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Biomedical subjects

W Schilli

Publications and source records attributed to W Schilli.

At least 55 records · Page 3Linked to original sources
PubMed1984

Position of anterior teeth following surgical correction of prognathism.

20 patients who had all undergone surgical correction of progenia by sagittal split operation in the ascending ramus were chosen for a follow-up investigation 5 years after the operation. The patients could be divided into two groups showing either horizontal or vertical facial growth pattern. A cephalometric analysis was made of all the patients and the results of both groups were compared with one another. In particular the changes in the position of the anterior teeth and the amount of sagittal and vertical relapse were noted. It was noticed, that the type of measurable postoperative relapse was different in the two groups. Postoperative mandibular relapse is partially compensated by the position of the anterior teeth. Therefore the postoperative changes in the position of the anterior teeth are different in the two groups.

Cephalometry↗
PubMed1983

The stabilization of midface-fractures in the vertical dimension.

A frontal or zygomatic-bone wire-suspension is often insufficient to retain and stabilize the upper jaw after fractures of the Le Fort II or III type. Caudal and dorsal displacement of the maxilla can only be avoided by the use of intermaxillary immobilization in good occlusion. The use of a maxillary stabilizer makes long-term intermaxillary immobilization unnecessary. The displacement of the maxilla, which can often be observed during splinting and fixation with wire-suspension following midface fractures, can be avoided by the use of stable steel rods.

Adult↗
PubMed1982

Interstitial radiotherapy with 198Au seeds in the primary management of carcinoma of the oral tongue: results in Freiburg/Breisgau from January 1964 to July 1980.

Thirty-two patients with histologically proven carcinoma of the oral tongue, Stage T1-3, were analyzed retrospectively. They were treated from January 1964 through July 1980 in Freiburg by interstitial implantation with Au-198-seeds for the primary tumor management. Out of 25 patients with complete follow-up, one patient developed a local recurrence. In three patients, regional lymph node metastases occurred, once after prior adjuvant radiotherapy to the regional lymph nodes area, and in two patients after exclusive interstitial radiotherapy to the tumor of the tongue. The overall five-year survival rate was 52% for all stages (overall group), 75% for Stage T1 and 44% for Stages T2-3. The corrected five-year survival rate was 75% for all stages, 86% for Stage T1 and 71% for Stages T2-3. The method of 198Au-seed implantation as it is practiced in Freiburg is discussed, as well as the radiation exposure of the personnel.

Adult↗
PubMed1982

Facial deformities and their treatment.

Even minor facial deformities impose a burden on the personality: the face is vital for its identification of the individual. Defects in facial form cannot be concealed. The origins of most deformities lie in the bony skeleton. They may be either congenital or acquired. In the congenital deformities, form, size and function are disturbed during the course of development, whereas in the acquired deformities parts of the face are lost by surgery or trauma. Occlusion is always affected in deformities of the central and lower thirds of the face. Conversely, massive disturbances of occlusion have repercussions on facial form. Congenital deformities should be corrected early if function is also disturbed, but additional correction is often necessary after growth is complete. If only the proportions of the bony skeleton of the face are affected, the deformity is corrected after the termination of growth. Reconstruction of normal occlusion is essential in the correction of facial deformities. Tissue missing as a result of surgery or trauma is replaced by grafts. Disturbances of development caused by local disease (neoplasia or osteomyelitis) affecting the face constitute an intermediate form of deformity. These defects should receive only functional correction during growth, final reconstruction not being undertaken until it is complete.

Adolescent↗
PubMed1981

Bone fixation with screws and plates in the maxillo-facial region.

The treatment of fractures and osteotomies of the mandible and the midface show very different problems. The mandible must be treated in a stable and the midface in a static way. Due to the different bio-mechanics and topography of these bony structures, the advantages and disadvantages of treating a fracture in the maxillo-facial-region by the means of osteosynthesis will be discussed.

Bone Plates↗
PubMed1980

The influence of prognathism surgery on the width and the length of the lower third of the face.

The width and the length of the face in frontal view as important factors in facial harmony are analysed. Two groups of patients with mandibular prognathism were photographed, analysed and evaluated. The lower third of the face generally becomes shorter after a sagittal splitting operation as well as after a sagittal splitting plus additional medial ostectomy of the lower incisor region. In both groups we did not find a significant change in the width of the face. The impression of broadening the face by the sagittal splitting method is therefore subjective. In both groups, the face became more harmonious indimension following the osteotomies.

Cephalometry↗
PubMed1980

[Traction screw osteosynthesis in the treatment of fracture of the angle of mandible (author's transl)].

The application of traction strapping with a single cortical screw in the form of lag screw osteosynthesis has been suggested for the treatment of angular factures of the mandible. This is also possible in those cases where there are other mandibular fractures, whether the molar teeth are present or not. The original occlusion is thereby easily reconstructed. The rehabilitation of the patient is generally possible 8 days postoperatively when the intra-oral stitches are removed.

Bone Screws↗