Dental Composite Additive
report_problem Problem Statement
Dental composite resins are based on BPA-derived monomers (Bis-GMA, Bis-EMA) and crosslinkers (TEGDMA) that release BPA and other estrogenic leachates into saliva. BPA exposure from dental composites has raised patient safety concerns, with measurable urinary BPA increases observed after dental restoration placement. A bio-based composite matrix using naturally-derived compounds could eliminate BPA-derived monomers while maintaining the mechanical and aesthetic properties required for direct dental restorations.
trending_up Market Size
$2.9B
gavel Regulatory Drivers
FDA Class II medical device (21 CFR 872.3275); EU MDR 2017/745 dental device requirements; ISO 4049 (polymer-based restorative materials); ADA Standard No. 27 (resin-based filling materials); EU SCENIHR opinion on BPA in medical devices (2015); France ban on BPA in food contact (extended scrutiny to dental materials); Japan MHLW dental material notification requirements
corporate_fare Enterprise Interest
No enterprise interest recorded yet. Companies can indicate their volume and urgency to help guide research priorities.
flag Success Criteria
Achieve flexural strength ≥80 MPa and flexural modulus ≥5 GPa per ISO 4049, depth of cure ≥2 mm, water sorption ≤40 μg/mm³, and BPA content below detection limit (<1 ppb) in artificial saliva extracts at 7 days
precision_manufacturing Equipment Needed
Dental LED curing light (450-470 nm), universal testing machine with 3-point bend fixture, compression platens, HPLC-MS (or outsource for leachate analysis), PTFE molds per ISO 4049, analytical balance for sorption/solubility, artificial saliva, silanized barium glass filler, bio-based monomers, commercial Bis-GMA composite for control, spectrophotometer for shade matching
menu_book Existing References
Reference list will be published with protocols.
Protected Research Content
This section contains detailed protocols, proposed mechanisms, experiment designs, and safety information.
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