A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 6/027 (2006.01) A61K 6/02 (2006.01) A61K 6/06 (2006.01) A61K 6/083 (2006.01) C09K 9/02 (2006.01)
Patent
CA 2177303
The invention relates to dental materials which contain a photochromic material such as for example a photochromic dye, a photochromic glass, a photochromic ceramic and/or a photochromic glass ceramic and which can be visually distinguished from natural tooth material after irradiating with light, but which assume their original colour again after a certain period has expired.
Burtscher Peter
Durr Heinz
Rheinberger Volker
Salz Ulrich
Ivoclar Ag
Ridout & Maybee Llp
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