GRAPHENE-OXIDE-BASED ADHESIVE CEMENT COMPOSITION FOR ORTHODONTIC BONDING

摘要

The invention relates to a dual composite cement composition to be used in dentistry, containing a base paste and a catalyst paste. According to the invention, the composition of pastes comprises 23...35% parts of organic matrix and 75...65% parts of hybrid inorganic filler which consists, in its turn, of 0.1...0.6% parts of graphene oxide with silicon dioxide, 10...25% parts of hydroxyapatite with silicon dioxide, 40...60% parts of bioactive glass and 35...40% parts of quartz, the parts being expressed by weight, the base paste additionally containing 0.5...1% camphorquinone and 0.5...1% dimethylaminoethyl methacrylate, while the catalyst paste additionally contains 1...2% benzoyl peroxide, the cement having higher mechanical properties and increased adhesion to the dental substrate and the orthodontic support.