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Biomedical subjects

S A Geiger

Publications and source records attributed to S A Geiger.

At least 19 recordsLinked to original sources
PubMed1990

[Treatment of neuralgiform maxillofacial pain with hydantoin (Phenhydan)].

Within 4 years a total of 49 patients have been treated for neuralgiform symptoms. 19 patients were symptom-free after 4 to 5 days of monotherapy. Including additional carbamacepine in the treatment of the remaining 30 patients produced successful results in 12 cases. Eight out of the remaining 18 patients showed satisfactory results after psychoactive drugs had been added. It was only in 10 cases that the symptoms could not be eliminated.

Adult↗
PubMed1980

[Long-term behavior of aluminumoxide ceramic implantations in the region of pneumatized cavities in animal experiments].

After bilateral resection of the facial wall of the maxillary sinus of five Göttingen minipigs and coverage of the defect with perforated Al2O3 ceramic material, the initial response to the implant was examined clinically and histomorphologically for periods of up to eight months. Except for a wound infection in the initial stages of healing in the case of one animal, no complications were observed after the operation. Three months after the operation, the implants were fixed in the connective tissue. After the fourth month, newly formed compact bone had developed and stabilized in the region of the attachment. The basically uncovered surface of the implant, which was turned toward the maxillary sinus, was covered with a non-irritating respiratory mucous membrane. No immunologic responses were observed. Bio-inert reaction, stable tissue-bony anchorage, and coverage with functioning mucous membrane justify the insertion of Al2O3 ceramic implants to cover defects in pneumatized cavities.

Aluminum↗
PubMed1979

[Problems of conservative and surgical therapy of juvenile jaw fractures].

Fractures of the mandible in children represent a special problem in the therapeutic concept of traumatology. These injuries differ from similar injuries in adults in terms of the mechanism of the fracture, therapeutic possibilities, elasticity of the bone, healing of the mandibular fracture, presence of tooth buds, and cooperativeness of the patient. Operative procedures should be carried out if necessary, but treatment should basically be as conservative as possible. The primary principle for therapeutic procedures on growing maxillofacial bones is avoidance of late sequelae and restoration of function.

Child↗
PubMed1978

[Problems of bacteriologic diagnosis and aimed antibiotic therapy in pyogenic maxillofacial infections].

Bacteriologic analysis of pathogens from pyogenic infections of the jaw in 71 patients revealed that bacteria normally found in the buccal cavity predominated in 86% of the specimens. Considering the fact that no pathogens could be identified in 7% of the specimens, this then means that pathogens were only found in 7% of the specimens. Six to 12 strains were usually isolated in the mixed bacteria population of the buccal cavity. A total of 430 strains of bacteria were cultured and tested for their response to 20 common antibiotic preparations. We were able to confirm the high effectiveness of penicillin and/or broad spectrum penicillin 92% of the cases (8600 determinations of resistance). Tetracycline was effective in 89% of the cases; trimethoprim sulfamethoxazole, in 83%. The effectiveness of newer, more expensive, antibiotic preparations was not significantly better than that of pencillin. Administration of such antibiotic preparations therefore should be limited to problematic pathogens.

Anti-Bacterial Agents↗
PubMed1977

[Animal experimental studies on the healing around ceramic implantation in bone lesions in the maxillary sinus region].

Clinical and histological tests were made in five minipigs to study the hitherto unknown tissue behaviour of the receiver organism to unilaterally uncovered perforated ceramic implants in the bilaterally osteotomized facial maxillary sinus wall. The implants were covered with connective tissue and coated with respiratory mucosa on the uncovered side. After 11 weeks, they had all healed without irritation, and were solidly anchored in the surrounding tissue by the connective tissue which had grown into the perforations.

Acrylates↗
PubMed1976

[Transoral osteosynthesis in mandibular fractures].

The extraoral approach is frequently used for repositioning and stabilizing fractures of the mandible in which osteosynthesis is indicated, but also the transoral approach may be applied. Depending on the location of the fracture, the technical difficulties vary in operations using the oral access. By means of suitable instruments and appropriate operating techniques, which are described for the various fracture types of the lower jaw, almost all fractures of the mandible can be operated upon using the oral approach. The essential advantages of such a procedure are that the facial nerve cannot be damaged and an esthetically unfavourable external scar is avoided.

Humans↗
PubMed1976

[Whole-skin transplantation in periodontal surgery].

Open vestibuloplasty in combination with mucogingival surgery has the disadvantage of a high tendency to relapse. The introduction of the gingival graft on to the open periosteum was a considerable improvement. The use of compound flaps taken from the hairless retroauricular region also showed good post-operative results. In addition to good healing and little tendency to shrink, there is the advantage of an ample supply of tissue.

Gingiva↗