CharacteristicsHeterologous bone grafting material made of a mix of collagenated cortico-cancellous granules of size ranging from 600 to1000 µm, properly blended with TSV Gel, which is a mixture of heterologous type I and III collagen gel with polyunsaturated fatty acids and a biocompatible synthetic copolymer diluted in aqueous solution. GTO® is gradually resorbed and it is extremely osteoconductive.