(19)

(11)

EP 0 975 304 A1

(12)

(43) Date of publication: 02.02.2000 Bulletin 2000/05 (21) Application number: 98917892.6 (22) Date of filing: 14.04.1998

(51) International Patent Classification (IPC)7: A61K 6/00 (86) International application number: PCT/SE9800/678 (87) International publication number: WO 9846/194 (22.10.1998 Gazette 1998/42)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB IT LI NL SE (30) Priority: 16.04.1997 SE 9701403 (71) Applicant: Dental Therapeutics AB 131 33 Nacka (SE)	(72) Inventor: HAGNE, Leif S-435 44 Mölnlycke (SE) (74) Representative: Karlsson, Leif Karl Gunnar  L.A. Groth & Co. KB,Box 6107 102 32 Stockholm 102 32 Stockholm (SE)