Dentaurum J.p. Winkelstroeter Kg

J.p. Winkelstroeter Kg, Dentaurum

Friedrich Binder

Friedrich-Wilhelm Rohlcke

Berthold Walter

Horst Kalytta

Manfred Rapp

In an orthodontic appliance, referred to as Herbst hinge, for the forward displacement of the lower jaw of a patient, with a pair of telescopes, each comprising a telescopic tube and a telescopic slide rod, which are attachable at their free ends in each case via a joint to the patient's upper jaw and lower jaw, respectively, for increasing the freedom of movement of the lower jaw while at the same time achieving the therapeutically desired forward push onto the lower jaw, it is proposed that the telescopes in the telescoped state be rigid, as known per se, but in the extended state be flexible.

Orthodontic appliance for the forward displacement of the lower jaw

Dental appliance to be worn in the mouth consisting of a meltable material, this appliance having a bonding surface to be bonded to a tooth region in a form-locking and substance-bonding manner, this surface possessing at least retention areas with recesses produced by melting the material by means of a laser beam, at least some of these recesses forming undercuts, wherein for achieving a high bonding strength the retention areas have next to the recesses a plurality of irregular elevations which are formed by the material melted during the formation of the recesses and of which at least some likewise form undercuts, wherein at least some of these elevations each have a volume equal to a fraction of the volume of the largest of these recesses. A dental appliance with a bonding surface designed in this way may be produced particularly simply when a laser beam is guided over the bonding surface in such a manner that material of the dental appliance is melted and/or vaporized at those points of the bonding surface, at which recesses are formed, is thereby ejected from the resulting recesses and forms elevations in the vicinity of the recesses.

Dental appliance to be worn in the mouth, in particular in the form of a

Expansion screw for tooth adjustment

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Kieselbronn, Germany

Friedrich Binder