• Polymeric biomaterials are used in dental composites as restorative materials or adhesives for cavity filling , gap filling reshaping of teeth etc.
• Conventional dental composites has disadvantages due to polymerization shrinkage, seepage of fluids and microorganism to pulp tissue ,diluents contributing to greater elution and cytotoxicity, post operative sensitivity, endocrine disruption etc.

The invention discloses a dental composite comprising:

A matrix comprising a hybrid of two macromers with

1. Any of the many methacrylate terminal groups
2. Any of the many ring-opening polymerizable group

• Co-polymerization of the hybrid with any of the many biologically and chemically compatible            cross-linkers and plurality of adhesive monomers
• Photoinitiator compounds
• Hydrogen donor
• Unsilanized filler
• Additives

Matrix further comprises:

• The Macromer resin “a” has a first functional moiety “b” and Macromer resin “c” has a second functional moiety “d”
• The polymerizable monomers are represented as “e”, “f” and “g” as shown in the Fig. 1

Preparation of the Organic resin matrix

• The constituents are mixed in a cyclic mixer to obtain a homogeneous product
• To the above product 1% to 2% diketone, photoacid and a hydrogen donor are added and mixed in a cyclic mixer and stored in a brown/black container
• Adding 1% to 2% of acidic monomer (dipentaerythritol pentaacrylate phosphoric acid ester (PENTA)), acid like butane tetracarboxylic acid, and hydrophilic monomer like hydroxyethyl methacrylate (HEMA) in a tertiary butanol vehicle
• Obtaning the organic resin matrix

Composition of Dental composite

• The dental composition includes the organic resin matrix combined with unsilanized filler
• It can be 20-35% of organic resin matrix and 65-80% of unsilanized filler;  or at a range of 30% of the prepared organic resin matrix and 70% unsilanized Quartz filler