Patent ID: 6840771

Claim:
A tooth whitening appliance for the administration of a tooth whitening preparation, the appliance having a plan configuration for overlying buccal surfaces of selected target teeth of a dental arch, the appliance comprising a casing and a formative liner, the casing including a panel and a transverse ledge extending from the panel, the ledge having a free distal edge, the ledge being configured to engage occlusal surfaces of target teeth, the panel and the ledge defining a substantially “L” shaped transverse cross section throughout the casing, the formative liner having theological characteristics suitable for implementation as a dental impression material, the formative liner being carried by the panel, the formative liner receiving the impression of the buccal surfaces of the target teeth when the appliance is fitted, the formative liner being adapted to overlie a tooth whitening preparation positioned between the buccal surfaces and the impression of the buccal surfaces during administration of the tooth whitening preparation.