Monomer Elution from Three Resin Composites at Two Different Time Interval Using High Performance Liquid...

Area of Science:

• Dental Materials Science
• Polymer Chemistry
• Analytical Chemistry

Background:

• Photo-activated resin composites are widely used in dentistry for restorations.
• Inadequate polymerization may lead to monomer elution, raising potential health concerns.
• Understanding monomer release is crucial for assessing the safety and longevity of dental materials.

Purpose of the Study:

• To quantify the elution of monomers from three different resin composite materials.
• To identify specific monomers released and their quantities over time.
• To evaluate potential differences in monomer elution between various composite formulations.

Main Methods:

• Three resin composite materials (Swiss Tech, Ceram X, Beautifil Injectable) were tested.
• Cylindrical samples were immersed in 75% ethanol and stored at room temperature.
• High-performance liquid chromatography (HPLC) was used to quantify Bisphenol A-glycidyl methacrylate (Bis-GMA), Triethylene glycol dimethacrylate (TEGDMA), 2-hydroxyethyl methacrylate (HEMA), and Urethane dimethacrylate (UDMA) at 24 hours and 7 days.

Main Results:

• At 24 hours, Bis-GMA eluted most from the injectable composite, while TEGDMA eluted from Swiss Tech and Ceram X.
• By the 7th day, Bis-GMA showed the highest elution across all three resin composites.
• Significant monomer release was detected from all tested resin composite materials.

Conclusions:

• Monomer elution is evident from the tested resin composites.
• The type and quantity of eluted monomers vary between materials and over time.
• Regular assessment of monomer release is important in routine dental clinical practice.