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Development of new injectable adhesive composites for bone repair
Polymethylmethacrylate (PMMA) cements are extensively used in bone repair. Major problems, can include 1) monomer toxicity 2) high heat generation and shrinkage during polymerisation 3) slow chemical activated set 4) generation of wear particles, 5) poor adhesion to bone 6) inadequate mechanical properties. In high strength methacrylate based dental composites the first two problems are substantially reduced through the use of larger dimethacrylates and high levels of filler particles. Setting is also better controlled through the use of light cure in addition to chemical cure initiators. Use of dimethacrylates also enables the materials to crosslink which can reduce wear. In order to improve adhesion, surfactant like acid modified methacrylates have additionally been added to dental adhesives to promote bonding between hydroxyapatite (the main inorganic component of both tooth and bone) and dimethacrylate composites. The aim of this study is therefore to develop new light and chemical cure adhesive composites for bone repair using both dimethacrylates and acid modified methacrylates used in dental materials.
4 Researchers
1 External Collaborators
  • Juha-Pekka Nuutinen
    Ozics - Finland
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Status: Active
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