Rigid endosseous implant utilized as anchorage to protract molars and close an atrophic extraction site.

A two-stage endosseous implant, placed in the retromolar area of the mandible was utilized as rigid anchorage to translate two molars 10-12 millimeters mesially into an atrophic endentulous ridge. Despite substantial anchorage demand over a three year period, the endosseous implant remained rigid ("osseointegrated"). At the end of treatment the implant and adjacent, intravitally labeled bone were recovered.

[Reconstruction of the branches of the trigeminal nerve using microsurgery methods].

The cause and pathomechanism of injuries of the n. trigeminus branches are described. The diagnostics and prognostics of the injuries are discussed in detail and a system of classification employed by the author is disclosed.

Microsurgical correction of the injured inferior alveolar nerve.

The pathology of inferior alveolar nerve injuries is discussed and the general and special guidelines for microsurgical reconstructive procedures are presented. Twenty-three cases are summarized: 22 cases showed marked restoration of nerve function after surgery.

Osseous adaptation to continuous loading of rigid endosseous implants.

Titanium implants, with an acid-etched surface, were screwed into holes 3 mm in diameter, about 1 cm apart, carefully prepared with an internally irrigated, surgical bur in the femurs of 3- to 6-month-old rabbits. During the first 3 days after surgery, fluorescent bone labels revealed extensive bone formation, particularly at the endosteal margin of the surgical defect, indicating preservation of a high degree of osteogenic capacity. A lattice of coarse, woven bone began encapsulating the implant within 3 days.

Microsurgical reconstruction of the lingual nerve.

The surgical anatomy and common causes of lingual nerve damage are reviewed. Surgical indications for decompression, neurorrhaphy, and nerve grafting are discussed based on the review of 18 cases.

Circadian rhythm of mechanically mediated differentiation of osteoblasts.

Rats entrained to alternating 12 h light/dark periods were sacrificed at hourly intervals over one complete circadian cycle. Each animal was injected with 3H-Thymidine 1 h before death. Autoradiographs of serial sections of maxillary first molar periodontal ligament (PDL) were prepared.

Microsurgical reconstruction of the infraorbital nerves.

The pathogenesis of damage to and the microsurgical anatomy of the infraorbital nerve are reviewed. Indications for surgery and a microsurgical technique for decompression and scar removal or anastomosis of the nerve are presented. Results from seven surgical cases indicate a high degree of successful regeneration, with complete return of sensation occurring in six cases.

Nuclear size as a cell-kinetic marker for osteoblast differentiation.

A nuclear morphometric assay for preosteoblasts is introduced as a cell-kinetic technique, applicable to routine histological preparations of mineralized tissue. Because this method is a morphological marker for osteoblast precursor cell differentiation, it provides a new dimension for determining the mechanism of osteoblast histogenesis. Osteoblast precursors of the periodontal ligament are a mixed population of progenitors, kinetically separable into two distinct groups according to nuclear size.

A critical study on the preparation and application of gelatin-resorcinol tissue adhesive crosslinked by formaldehyde.

A tissue adhesive composed of gelatin-resorcinol-formaldehyde was prepared. The factors, influencing its properties were discussed and compared with other preparation methods. Incised rat skin wounds were unified with adhesive applied between the wound edges or on the wound surface.

Experiences about the application of gelatin-resorcinol-formaldehyde tissue adhesive in experimental ruptured liver injury.

Ruptured liver injury was produced in dogs. For arresting the bleeding and for the tissue unifying GRF adhesive was used instead of the traditional wound treatment. The experiences obtained during the wound healing were positive.

[Fixation of laterofacial fractures by means of ballon-tampon (author's transl)].

Author performed measurements to assess the efficiency of ballon-tampons used for fixation of laterofacial fractures. According to these measurements the necessary amount of fluid (15--35 cm3) assure a pressure of 240 mercurymm and this is not diminished after 10 days beyond a level of 170 mercurymm. These values are adaequat both for the reduction and retention.