Manufacturing of dental composite based on bisglycidyl methacrylate an‎d ethene glycol dimethacrylate using plasma an‎d light emitting diode methods

5/11/2026 12:00:00 AM

In this research, with the aim of developing an advanced an‎d biocompatible dental restorative material, a resin composite based on Bisphenol A-glycidyl methacrylate (Bis-GMA) an‎d ethylene glycol dimethacrylate monomer (EGDMA) as The diluent agent was designed an‎d synthesized. The use of this resin composition, while providing appropriate adhesion an‎d viscosity, provides a suitable substrate for the dispersion of the filler phase. In order to enhance the physical, biological an‎d Which has a light structure In this study, two types of filler were selec‎ted: pyrolyzed silica with the trade name Aerosil, which has a structure It has a high active surface area, an‎d fluorohydroxyapatite, which has a structure similar to the mineral tissue of teeth an‎d enhances biological an‎d antibacterial performance. The composite paste obtained from these components was polymerized by two different methods: (1) light polymerization using a light-emitting diode (LED), which is a common method in dental clinics, an‎d (2) a novel method of plasma polymerization under dielectric barrier discharge conditions (DBD Plasma), which leads to surface activation an‎d more efficient polymerization without generating additional heat. To fully eva‎luate the structure an‎d performance of the composites, numerous tests an‎d analyses were conducted, including: • FT-IR analysis to examine chemical bonds an‎d completion of the polymerization reaction; • XRD analysis to determine the crystalline phases of the fillers an‎d the uniformity of the dispersion in the matrix; • FE-SEM an‎d AFM to examine the surface morphology, uniformity an‎d roughness; • EDX to identify the elemental composition an‎d distribution of elements; • Mechanical (compressive) tests to measure the compressive strength of the composite; • Antibacterial test to eva‎luate the inhibitory effect of the growth of pathogenic bacteria in the oral environment. Experimental results showed that the combination of Aerosil an‎d fluorohydroxyapatite significantly improved the mechanical properties, strength, durability, an‎d biocompatibility of the composite. Also, the plasma method provided advantages over light polymerization such as stronger surface bonds, increased polymer network density, reduced surface roughness, an‎d more uniform distribution of the filler phase.

كامپوزيت دنداني , پلاسما , ديود ساطع كننده نور

Dental Composite , FHA , DBD plasma

Fateme Samiei

Mohammad Ghorban Dekamin