SU1463248A1 - Method of surgical treatment of the lower prognathia in conjunction with cross bite - Google Patents

Abstract

This invention relates to surgical dentistry. The purpose of the invention is to reduce recurrences. To obtain a good congruence of the displaced fragments -49. The chelate of combs and stable osteosynthesis between the fragments is placed a wedge-shaped demineralized graft on the side of the maximal posterior mandible displacement and the autograft on the opposite side. The chewing muscles proper on the cortical plates are transferred anteriorly and fixed symmetrically on both sides. In order to improve the cosmetic outcome of the operation, the deformation of the chin is eliminated by intraoral access. Anterior movement and symmetric fixation of the masticatory muscles on the cortical plates eliminate their imbalance and prevent recurrence of the disease.

Description

one

The invention relates to medicine, in particular to dental surgery, and can be used in the surgical treatment of lower prognathia in combination with nepeKpecTtfbiM bite and latex.

The purpose of the invention is to reduce recurrence.

The method is carried out in the following manner.

On the side of the maximal displacement of the mandible posterior to the submandibular region, a 5 cm long incision is made that borders the angle of the jaw. Expose the lower edge of the jaw, cut through the periosteum. A circular saw and a height of 1.5 cm are cut out with a circular saw and a fissure boron in the boundaries of the chewing muscle itself. The latter osteoma is separated from the jaw. The skeleton of the jaw branch to its upper third. Intercortical osteotomy of the branch is performed with an oval cut of the outer cortical plate in the area of the angle and horizontal above the mandibular orifice - the inner cortical plate. Using a special osteotome, the cortical plates are severed along the plane.

Similarly, expose the branch of the lower jaw on the opposite side. Form bone and muscle dekortikat. Skeletal jaw branch to mandibular notch. Longitudinal osteotomy of the jaw branch from the base of the condylar process to the corner of the jaw is performed. On the large fragment, the external cortical plate is resected by the amount of the sagittal displacement of the mandible posteriorly, and on the small fragment - the internal one to the base of the mouse muscle process.

A large fragment with teeth is displaced posteriorly and placed in the correct position along the bite with the POMOP1I bipedar tooth-like wire tires with hook-on loops and maxillary elastic stretch.

In this case, due to the rotation of a large fragment around the vertical axis on the side of the greatest mixing of the lower jaw posteriorly, a wedge-shaped defect forms between the fragments with a base in the region of the posterior edge of the jaw branch and on the opposite side (L

O5

with y

four

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1 | The right side - with the top in this form.

j In order to preserve the relationship of the Temporomandibular Elements 9a, to obtain a good congruence of the fragments and strong osteosynthesis, grafts are formed according to the size of the wedge-shaped defects. Moreover, on the side of the plane osteotomy between the fragments, the demineralized transplant will interfere, and in the longitudinal region - an autotransplant from the outer cortical plate. In the latter, decorting is carried out (boron through-hole and stabbing in the staggered order to optimize osteogenesis. The fragments and theplants are fixed by wire spiral seams in the region of the lower phase and in the region of the posterior edge of the jaw bone). in the area of the longitudinal osteotomy, are transferred anteriorly by the magnitude of the sagittal misalignment of the jaws on this side and fixed with a catgut suture. The distance from the midline of the mandible to the anterior edge of this region is measured. kortikata. At the same distance from the midline fixed musculoskeletal dekortikat on the opposite side. The wounds are sutured in layers. In order to improve the operation result of one kosmetiches obviate chin deformation.

0

five

0

five

For this, an incision is made along the threshold of the mouth cavity from 5 to GB. Skeleton chin area. A circular saw and a fissure boron resect its excess by the amount of inconsistency, which is determined on the mask of the face and telegentogram of the patient, if the chin is wide.

The proposed method of surgical treatment of lower prognathia in combination with cross bite allows, by moving anteriorly and symmetrically fixing the masticatory muscles, to eliminate their imbalance and prevent the recurrence of the disease.

Claims (1)

Invention Formula A method of surgical treatment of lower prognathia in combination with cross bite by osteotomy, mixing of fragments and their subsequent fixation, characterized in that, in order to reduce recurrences, between osteotomized bone fragments on one side will prevent demineralized graft, and on the other side - autograft, while the chewing muscles proper on the cortical plates are moved forward and fixed in a symmetrical position, and the chin deformity is eliminated by osteotomy with intraoral stumble.