JPH03234254A - Corrective instrument for enlarging set of teeth - Google Patents

Abstract

PURPOSE: To expand the rear portion of teeth for correcting the tooth row under the mixedly existing state of a milk tooth or milk tooth and permanent tooth by forming an elongated recess receiving the tooth row of a patient between the cheek side edge and tongue side edge of a U-shaped orthodontic implement to make receiving ports for receiving individual teeth larger than the normal interval between teeth. CONSTITUTION: An orthodontic implement 10 is U-shaped to be embedded in the upper and lower jaws and has on the outside a lip-cheek side edge 12 and on the inside a tongue side edge 14 so that the respective edges project upward and downward to connecting glen parts 16 embedded in the engaging surfaces of teeth of the orthodontic implement 10 for expanding the upper and lower jaws. A region between both edges 12, 14 forms the shape of a groove 18 in the incisor region and forms individual receiving ports 20 for the canine-second molar. The groove 18 in the lower jaw is formed to the erect posture to set an angle A between the incisor and lower jaw plane to about 85 deg.. A distance 22 between the canines, a distance 24 between the first milk-molar teeth and a distance 26 between second milk-molar teeth are expanded by a necessary amount, i.e., by about 1-20mm from the normal position so that the teeth move to the cheek side. Thus, molars are moved to the expansion position of the orthodontic implement to expand intervals to the incisor.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is a tooth positioning device, particularly for orthodontic treatment of deciduous teeth or a mixture of deciduous and permanent teeth, in order to enlarge the rear part of the teeth. Concerning the equipment used.

BACKGROUND OF THE INVENTION Dental overcrowding, particularly in the front teeth, is corrected by orthodontic treatment. Often metal bands or wires are used during the growth stage of permanent teeth.

Used to secure the necessary space. Also, my previous device presented in U.S. Pat. No. 4,139,944,
That is, devices such as tooth positioning instruments have been provided which are used to correct the alignment of teeth during the stage of permanent tooth growth or the stage of a combination of baby teeth and permanent teeth.

[Problems to be Solved by the Invention] The present invention provides a U-shaped orthodontic appliance for use in the upper and lower jaws, which has a connecting isthmus or connecting plate that fits into the occlusal surface of the teeth. . This appliance may be used only on baby teeth or on a mixture of baby and permanent teeth. A mixed state is a state in which the upper and lower permanent incisors (central incisors and survey*), first permanent molars, deciduous canines, and first and second deciduous molars form #4.The posture for correcting the incisors is as follows: In order to prevent the lower incisors from tilting labially as the canines and molars develop, the lower incisors are placed in a particularly upright position (85° to the plane of the mandible).
Alternatively, the lateral spacing between the canines, the first interdental spacing, and the second interdental spacing may be expanded from their normal positions by, for example, about 7 degrees, such that the incisor spacing is 130'). , the distance between the median plane and the distal canines is widened by, for example, about 4 mm from the normal position.

Orthodontic appliances have sockets attached to each of the back teeth, and at the age of mixed tooth growth, the patient's mouth is still in its early stages of development, so the back teeth can only be expanded by the pre-shaped orthodontic appliances. Move to the position indicated and widen the distance from the incisors.

[Example] FIG. 1 shows an orthodontic appliance 10 based on the @ principle of the present invention as an interlocking diagram or a plan view. The orthodontic appliance 10 is U-shaped so as to fit into the upper and lower jaws of a person. The orthodontic appliance has an outer labial-buccal edge 12 and an inner lingual edge 14;
14 project upwardly and downwardly, respectively, to a connecting isthmus or plate 16 that fits into the occlusal surfaces of the teeth of an orthodontic appliance for expanding both the upper and lower jaws. The orthodontic appliance can also be used on either the upper or lower jaw, in which case the edges are adapted to extend only upwardly or downwardly, respectively.

Three different types of orthotics are offered. That is, there are three types: those used for only deciduous teeth, those used for both deciduous and permanent teeth, and those used at the permanent tooth stage. When deciduous and permanent teeth are mixed, the upper and lower permanent incisors (center and surveying teeth), first permanent molars, deciduous canines, and
This stage consists of deciduous molars and second foraminal molars.

The area between the margins 12 and 14 is generally in the form of a continuous groove 18 in the incisor region and a separate socket or depression 2 for the canine, primary molar, and second foraminal molar.
0 is provided.

The grooves 18 for the incisors are formed, especially in the lower jaw, in an upright position, and in order to prevent the lower incisors from tilting labially as the canines and molars grow, the angle A between the incisors and the mandibular surface so that it is about 85°.

The orthodontic appliance has a distance between the canine teeth 22, a distance between the milky white teeth 24,
The second deciduous interdental distance 26 is expanded by the required amount, ie about 1-20 mm from their normal position, so that the teeth therein are moved buccal.

The receptacles 20 for the canines and molars are also positioned posteriorly from their normal positions, reducing the median-to-posterior distance 28 between the canines by the required amount, i.e. from their normal size to approximately Expand by an amount of 1-15+++m. In this way, the teeth behind the canines move toward the buccal side and at the same time move toward the back, securing space for the canines.

In Figure 1, the dotted line indicates the normal tooth position, and it can be seen that the socket for the tooth behind the canine is located further back and on the buccal side than the normal tooth position. .

FIG. 5 illustrates the condition of teeth that have been treated long enough using the orthodontic appliance 10, where the rear teeth are expanded and fit into the orthodontic appliance sockets.

It will be apparent from the foregoing specification that various modifications and changes may be made and implemented, particularly those different from those described in the foregoing specification and examples. It is to be understood that I wish to practice within the scope of the patents herein filed, with reasonable and appropriate modifications that are within the scope of my contributions to this art.

[Brief explanation of drawings]

Fig. 1 is a diagram of the occlusal surface of the orthodontic appliance based on the principle of the present invention, Fig. 2 is an elevation view of the orthodontic appliance of Fig. 1 seen from the buccal side, and Fig. 3 is the diagram of Fig. 1. FIG. 4 is a cross-sectional view generally taken along line TV-IV of FIG. 1; FIG. . 10... orthodontic appliance, 12... bulge and buccal edge,
14...Lingual edge, 16...Connecting isthmus, 18...
- Elongated depression, 20... Tooth socket, 22... Distance between canines, 24... Distance between the first and milky white teeth, 26... Distance between the second foraminal molars.

Claims (13)

[Claims] (1) A type of orthodontic appliance (10) that is generally U-shaped in plan view, and has an elongated recess (18) for receiving the teeth of at least one of the upper and lower teeth of the patient's dentition; The depressions are located at the lip and buccal edges (12) and at the lingual edges (12).
4), the orthodontic appliance is pre-shaped for each of the canines and molars to have sockets (20) for receiving the individual teeth, and the sockets are formed in the normal lateral direction of the patient. The positional relationship is larger than the distance between the teeth,
orthodontic appliances. 2. The orthodontic appliance of claim 1, wherein the lateral spacing of the tooth sockets is 1-20 mm greater than normal tooth spacing. (3) The tooth according to claim 1, wherein the distance between the median plane and the far side from one canine tooth socket to the other canine tooth socket is larger than the normal distance between the median plane and the far side between both of the patient's canine teeth. Alignment correction equipment. (4) The distance between the median plane and the far end of the canine socket is 1-15 mm wider than the normal distance between the median plane and the far end of the canine tooth.
The orthodontic appliance according to claim 3. (5) The orthodontic appliance according to claim 1, having elongated grooves on the upper and lower sides. (6) Orthodontic appliances, generally U-shaped, used for the expansion of at least one of the upper and lower jaws during the early stages of tooth growth of the patient; and the appliance is pre-molded with individual tooth receiving sockets for each of the canine and molar teeth, the sockets extending from one canine socket to the other. An orthodontic appliance in which the median and distal distances to the canine sockets of the teeth are larger than the median and distal distances between the patient's normal canine teeth. (7) The orthodontic appliance according to claim 6, wherein the distance between the median plane and the far side between the sockets of the canine teeth is larger in the range of 1 to 15 mm than the distance between the median plane and the far side of a normal canine tooth. (8) The orthodontic appliance according to claim 6, wherein the lateral spacing of the sockets is larger than the lateral spacing of the patient's normal teeth. (9) The orthodontic appliance according to claim 8, wherein the lateral spacing of the sockets is greater than normal tooth spacing in the range of 1-20 mm. (10) The orthodontic appliance according to claim 6, wherein the elongated groove is provided on both the upper and lower sides. (11) A method of positioning teeth, in which teeth are generally U-shaped in plan view and have at least one of the upper and lower tooth receiving grooves for receiving and positioning the teeth. providing an orthodontic positioning appliance, the step of providing an orthodontic appliance comprising selecting a positioning appliance having elongated grooves with indentations for the patient's canines and individual indentations for the patient's molar teeth; said indentations are sized to correspond to the normal spacing of canine teeth, said indentations relative to the molar teeth have a lateral spacing greater than the normal lateral spacing of the patient's molar teeth, and at a developmental stage of the patient's teeth; Use this positioning device in any stage of deciduous teeth, mixed deciduous and permanent teeth, or permanent teeth, and use this to expand the molars toward the buccal side or in the back direction. How to position teeth. 12. The method of claim 11, wherein the preparing step is to provide a positioning device with elongated grooves on both the upper and lower sides for receiving the teeth. (13) The method according to claim 11, wherein the preparing step is a step of preparing a positioning instrument in which the distance between the median plane and the far side of the recess for receiving the canine tooth is larger than the distance between the median plane and the far side of the patient's canine tooth. .