijms18102096Spot-Bonding and Full-Bonding Techniques for Fiber Reinforced Composite (FRC) and Metallic RetainersAndrea Scribante0Paola Gandini1Paola Tessera2Pekka K. Vallittu3Lippo Lassila4Maria Francesca Sfondrini5Unit of Orthodontics and Paediatric Dentistry, Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, 27100 Pavia, ItalyUnit of Orthodontics and Paediatric Dentistry, Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, 27100 Pavia, ItalyUnit of Orthodontics and Paediatric Dentistry, Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, 27100 Pavia, ItalyDepartment of Biomaterial Science and Turku Clinical Biomaterials Centre—TCBC, Institute of Dentistry, University of Turku, 20100 Turku, FinlandDepartment of Biomaterial Science and Turku Clinical Biomaterials Centre—TCBC, Institute of Dentistry, University of Turku, 20100 Turku, FinlandUnit of Orthodontics and Paediatric Dentistry, Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, 27100 Pavia, ItalyFiber reinforced Composite (FRC) retainers have been introduced as an aesthetic alternative to conventional metallic splints, but present high rigidity. The purpose of the present investigation was to evaluate bending and fracture loads of FRC splints bonded with conventional full-coverage of the FRC with a composite compared with an experimental bonding technique with a partial (spot-) resin composite cover. Stainless steel rectangular flat, stainless steel round, and FRC retainers were tested at 0.2 and 0.3 mm deflections and at a maximum load. Both at 0.2 and 0.3 mm deflections, the lowest load required to bend the retainer was recorded for spot-bonded stainless steel flat and round wires and for spot-bonded FRCs, and no significant differences were identified among them. Higher force levels were reported for full-bonded metallic flat and round splints and the highest loads were recorded for full-bonded FRCs. At the maximum load, no significant differences were reported among spot- and full-bonded metallic splints and spot-bonded FRCs. The highest loads were reported for full bonded FRCs. The significant decrease in the rigidity of spot-bonded FRC splints if compared with full-bonded retainers suggests further tests in order to propose this technique for clinical use, as they allow physiologic tooth movement, thus presumably reducing the risk of ankylosis.https://www.mdpi.com/1422-0067/18/10/2096dentistryorthodonticsprosthodonticsfiber reinforced compositeFRCsthree-point bendingbendstrength |
| spellingShingle | Andrea Scribante Paola Gandini Paola Tessera Pekka K. Vallittu Lippo Lassila Maria Francesca Sfondrini Spot-Bonding and Full-Bonding Techniques for Fiber Reinforced Composite (FRC) and Metallic Retainers International Journal of Molecular Sciences dentistry orthodontics prosthodontics fiber reinforced composite FRCs three-point bending bend strength |
| title | Spot-Bonding and Full-Bonding Techniques for Fiber Reinforced Composite (FRC) and Metallic Retainers |
| title_full | Spot-Bonding and Full-Bonding Techniques for Fiber Reinforced Composite (FRC) and Metallic Retainers |
| title_fullStr | Spot-Bonding and Full-Bonding Techniques for Fiber Reinforced Composite (FRC) and Metallic Retainers |
| title_full_unstemmed | Spot-Bonding and Full-Bonding Techniques for Fiber Reinforced Composite (FRC) and Metallic Retainers |
| title_short | Spot-Bonding and Full-Bonding Techniques for Fiber Reinforced Composite (FRC) and Metallic Retainers |
| title_sort | spot bonding and full bonding techniques for fiber reinforced composite frc and metallic retainers |
| topic | dentistry orthodontics prosthodontics fiber reinforced composite FRCs three-point bending bend strength |
| url | https://www.mdpi.com/1422-0067/18/10/2096 |
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