RU30076U1 - DEVICE FOR TREATING FRONT JAIN OF THE Upper Jaw - Google Patents

Description

DEVICE FOR TREATING A FRONT JOINT

TOP JAW

The utility model relates to medicine, namely to orthodontics, and can be used to treat maxillofacial anomalies with frontal narrowing of the upper jaw.

Various orthodontic appliances are known for the treatment of narrowing of the upper jaw. With the expansion of the jaw there is a change in the shape and size of the dentition 1, 2, 3, 6.

It is known to use an orthodontic plate with incisal dilators in the treatment of narrowing of the upper jaw, which is taken as prototype 5. The disadvantage of this plate is that the expansion of the upper jaw occurs slowly due to the need to expand the entire jaw, including the region of the maxillary tubercles and buttresses in the molars.

The technical result when using the utility model is the reduction of treatment time due to the rapid expansion of the frontal section of the upper jaw, the most malleable part of it, improving the functional and aesthetic results, and preventing complications.

The specified technical result is achieved by imposing an orthodontic apparatus, which additionally contains a stopper in the distal section.

In FIG. 1 shows the proposed device for expanding the frontal section of the upper jaw, in FIG. 2 - model of the jaw of the patient before treatment, in FIG. 3 is a photograph of the oral cavity during treatment; FIG. 4 - model of the jaw after treatment.

The device proposed for use is a base plate made of acrylic plastic, with hooks 1 (clasps) made of flattened wire or a metal strip.

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0.5 mm thick and 2 mm wide, inserted between the central incisors facing distally, with a screw 2 and a cut 3 along the sagittal, the device contains a stopper 4 in the distal section. The principle of operation of this device is to transversally expand the frontal section of the upper jaw and artificially create diastema to the desired size, taking into account the lack of space. As the necessary expansion of the upper jaw is achieved, the apparatus is reconstructed. Cutter expanders are cut off, arm-shaped springs are mounted on central incisors for their medial movement and other mechanical elements to correct the position of the teeth and bite as necessary. The duration of the period of active expansion of the upper jaw averaged 1.5 months (from 2 weeks to 2 months). The different duration of expansion depended on the required level of expansion of the upper jaw in the treatment of a certain anomaly and the size of the place deficiency, individual structural features of the jaws and occlusion, the patient's age, and the patient's discipline when using a removable device. The volume of the necessary expansion of the jaw depends on the degree of narrowing of the upper jaw, on the lack of space and the transversal mismatch of both dentitions.

The proposed device is used as follows: stage 1 - impose an apparatus containing 1st cutter expanders in the form of clasps 1, expanding screw 2 and stopper 4 in the distal section. A week after the application of the apparatus, the activation of the screw on Ul. turnover every other day. The average expansion time ranged from 2 weeks to 2 months depending on the degree of narrowing of the arch and the lack of space for individual teeth 4. The first stage of expansion of the upper dental arch ends with the formation of an artificial diastema from 4 to 10 mm, depending on the deficit places and degree of narrowing due to the stopper installed in the distal section of the removable device.

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Stage 2 - cutter expanders are cut off and the apparatus is reconstructed to close the artificial diastema and correct the abnormal position of the teeth. This creates the necessary space for closely spaced upper jaw teeth. The timing of further treatment depends on the severity and complexity of the dentofacial anomaly.

CLINICAL RESULT

The device with a cutting expander was used in 25 patients with frontal narrowing of the upper jaw.

As an example, we give an extract from the medical history of patient L., 12 years old, who turned to the Department of Orthopedic Dentistry of the Belarusian State Medical University with complaints about the incorrect position of the front teeth of the upper jaw and an ugly smile. Clinical examination of the oral cavity revealed a mesial shift of the dentition in the lateral region on the right (Engle class III) and on the left Engle class I. Narrowing of the upper dentition in the lateral sections (in the premolar region - 4.5 mm, in the molar region - 1.5 mm), flattening of the anterior part of the upper jaw (shortening of the frontal part of the upper jaw - 5 mm). Reverse incisal overlap with sagittal fissure - 2 mm. Close position of the front teeth on the upper jaw with a lack of space in the dentition for a canine on the upper jaw on the left. Short bridle and low position of the tongue, infantile type of swallowing (Fig. 3).

The treatment plan included the expansion of the upper jaw with an apparatus with an 8 mm extender, stage II - creating a place by lengthening the dental arch of the upper jaw for proper eruption of the canine, stage III - retention and normalization of occlusion. With the help of a tool expander, a significant expansion of the frontal section of the upper jaw was achieved (Fig. 4). A direct ratio of the front teeth was achieved, a place for the canine was created and occlusion was normalized. Good occlusal and aesthetic results were achieved (Fig. 5).

,USED BOOKS

1.Dmitrenko S.V., Mvanov L.P., Nikitina S.N. Orthodontic apparatus for the expansion of the upper jaw with simultaneous protrusion of the anterior teeth. / Volgograd honey. Academy deposit date 02/20/98 Volgograd. -1998. -FROM. 5.

2.Dubivko S.A. Clinic and treatment of deformities of dental arches: Abstract. ... cand. honey. sciences. Kazan, 1963. -27 p.

3. Koyev Zh. Expansion of the upper jaw due to the opening of the palatine suture using the Aipsverti apparatus. / F. Koyev // Dentistry - 1960.-№ Z.S. 56.

4.Laganovsky A.Ya. Morphology of the middle palatine suture and its significance in the expansion of the upper jaw: Abstract. ... cand. honey. sciences. Riga, 1967.28 p.

5.Napadov M.A. Atlas on orthodontic technique. -M., 1970. -56 p.

6. Guide to Orthodontics / Edited by prof. F.Ya. Khoroshilkina. -2nd ed., Revised. add. -M .: Medicine, 1999. -800 p.

Claims (1)

A device for treating frontal narrowing of the upper jaw, containing an expanding screw with a cut along the sagittal, cutter expanders in the form of clasps, characterized in that it is equipped with a stopper in the distal section.