A suction ring for mounting close to the mouth opening of a dental patient, comprising an extraoral tensioning element. The tensioning element is realised as a suction tensioning element and forms or spans a negative pressure space with a film element. The negative pressure space extends annularly or partially annularly, and the negative pressure space has at least one suction nozzle, in particular pointing radially inwards.

An intraoral inflatable isolator (III) for an oral cavity of a patient, the III including: a compressed-air port; and an inflatable membrane dimensioned to be insertable into the mouth and connected to the compressed-airport, the membrane being configured to inflate upon application of compressed air from the compressed-air port to isolate within the oral cavity.

An intraoral inflatable isolator (III) for an oral cavity of a patient, the III including: a compressed-air port; and an inflatable membrane dimensioned to be insertable into the mouth and connected to the compressed-airport, the membrane being configured to inflate upon application of compressed air from the compressed-air port to isolate within the oral cavity.

An assistant tool for dental treatment is provided, including an inner frame inserted into an oral cavity, and a retraction member coupled to the inner frame to retract tissues around the oral cavity, in which the assistant tool includes a holder provided on at least one of the inner frame and the retraction member to fix a suction, and configured such that one side of the suction is positioned at a normal position on a predetermined portion in the oral cavity.

An assistant tool for dental treatment is provided, including an inner frame inserted into an oral cavity, and a retraction member coupled to the inner frame to retract tissues around the oral cavity, in which the assistant tool includes a holder provided on at least one of the inner frame and the retraction member to fix a suction, and configured such that one side of the suction is positioned at a normal position on a predetermined portion in the oral cavity.

The invention discloses an improved dental aerosol evacuation system equipped with a barrier cover subsystem in a dental procedure. Due to its dome-like special shape and other particular shapes, the barrier cover of the subsystem possesses a vacuum collecting capability that also physically blocks the spread of dispersed aerosols, blood components, and/or droplets during the dental procedures. At least a throughput connecting hole is connected from the curved barrier cover to the proximal end of the suction tubing of the subsystem. The vacuum collecting subsystem of the invention evacuates all or most of the collected unhealthy risk factors out of the treatment room completely for safety of patients, staff, and practitioners.

The invention discloses an improved dental aerosol evacuation system equipped with a barrier cover subsystem in a dental procedure. Due to its dome-like special shape and other particular shapes, the barrier cover of the subsystem possesses a vacuum collecting capability that also physically blocks the spread of dispersed aerosols, blood components, and/or droplets during the dental procedures. At least a throughput connecting hole is connected from the curved barrier cover to the proximal end of the suction tubing of the subsystem. The vacuum collecting subsystem of the invention evacuates all or most of the collected unhealthy risk factors out of the treatment room completely for safety of patients, staff, and practitioners.

The invention relates to a dental suction device (10) for suctioning liquids and particles from an oral cavity of a patient, with a tubular hollow base body (12) having an inner surface (14), an outer surface (16), a longitudinal axis (X-X), a connection opening (18) for a hose, and a suction opening (20). In the course of the extent of the base body (12), an objective (50) is provided, which can be connected to a monitor (40), and by means of which the image taken by the objective (50) can be displayed.

The invention relates to a dental suction device (10) for suctioning liquids and particles from an oral cavity of a patient, with a tubular hollow base body (12) having an inner surface (14), an outer surface (16), a longitudinal axis (X-X), a connection opening (18) for a hose, and a suction opening (20). In the course of the extent of the base body (12), an objective (50) is provided, which can be connected to a monitor (40), and by means of which the image taken by the objective (50) can be displayed.

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.