Abstract: A whitening smart pen apparatus (10) for automatically dispensing a teeth whitening substance onto one or more teeth of a user comprises a fluid reservoir (16), a nozzle (18) having an output port (26), a fluid dispenser (20), a sensor (22) and a controller (24). The fluid dispenser dispenses the teeth whitening substance from the fluid reservoir to the nozzle and is output via the output port. The sensor, positioned in an advance dispensing direction of the nozzle, senses a target surface that comprises either (i) a tooth surface (12) or (ii) other surface (14). The controller (24) is configured for (i) controlling a gating of the fluid dispenser (20) to dispense the teeth whitening substance from the fluid reservoir (16) in response to the sensor (22) detecting the tooth surface (12), and (ii) stopping or disabling the gating of the fluid dispenser to stop or disable a dispensing of the teeth whitening substance from the fluid reservoir in response to the sensor (22) detecting the other surface (14).

Abstract: A whitening smart pen apparatus (10) for automatically dispensing a teeth whitening substance onto one or more teeth of a user comprises a fluid reservoir (16), a nozzle (18) having an output port (26), a fluid dispenser (20), a sensor (22) and a controller (24). The fluid dispenser dispenses the teeth whitening substance from the fluid reservoir to the nozzle and is output via the output port. The sensor, positioned in an advance dispensing direction of the nozzle, senses a target surface that comprises either (i) a tooth surface (12) or (ii) other surface (14). The controller (24) is configured for (i) controlling a gating of the fluid dispenser (20) to dispense the teeth whitening substance from the fluid reservoir (16) in response to the sensor (22) detecting the tooth surface (12), and (ii) stopping or disabling the gating of the fluid dispenser to stop or disable a dispensing of the teeth whitening substance from the fluid reservoir in response to the sensor (22) detecting the other surface (14).

Abstract: A method of tooth whitening including the application of a tooth whitening composition to teeth including an aqueous activation part comprising a peroxide activating component, and a peroxide part comprising a peroxide component that does not contain a peroxide stabilizer, wherein the activation part and the peroxide part are each flowable compositions.

Abstract: A tooth whitening composition includes an aqueous activation part comprising a peroxide activating component, and a peroxide part comprising a peroxide component that does not contain a peroxide stabilizer, wherein the activation part and the peroxide part are each flowable compositions.

Abstract: In an embodiment, a tooth whitening accelerator composition includes a salt of boric acid dissolved in a polyol carrier. The tooth whitening accelerator composition can be used in a method of whitening teeth that includes applying the tooth whitening accelerator to teeth and applying a tooth whitening formulation to the teeth.

Abstract: A tooth whitening composition includes an aqueous activation part comprising a peroxide activating component, and a peroxide part comprising a peroxide component that does not contain a peroxide stabilizer, wherein the activation part and the peroxide part are each flowable compositions.

Abstract: In an embodiment, a tooth whitening accelerator composition includes a salt of boric acid dissolved in a polyol carrier. The tooth whitening accelerator composition can be used in a method of whitening teeth that includes applying the tooth whitening accelerator to teeth and applying a tooth whitening formulation to the teeth.

Abstract: A method of making pressable porcelain restorations. A predetermined amount of porcelain powder is provided to a refractory mold in a lost wax method. The powder may be a blend of different colored powders in order to provide a restoration of a particular shade.

Abstract: Dental bleaching compositions, and methods of using the same are disclosed.