Dental composition based on a colloidal silica solution in...

Details Dental composition based on a colloidal silica solution in... Dental composition based on a colloidal silica solution in...

A - Human Necessities

61

K

A61K 6/093 (2006.01)

Patent

CA 2469454

The invention relates to dental compositions which can be used to produce dental prostheses and for dental restoration. The inventive compositions comprise: (1) a concentrated silica solution comprising colloidal amorphous silica particles in at least one continuous silicon phase, consisting of polymerisable and/or crosslinkable silicon polymer and/or oligomer; (2) at least one photosensitiser; and (3) a cationic initiator which is selected from among those comprising a cationic entity selected from onium salts having formula (I): [(R?1¿)n - A - (R?2¿)m]?+¿

Les compositions dentaires mises au point dans le cadre de la présente invention sont utilisables pour la réalisation de prothèses dentaires et pour la restauration dentaire. Elles comprennent (1) une solution concentrée de silice constituée de particules colloïdales de silice amorphe dans au moins une phase continue silicone constitué d'oligomère et/ou polymère silicone réticulable et/ ou polymérisable, (2) au moins un photosensibilisateur et (3) et un amorceur cationique choisi parmi ceux dont l'entité cationique est sélectionnée parmi les sels d'onium de formule (I) : [(R?1¿)n - A - (R?2¿)m]?+¿

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