Use of ceramics in dental and orthodontic applications

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EP 2 684 556 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 A2)

(48)	Corrigendum issued on:
	02.04.2014 Bulletin 2014/14

(43)	Date of publication:
	15.01.2014 Bulletin 2014/03

(21)	Application number: 13180442.9

(22)	Date of filing: 13.01.2004

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International Patent Classification (IPC):

A61K 6/02^(2006.01)
C04B 33/00^(2006.01)

C03C 10/00^(2006.01)
C04B 35/00^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

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Priority:

05.02.2003 US 358856

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	04701764.5 / 1589932

(71)	Applicant: 3M Innovative Properties Company
	St. Paul, MN 55133-3427 (US)

(72)	Inventors:
	Cummings, Kevin M. Saint Paul, MN 55133-3427 (US) Rolf, Jacqueline C. Saint Paul, MN 55133-3427 (US) Rosenflanz, Anatoly Z. Saint Paul, MN 55133-3427 (US) Rusin, Richard P. Saint Paul, MN 55133-3427 (US) Swanson, Jerome E. Saint Paul, MN 55133-3427 (US)

(74)	Representative: Vossius & Partner
	Siebertstrasse 4 81675 München 81675 München (DE)


	Remarks:
	This application was filed on 14-08-2013 as a divisional application to the application mentioned under INID code 62.

(54)	Use of ceramics in dental and orthodontic applications

(57) The present invention relates to an article comprising at least one of a glass or glass-ceramic comprising Al₂O₃ and at least one of REO or Y₂O₃, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprise the Al₂O₃ and the at least one of REO or Y₂O₃, and wherein the glass or glass-ceramic contains not more than 20 percent by weight SiO₂ and not more than 20 percent by weight B₂O₃, based on the total weight of the glass or glass-ceramic.