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Novel self-healing dental resin with microcapsules of polymerizable triethylene glycol dimethacrylate and N,N-dihydroxyethyl-p-toluidine
| Content Provider | Scilit |
|---|---|
| Author | Wu, Junling Weir, Michael D. Zhang, Qiang Zhou, Chuanjian Melo, Mary Anne S. Xu, Hockin H. K. |
| Copyright Year | 2016 |
| Description | Journal: Dental Materials Bulk fracture is one of the primary reasons for resin-based dental restoration failures. To date, there has been no report on the use of polymerizable dental monomers with acceptable biocompatibility to develop a resin with substantial self-healing capability. The objectives of this study were to: (1) develop a self-healing resin containing microcapsules with triethylene glycol dimethacrylate (TEGDMA)-N,N-dihydroxyethyl-p-toluidine (DHEPT) healing liquid in poly(urea-formaldehyde) (PUF) shells for the first time, and (2) determine the physical and mechanical properties, self-healing efficiency, and fibroblast cytotoxicity. Microcapsules of polymerizable TEGDMA-DHEPT in PUF were prepared via an in situ polymerization method. Microcapsules were added into a BisGMA-TEGDMA resin at microcapsule mass fractions of 0%, 5%, 10%, 15% and 20%. A flexural test was used to measure composite strength and elastic modulus. A single edge V-notched beam method was used to measure fracture toughness KIC and self-healing efficiency. Flexural strength and elastic modulus (mean±sd; n=6) of resin containing 5-15% microcapsules were similar to control without microcapsules (p>0.1). Adding microcapsules into the resin increased the virgin KIC, which was about 40% higher at 15% microcapsules than that with 0% microcapsules (p0.1). Self-healing dental resin containing microcapsules with polymerizable TEGDMA-DHEPT healing liquid in PUF shells were prepared for the first time with excellent self-healing capability. These microcapsules and self-healing resins containing them may be promising for dental restorations to heal cracks/damage and increase durability. |
| Related Links | http://europepmc.org/articles/pmc5116152?pdf=render https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5116152/pdf |
| Ending Page | 304 |
| Page Count | 11 |
| Starting Page | 294 |
| ISSN | 01095641 |
| e-ISSN | 18790097 |
| DOI | 10.1016/j.dental.2015.11.014 |
| Journal | Dental Materials |
| Issue Number | 2 |
| Volume Number | 32 |
| Language | English |
| Publisher | Elsevier BV |
| Publisher Date | 2016-02-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Dental Materials Fracture Toughness Recovery Mechanical Properties Polymerizable Healing Liquid Self-healing Dental Resin |
| Content Type | Text |
| Resource Type | Article |
| Subject | Dentistry Mechanics of Materials Materials Science |
