Malocclusion in most people is diagnosed in infancy. From the same age, measures are being taken to address this or that problem. Activator Andresen-Gojpla is designed to correct the replacement and permanent bite.
The activator is a removable device, through which the bite is restored. It consists of two main elements, which are fixed on the lower and upper jaws and create one acting block.
The Andresen-Goio device is created for each patient, taking into account the individual features of the structure of his oral cavity. The apparatus is installed from the second period of the formation of the bite of the milk teeth. It is recommended for correcting various types of disorders, including cross and mixed occlusions.
It is possible to achieve a positive result by changing the mutual position of the elements of the activator and mandibular structure.
Contents
- Description of the design
- Principle of operation
- Manufacturing process
- Therapeutic period
Description of the design
The orthodontic apparatus of Andresen Goipley consists of two bases, each of which is connected by means of a Coffin spring. The latter is made of wire with a diameter of 1.2-1.5 mm. 
On the upper part of the activator there are two wings, which, after installation in the oral cavity, adjoin the sky and the lingual surface.
To ensure that the design is tightly held on the teeth, appropriate cavities are created during its manufacture. These recesses repeat the shape of these surfaces.
The upper plate is supplemented by an arc of wire with a diameter of 0.6-0.8 mm. Features of its design consist in the fact that it touches the sharp edge only the area of the neck of the teeth. In addition, the lower part of the activator is supplemented by depressions. They affect the cutting surfaces of the dentition. As a result, there is a separation between the chewing parts of the bite by 2 mm.
Principle of operation of the
The principle of the design is determined based on the type of specific bite disturbance. If there are appropriate indications, the activator restores bite in the following ways:
- The lower jaw extends a certain distance and is fixed in the specified position. Further, the device has a stimulating effect, provoking its growth. Particular attention is paid to the mandibular heads.
- The design is fixed in a position that prevents further growth of the maxillary series.
- The functions of muscle fibers responsible for chewing are restored.
- By means of a screw and other structural elements, the position of the tooth row changes immediately in several directions perpendicular to each other.
Manufacturing process
Initially, the doctor applies plaster material to both jaws to obtain their impression. After this, the boundary is drawn along the finished model, along which the basis of the apparatus will pass. If there are appropriate indications on the diagram, there are places for additional details such as levers, springs and so on.
Also on the created model trajectories are marked on which the sawing will pass. When manufacturing the activator, the doctor takes into account the following conditions:
- its anterior border runs along the cutting surfaces of the maxillary teeth;
- the rear boundary of the model lies along the line of connection of the lateral parts of the teeth.
The template is complemented by bite rollers. Its lower part should reach the sublingual area. The pattern also covers the cutting edge of the anterior and chewing surfaces of the posterior teeth. In this case, wax from the vestibular side occupies up to 30% of their coronary part.
To manufacture the activator, orthodontic wire is used, the diameter of which is determined by the location of its installation:
- Coffin spring - 1,2-1,5 mm;
- the basic details of a design - 0,6-0,8 mm;
- external - 0,8-0,9 mm;
- internal - 0,6-0,7 mm.
After performing these actions, the doctor determines occlusal tangents in the patient's mouth. To do this, it changes the position of the mandibular series. The lower jaw is fixed at the moment when a neutral ratio of the permanent teeth is achieved at the place where their side surfaces adhere.
Next, the model compresses the surface of the sky and closes the teeth with a heated wax plate. After this, the stage of fixing elements installation in the created device comes.
The expansion spring and other components that will be installed in the activator are preheated on an alcohol burner and then incorporated into a wax plate. The part of the latter is cut out for the spring to come out.
The space between the occlusal surfaces is filled with wax. Next, the bite rollers are installed and then combined with the upper model. In the lower plate, the gypsum is cut before the alveolar process begins. The doctor models the structure, adjusting it to the features of the structure of both jaws. In the sublingual region, the wax preform thickens.
At the final stage, a gypsum model is formed. Depending on the indication, double cuvettes are used or only one of them, with which an additional ring is installed. Subsequently, instead of wax, the model is filled with plastic.
The manufactured activator of Andresen Goipel is polished and ground. Both bases are sawed along the line indicated at the very beginning of the device creation process. At the end of the work the doctor checks how all the elements of the structure function.
The medical period
It was noted above that the treatment regimen is determined by characteristic disorders. When correcting the distal occlusion, characterized by a narrowing of the jaw line, the vestibular arch is set on the front upper teeth. The Coffin spring is attached to the middle part of the palatine seam.
With mesial bite, the wearing of the activator with the expansion screw is shown. The vestibular arc lies along the mandibular frontal teeth. To eliminate the violations associated with the arrangement of canines of the upper row, the bends that are related to this arc are located on the medial edges. Further, these elements are tightened to create an additional voltage.
The duration of treatment through the activator depends on the individual characteristics of the patient. On average, the restoration of the occlusion takes about 1.5 years. In a number of cases, treatment is completed a few months after the device is installed.
The design makes communication difficult, which is why it is usually used at night.
From a review of our reader, who was treated by activator Andresen Gojpl.
Alexey, 17
Treatment by means of Andresen-Goipel apparatus in Moscow costs not less than 17 thousand rubles.