MX2008005536A - Method and kit including stop elements for correcting dental malocclusions with pre-formed nitinol arches - Google Patents

Abstract

The invention relates to a method and a kit for correcting dental malocclusions. The inventive kit consists of at least one pre-formed arch for nitinol orthodontics and at least two perforated silver spherules which when introduced into the arch and deformed remain fixed to the arch, serving as a stop element. The inventive method consists in:positioning the necessary elements;aligning the teeth with the application of the preformed nitinol dental arch, having stop elements abutting thereagainst;closing the spaces;performing a levelling step;and applying a pretorque and a torque.

Description

METHOD AND "KIT" WITH STOPS FOR THE CORRECTION OF DENTAL MALOCCLUSIONS WITH PREFORMED ARCHES NITINOL TECHNICAL FIELD OF THE INVENTION The present invention has its field of application in the area of orthodontics, mainly in the devices used for the correction of the position of the teeth, since it provides a method and "kit" for the correction of dental malocclusions, with the formation of a pre-shaped nitinol dental arch with stops.

BACKGROUND The magnitude of the force necessary to move a tooth is very low, around 0.025 g / cm2, equivalent to the pressure of the capillaries of the dental apparatus; as higher levels of force will cause hyalinization or necrosis and pain, of neighboring tissues. That is why we should always measure the force that we apply on the dental apparatus, with the wires that we use; such is the case of very elastic Nitinol wires, with which we can move the teeth at a considerable distance, without developing excessive force. { Atlas of Orthodontics, Principles and Applications Dr. Anthony Vyazis, Assistant Professor of Orthodontics Baylor Collage of? Entistry, bailes, Texas. Edition 1995).

Wires of the braided type such as "T ist Flex", "Respond", "TripleFlex", "Coaxial", "Turbo", "Forcé 9", have great resilience and They help to unlearn. The "Blue Elgi loy" and the Yellow, are steely wires with treatment. The "TMA", which is Titanium-Molybdenum, is a very resilient wire that can be manipulated. The "Ht- (5old") for patients requiring maximum anchoring, dólicos, Class II-l, which are very unstable patients, due to their weak musculature.The Cu-Niti, with copper alloy, which gives great Resistance (Clinical bianostics and Laboratory of Wire Bending ür Guillermo del Valle, br. Luis Ruiz Martínez, Orthodontics I.b.A.P., Guadalajara, Jal. Mexico).

Nowadays it is well known the use of the preformed dental arches of Nitinol (Nickel-Titanium), for the correction of the position of the teeth, fact that came to revolutionize the field of Orthodontics, due to the characteristics of elasticity of the same . However, said dental arches of Nitinol, I believe that they are not sufficiently exploited, especially when you do not want the sliding of the same in the tubes of the bands and that therefore it does not take full advantage of the elasticity that said material provides.

In the case of steel wires and dental arches, sliding is prevented by means of bends, which is feasible due to the characteristics of the material; but obviously in the arches of Nitinol we can not make folds also by their characteristics already mentioned.

Therefore, to avoid all the aforementioned drawbacks, a preformed dental wire with stops was developed to prevent the sliding of the dental arches of Nitinol, which I describe below.

DETAILED DESCRIPTION OF THE INVENTION The characteristic details of the method and "Kit" to take full advantage of the dental arch of Nitinol, to correct dental malpositions are described below and with the support of the accompanying figures, which I mention only as an example and should not be considered as limiting to the present invention.

Brief Description of the Figures.

Figure 1.- It is a conventional perspective view of the components of the "Kit" of the present invention. Figure 2 - Front view of a Nitinol arch with the stops placed. Figure 3.- Conventional perspective view of a dentition showing the placement of a Nitinol arch with stops.

With reference to said figures, the "Kit" for the correction of dental malocclusions with prefixed arches of Nitinol is constituted by: i) At least one preformed dental arch of Nitinol of the commonly known (1); ii) at least two perforated silver spherules (2), in which the preformed dental arch (1) is inserted and pressed down until it is fixed in said dental arch (1), so that a wall against the another, to serve as a stop on the Nitinol arch (see figure 2).

In this way we obtain a modified preformed dental arch (1), due to the addition of the stops (2). This is what makes my invention novel, because thanks to this it is possible to avoid the sliding not required to unwanted, making the most of said arc (1).

It is convenient to mention that these stops (2) can be added in arcs of another material, similar to the Niti, that is to say they are elastic and resilient, since in the market we can find the Nitinol arches with different names and of course they should be studied very conscientiously the characteristics, application and strength provided of each of them before using them in our patient.

One of the modalities of the "kit" is that it can also include: A clamp (3) that helps deform the sphere (2), this being fixed in the arch, thus forming said stop, which prevents sliding, however this piece may be optional; I A bottle with astringent solution, which releases fat, saliva and food debris, which could adhere to the preformed arch of Nitinol, during the test period.

The present invention, therefore, also comprises a method of correction of dental malpositions, characterized by the following steps: i) placement of the "brackets" (4) and bands (5) typical of the treatment and in a classical way, according to the technique of choice. ii) Alignment of the teeth, is carried out by means of the wire of choice, depending on the case and at the discretion of the Orthodontist, it could be a preformed arch of Nitinol round number 12 (1), for which first it is necessary to measure in the arch tooth of the patient, to mark or indicate the exact place in said preformed arch (1) where the stops will be located; then the preformed dental arch (1) is treated with an astringent, to release it from food and fat, which could prevent the perfect and constant adherence of the stops; then measure the area that will be free between the preformed dental arch (1) and the "brackets" already attached to the teeth; subsequently the ends of the preformed dental arch (1) are introduced into the tubes of the bands (5) of the molars; then proceed to introduce the preformed dental arch (1) in the "brackets" (4) and are supported by means of some modules (small leagues, not illustrated); and finally, the excess ends of the preformed nitinol dental arch (1) are cut, to prevent them from injuring the tissue of the patient's cheeks.

It is important to point out that we should not exaggerate in the force to be applied to the patient's dental apparatus, so this force should be measured with a Dontrix (apparatus for measuring the force applied in ounces), so I explain later.

With this stage what we do is: vestibularize, expanding our dental arch, to extrude, intrude, uncross a bite, eliminate crowding etc., of course always taking care that the application of the forces on the masticatory apparatus of our patient is adequate, measuring it with the Dontrix, (own device for measuring the forces applied by the orthodontist on the patient's masticatory apparatus).

They should be 2 to 4 ounces (28.5 g is the strength of 1 ounce or 57 g (2 ounces) at 114 g would correspond to 4 ounces, 3.5 ounces = almost 100 g (99.75 g)); with round wire number 12, either for distalar, for vestibulap'zar, to intrude, to extrude, for where you want to move it, is an optimal physiological force, so we will not hurt and avoid problems. But with the heaviest wire if we must take into account this (Biomechanics of Luís Ruiz Martinez, Orthodontics I.O.A.P. Guadalajara, Jal. Mexico).

So according to the descriptive classification of dental movement, according to tone, José Antonio Canut Bruzóla Clinical Orthodontics, Faculty of Medicine, University of Valencia, 1992 Edition, the movement we carry out with this technique is en masse. iii) repositioning of "Brackets" at a balanced level in all the teeth, in a traditionally known way, iv) put rectangular wire 0.016 x 0.022 for pretorque (it can be of Nitinol, which gives us control in the tilt of the crown-root) and convenient links to the case, to prevent the teeth from returning to its initial position, v) torque or termination, for this activity requires a 0.018 x 0.022 rectangular stainless steel wire according to the classic and traditional, that completely fills the "bracket" slot, providing maximum torque control. Leagues in a classic way and according to the case.

The method described above, can have certain variants, which will depend on the case or patient to be treated, to name a few: To correct a cross bite, in step "ii) alignment of the teeth", it is required, in addition to an insert to lift the bite, applying in a traditional manner. This stage is very simple to carry out, because with the help of the cap originated by the spherical (2), we simplify the treatment, saving us possibly a lot of work and steps in it and we get the most out of the preformed arch of Nitinol (1) In cases of acer closing of spaces when there are extractions, in step ii) alignment of teeth, this can be done by distalar or mesialize, as required. Activity that takes place in a traditional way, through the use of an elastic "Alastic" chain, bends in the wire or any other proper attachment for it, with the use of convenient links to the case.

When leveling is not achieved with stage ii), it will be necessary to do a dental leveling of the curve of Spee, to take the teeth to a normal vertical position, inside the alveolus and in relation to the adjacent teeth, which takes I finish it in the traditional way and with the elements that are used in a classical way.

Claims (1)

1. CLAIMS A "Kit" for the correction of dental malocclusions with preformed Nitinol arches, characterized in that it consists of: at least one preformed dental arch of Nitinol of the commonly known; and at least two perforated silver spherules, in which the preformed dental arch is inserted and pressed down until it is fixed in said dental arch. A "Kit" for the correction of dental malocclusions, according to clause 1, characterized in that it includes a clamp that helps to deform the sphere, leaving it fixed in the arch. A "Kit" for the correction of dental malocclusions, according to clause 1 and / or 2, characterized in that it contains a bottle with astringent solution, which releases fat, saliva and food residues, which could adhere to the preformed arch of Nitinol. A modified preformed dental arch for the correction of dental malocclusions, of which comprises a nitinol wire, characterized in that said wire is attached, at a distance, at least two stops formed by the deformation of two spherules. A method for the correction of dental malpositions, which includes the stages of placement of the brackets and bands; alignment of the teeth; repositioning of brackets, pretorque, and tonque or termination, characterized in that in the stage of alignment of the teeth, is carried out by means of the wire of choice, depending on the case and at the discretion of the Orthodontist, it could be a preformed arch of Nitinol round number 12, for which first it is necessary to measure in the patient's dental arc, to mark or indicate the exact place in said preformed arch where the stops will be located; then the preformed dental arch is treated with an astringent, to release it from food and fat, which could prevent the perfect and constant adherence of the stops; then measure the area that will be free between the preformed dental arch and the "brackets" already attached to the teeth; subsequently the ends of the preformed dental arch are introduced into the tubes of the molar bands; then proceed to introduce the preformed dental arch in the "brackets" and are supported by means of modules (small garters); and finally the excess ends of the preformed nitinol dental arch are cut, to prevent them from injuring the tissue of the patient's cheeks. A method for the correction of dental malpositions, according to clause 5, characterized in that in the stage of alignment of the teeth it is required to correct a crossbite, for which an insert is used to lift the bite, applying in a traditional manner. A method for the correction of dental malpositions, according to clause 5, characterized in that in the stage of alignment of the teeth, in some cases it is necessary to make a closure of spaces when there are extractions, which can be carried out by distal or mesialize, according to is required A method for the correction of dental malpositions, according to clause 5, characterized in that when in the alignment stage of the teeth the leveling of the teeth is not achieved, it will be necessary to do a dental leveling of the Spee curve, to bring the teeth to a normal vertical position, inside the alveolus and in relation to the adjacent teeth, which is carried out in the traditional manner and with the elements that are used in a classical manner.