The present invention relates to an apparatus and a method for determining impedance (AC resistance) on a tooth. The impedance is determined by measuring the voltage at a given current intensity or by measuring the current intensity at a given voltage. Determining the impedance on a tooth is used for diagnosing tooth decay.

The present invention relates to an apparatus and a method for determining impedance (AC resistance) on a tooth. The impedance is determined by measuring the voltage at a given current intensity or by measuring the current intensity at a given voltage. Determining the impedance on a tooth is used for diagnosing tooth decay.

A work light comprises an elongate circuit board having a length extending between a connection end and a free end and a width extending between a left side and a right side. A light emitting diode is mounted on the elongate circuit board. An elongate protective cover has a length extending between a mounting end and a free end, and generally surrounds at least most of said elongate circuit board. The protective cover may comprise a suctioning tube having a fluid ingress and a fluid egress. The suctioning tube is connectable at the mounting end to a source of suction.

A dental valve device has a valve body having a tip receiving end having a flexible tubing extending outwardly from the tip receiving end with the flexible tubing having a flexible tubing opening, a hose receiving end, a lumen formed between the flexible tubing opening and the hose receiving end, and a partial opening formed in the valve body, and a rotatable valve sealing body adapted to be inserted into the partial opening, the rotatable valve sealing body having a bore for alignment with the lumen formed between the flexible tubing opening and the hose receiving end, the bore having a tip receiving opening and a hose receiving opening.

A saliva collection and testing system comprising an electric toothbrush (1) suitable for taking a user's saliva by way of taking means (15), and a test unit (21) for testing the taken saliva, said test unit (21) including a seat (22) for the electric toothbrush (1) comprising means (25, 33) for taking the saliva collected by the toothbrush, said test unit (21) cleaning-up the saliva taking means (15) of the electric toothbrush (1) after saliva is taken so as to prepare said electric toothbrush (1) to a subsequent use. A digital tooth fingerprint sensor is present on the toothbrush and allows to recognize the user. Advantageously the test results are sent to a remote unit via a wireless system and in an encrypted mode for their subsequent processing by one or several Machine Learning algorithms which exploit an Artificial Intelligence.

Apparatus for ensuring adequate sunscreen protection includes a light-activated sunscreen product, and an illuminator including a battery, a switch and a light source that causes the light-activated sunscreen product to glow when illuminated with the light source. The light-activated sunscreen product may include a zinc-oxide-based lotion and a fluorescent substance such as fluorescein dye causing the lotion to glow in any available color when applied to the skin and illuminated by the light source. The closure may be a cap with a threaded attachment to the container, and the light source may comprise one or more ultraviolet light-emitting diodes. The illuminator may be disposed in a cap with top and side surfaces, and the switch may be positioned on the side of the cap, and the light source on the top of the cap, or vice versa. The switch is preferably a momentary contact switch.

The present invention provides dental amalgam recycling systems, useful for recycling particles from a dental liquid effluent drawn, for example, from a suctioning device.

A disposable dental valve device has a valve body having a tip receiving end, a hose receiving end, a lumen formed between the tip receiving end and the hose receiving end, a first partial opening formed in the valve body and a second partial opening formed in the valve body, and a movable valve sealing device adapted to being inserted into one of the partial openings, the movable valve sealing device having an opening for alignment with the lumen formed between the tip receiving end and the hose receiving end, the movable valve sealing device having a check valve positioned in the opening, and the movable valve sealing device having a top for positioning the movable valve sealing device between a closed position and an opened position.

A disposable dental valve device has a valve body having a tip receiving end, a hose receiving end, a lumen formed between the tip receiving end and the hose receiving end, a first partial opening formed in the valve body and a second partial opening formed in the valve body, and a movable valve sealing device adapted to being inserted into one of the partial openings, the movable valve sealing device having an opening for alignment with the lumen formed between the tip receiving end and the hose receiving end, the movable valve sealing device having a check valve positioned in the opening, and the movable valve sealing device having a top for positioning the movable valve sealing device between a closed position and an opened position.

A saliva management system may be configured to manage fluid transfer with respect to first and second bodily regions. The system may include an anchoring member and a connector member. The anchoring member may be configured conformingly engage the first and second bodily regions. The connector member may include a capture portion and a fluid transfer portion. The capture portion may be configured to receive a central portion of the anchoring member. The fluid transfer portion may be being fluidically connected to a supply source.