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Adhesion to high-performance polymers applied in dentistry: A systematic review
Lorena Tavares Gama1, Thais Mageste Duque2, Mutlu Özcan3
1Department Prosthodontics and Periodontology, University of Campinas (UNICAMP), Limeira Avenue, 901, CEP: 13414-903, Areião, Piracicaba, Brazil.
Summary
Surface pretreatments significantly enhance the bonding strength of high-performance polymers (HPPs). Methods like air abrasion and specific bonding agents improve both shear and tensile bond strength in materials such as PEEK and PEKK.
Area of Science:
- Materials Science
- Polymer Science
- Biomaterials Engineering
Background:
- High-performance polymers (HPPs) are increasingly utilized in demanding applications.
- Ensuring robust bonding of HPPs is critical for the longevity and performance of devices.
- Limited data exists on the comparative efficacy of various surface pretreatment methods for HPPs.
Purpose of the Study:
- To systematically review and analyze the impact of surface pretreatments on the bonding strength of HPPs.
- To quantify the improvements in shear bond strength (SBS) and tensile bond strength (TBS) following different pretreatments.
- To compare the effectiveness of various bonding agents in conjunction with surface treatments.
Main Methods:
- Systematic review conducted according to the PRISMA statement.
- Searched eight databases up to March 2019.
- Random effects meta-analyses used to assess mean differences in SBS and TBS.
Main Results:
- Pretreatments significantly increased TBS and SBS for polyetheretherketone (PEEK).
- Visio.link® increased TBS by 26.72MPa and SBS by 4.86MPa.
- Air abrasion (50μm alumina) improved SBS by 4.90MPa; silica-coated CoJet improved SBS by 4.51MPa.
- Visio.link® and Signum PEEK Bond® significantly increased SBS by approximately 33MPa compared to controls.
- Similar positive effects were observed for polyetherketoneketone (PEKK).
Conclusions:
- Surface pretreatments, including air abrasion and specific bonding agents, demonstrably improve HPP bonding.
- Visio.link®, Signum PEEK Bond®, and air abrasion are effective methods for enhancing HPP bond strength.
- Further research may explore long-term stability and clinical applications of these bonding strategies.
