Perspectives for titanium-derived fillers usage on denture base composite construction: A review article

Nidal W. Elshereksi, Mariyam Jameelah Ghazali, Andanastuti Muchtar, Che Husna Azhari

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Poly(methyl methacrylate) (PMMA) is an extensively used material in dentistry because of its aesthetics, processability, and reparability. However, PMMA is still far from being ideal in fulfilling the mechanical requirements of prosthesis. PMMA-based denture base polymers exhibit low fracture resistance and radiopacity behavior. Efforts to improve the mechanical and radiopacity properties of denture base materials through inclusion of silica-based fillers are ongoing. Although silane-treated siliceous fillers are commonly used, they are not sufficiently strong. They also exhibit cracks, which either cut through the glass fillers or propagate around the filler particles. This defect occurs when the dental composites are placed in aqueous oral environment because of the hydrolytic degradation of silica-based fillers and silane-coupling agents. The clinical problem of using silanes in adhesion promotion is bond degradation over time in oral environment. In addition, silanes do not bond effectively to nonsilica-based dental restorative materials. This review presents titanium-derived fillers as alternatives to siliceous fillers. Titanate-coupling agents are found to be effective couplers in treating Ti-based fillers because of their chemical compatibility and relatively high stability in aqueous environment.

Original languageEnglish
Article number746252
JournalAdvances in Materials Science and Engineering
Volume2014
DOIs
Publication statusPublished - 2014

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Dental prostheses
Titanium
Fillers
Silanes
Composite materials
Polymethyl Methacrylate
Polymethyl methacrylates
Coupling agents
Silicon Dioxide
Silica
Dental composites
Dental materials
Dentistry
Degradation
Fracture toughness
Polymers
Adhesion
Cracks
Glass
Defects

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

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title = "Perspectives for titanium-derived fillers usage on denture base composite construction: A review article",
abstract = "Poly(methyl methacrylate) (PMMA) is an extensively used material in dentistry because of its aesthetics, processability, and reparability. However, PMMA is still far from being ideal in fulfilling the mechanical requirements of prosthesis. PMMA-based denture base polymers exhibit low fracture resistance and radiopacity behavior. Efforts to improve the mechanical and radiopacity properties of denture base materials through inclusion of silica-based fillers are ongoing. Although silane-treated siliceous fillers are commonly used, they are not sufficiently strong. They also exhibit cracks, which either cut through the glass fillers or propagate around the filler particles. This defect occurs when the dental composites are placed in aqueous oral environment because of the hydrolytic degradation of silica-based fillers and silane-coupling agents. The clinical problem of using silanes in adhesion promotion is bond degradation over time in oral environment. In addition, silanes do not bond effectively to nonsilica-based dental restorative materials. This review presents titanium-derived fillers as alternatives to siliceous fillers. Titanate-coupling agents are found to be effective couplers in treating Ti-based fillers because of their chemical compatibility and relatively high stability in aqueous environment.",
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