DE2348728A1 - INTRA-ORAL TEETH ALIGNMENT DEVICE - Google Patents

Description

14.424 / 5 30 / egg

ÄLg

I *, rer. nat DlETEU LOUIS DipL-Phys. CLAUS PÖHLAU Dipl.-Ing. FRANZ LOHRENTZ
NORNBERQ
KESSLERPLATZ 1

Mr. Alberto Julio CERVERA DURAN, Madrid / Spain

Intra-oral device for aligning teeth

The invention relates to an intra-oral device for aligning the teeth, in particular such an intra-oral device Device with a device for applying extra-oral Forces on the device.

The invention is generally concerned with dental equipment, as they are generally used in orthodontics as intra-oral tooth positioning devices and are described, for example, in U.S. Patents 3,178,820 and 3,531,222. The present invention however, represents a considerable improvement over these known devices, which were previously used as positioning

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directions were addressed or offered. A device for aligning the teeth is within the meaning of the invention to understand a tooth positioning device with embedded resilient devices for application extra-oral forces on the intra-oral element which is housed within the patient's mouth.

The retention of resilient elastic intra-oral devices according to the state of the art is despite the recent technical developments with which the use of Retention springs were introduced, difficult. The present combination of resilient intra-oral apparatus with the use of extra-oral forces allows the patient to adapt to the use of the Device inside the mouth and a retention element is created in which the device does not accidentally and unintentionally get out of the mouth of someone who wears it while sleeping.

The main aim of the invention is to increase the effectiveness of the intraoral device or device worn by the patient amplify and improve by using extra-oral powers in such a way that the course align the dental arch and alveolar bone and further so that the adaptation for the person wearing the device to the intra-oral device is facilitated

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is provided by means of continuous retention during of the sleeping times provided by originate from the extra-oral forces applied. The invention is also intended to provide a device be, which has a resilient bzv /. Has resilient elastic body and means for receiving the extra-oral Forces includes so that the face growth of the patient influenced or an endeavor to an undesired growth is influenced or stopped. With the device according to the invention it should be possible to use a Modellierbzw. Alignment force on the dental arch and the maxillary bone by means of extra-oral forces, so as to allow the upper dental arch and the maxillary bone to grow to prevent or inhibit forward and downward. A modeler or alignment force should also be made available can be that of the upper dental arch and upper jawbone backwards and upwards afterwards the extraction of the selected teeth works during the child's growing season. After all, with the Subject of the invention the lower dental arch and the lower jaw are prevented during the action of the extra-oral forces acting backwards to grow forwards when there is a tendency towards prognathism and the lower jaw grows faster forward from the upper jawbone.

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In order to achieve the object on which the invention is based, a device of the type mentioned at the beginning is now proposed Kind to train that it consists of a resilient positioning element for the teeth as well as one embedded therein resilient device for the application of extra-oral, directed forces.

Further features, details and advantages of the invention emerge from the following description in a preferred manner Embodiments based on the drawing. Show it:

Figure 1 is a perspective view of a model of the teeth of the maxillary arch of an im Growth child in whom only the first two molars are missing and a gap exists and further the six front teeth outward are directed so that it is necessary to move one backwards and on these teeth to let the force directed above act;

2 shows a perspective view of an upper mono-maxillary device according to the invention, from which the holding means for the Gesichtsbo- gene are shown, which in the intra-

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Oral spring-elastic alignment device incorporated to apply the extra-oral forces is;

Figure 3 is a perspective view of the device 2 in principle corresponding device, but now instead of one Facebow J-hooks are provided which are incorporated into the elastic material and for attaching a certain type of extra-oral device, which usually referred to as the "J-hook type" will be determined;

FIG. 4 shows a device according to the embodiment of FIG. 3 with separate J-hooks for illustration another type of J-hooks embedded in the resilient intra-oral apparatus;

FIG. 5 shows a perspective view of the same dental device as shown in FIG. 2, but now showing the smooth part of the underside of the upper jaw with a support to allow for the ability to speak (lingual aspect) of the lower incisors;

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Figure 6 is a perspective view of a model of the teeth of the lower arch to be used against the smooth surface and the support elements to allow for the ability to speak would come for the lower incisors;

FIG. 7 shows a bottom view of a device according to FIG Invention and

FIG. 8 is a perspective view of a J-hook of the type used in the embodiment of FIG will.

From the drawing, in particular Figures 1 to 4, it can be seen that a device which in accordance constructed with the invention and provided generally in the drawing with the reference numeral 10, for use is suitable by patients who have a desire to develop their teeth in a forward-facing manner Direction - or in any other direction in which the growth of the teeth is to be stopped or to delay, and so to the upper jawbone with the help of the application of extra-oral forces model that of any outside of the mouth. located part are supported, namely by means of

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other devices that simultaneously generate the necessary forces.

The device 10 has an elastically resilient intra-oral body 11 of the type previously used in orthodontics has been used, but never before in combination with a face bow 12 which has an inner bow portion 13, which is molded into the body 11, or in combination with the engagement elements 14 or 14a (FIGS 3 or 4) for the extra-oral forces acting. These attack elements for extra-oral forces were previously never used in connection with resilient intra-oral devices, but only in connection with fastened bands, tubes and hooks that are soldered to apparatus or devices, which in turn are attached to the teeth be attached.

The main advantage of the subject matter of the invention is that the modeling and retraction forces, which act on the dental arch and the maxillary bones, can be applied indirectly to the teeth, namely with the help of extra-oral forces via an intermediary intra-oral spring-elastic bodies act. It allows corrections and alignment of the dental arches and maxillary bones.

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The combined use of extra-oral forces and springy intra-oral facilities provides an alignment mechanism which acts on the dental arch and the maxillary bone and which both acts against the The jawbone of the upper dental arch or against the lower dental arch can be inserted independently as well against both arches at the same time.

One type of the aforesaid hooks enclosed in the elastic material is shown in FIG. Another type of hook that can be attached at a later date when the alignment device is from is bi-maxillary type, Figures 4 and 8. The Hook 14 (Figure 3) is made so that only one wire is passed through the body 11 and its ends be bent into hooks. The hook 14a (Figures 4 and 8) is created in such a way that two wires are passed through the body 11 and that one end becomes a hook and the the other end is deformed to form a holding element 14b (FIG. 8). The use of the intra-oral arch that is used within the elastic intra-oral apparatus is enclosed or embedded and forms a unit with it, allows in a very special way the transmission of a uniform force to the entire upper body Dental arch, at the same time a damping due to the elastic properties of the intra-oral apparatus

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formed material takes place. The combination of different directions of force, the outside or the outside Attacking ends of the face-bow, causing the ends of the face-bow to move into different positions leads to the fact that the resultant of the force vectors acts against the maxillary bone and the teeth in one direction, which is likely to wacixotum tendencies that normally to prevent deformation of the dental arches or in a direction towards the starting position before deformation of the teeth, if it is the case with the patient is an adult.

The use of the enclosed or attached (removable) Hook allows the extra-oral forces to act whenever the patient so desires the permanent presence of the face-bow does not bother him, or it becomes a possibility for the patient given to only wear the intra-oral device if, for aesthetic reasons, the use of the extra-oral device Part of the device does not want.

The action of the extra-oral forces also serves to hold the device in place, thereby preventing it will fall out during the night when the wearer is sleeping. It also serves to make things easier the adjustment of the device against the dental arches. This

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last point of view is important when elasticity of the intra-oral body should have an effect Correct and nodulate the position of the teeth and the alveolar bone.

The face bow and hook can be of any suitable one Material to be made. Preferably, however, they will be made of stainless steel, an alloy as it has already been used in orthodontics.

Finally, it must be taken into account that modifications and changes regarding the design of intraoral Combination devices with an attack element for extra-oral forces, as they are the subject of the invention, can be made without departing from the scope of the present invention. It is only important that one Combination of an intra-oral, elastic apparatus with a possibility for the application of extra-oral forces exists.

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Claims (5)

Patent (protection) claims: 1. / Intra-oral device for aligning the teeth, thereby characterized in that it consists of a resiliently elastic positioning element (11) for the teeth and one therein embedded resilient device (12, 14, 14a) for applying extra-oral, directed forces . 2. Apparatus according to claim 1, characterized in that the resilient device from the inner bow part (13) a conventional face bow (12) is formed. 3. Apparatus according to claim 1, characterized in that a resilient Einrichtugg in the positioning element (11) embedded wire (14) is used, which penetrates the positioning element and hooks its ends are bent. 4. Apparatus according to claim 1, characterized in that the resilient device (14a) has a pair of wires guided through the positioning element (11), one end of each wire to a hook and the other end to a fixing end piece (14b) is shaped. 409850/0232 5. Device according to one of the preceding claims, characterized in that the positioning element (11) comprises a biseplate extension. 409850/0232