Description     Claims  

EP1935395B1   [0002] 
US6030222A   [0003] 
US20120093905A   [0003]  [0030]  [0035] 
WO2005028604A   [0036] 
WO2004081222A   [0036] 
US6074629A   [0036] 
US6495352B   [0036] 
US20130091637A   [0036] 
US5188821A   [0049] 
US5192531A   [0049] 
US4842847A   [0049] 
US4866161A   [0049] 
US3538230A   [0053] 
US3862307A   [0053] 
US4340583A   [0053] 
US3535421A   [0060] 
US4885155A   [0060] 
US3678154A   [0060] 
US5292526A   [0063] 
US3959458A   [0067]  [0070] 
US3937807A   [0067]  [0070] 
US4051234A   [0067] 
US5004597A   [0070] 

Synthesis, Properties, and Applications of Organic Dyes and Pigments   [0022] 
CHEMICAL ABSTRACTS   [0024] 
CHEMICAL ABSTRACTS   [0024] 
CHEMICAL ABSTRACTS   [0024] 
CHEMICAL ABSTRACTS   [0024] 
CHEMICAL ABSTRACTS   [0024] 
A review of tooth colour and whiteness   [0078]