Chemical and structural surface changes at enosseous bioglass-ceramic-implants (Ap 40) were investigated by means of electron microprobe after an implantation period of 4 to 52 weeks. An intimate bonding between regenerated bone and bioglass-ceramic surface was evident at points already after 4 weeks. Initial degradation processes at implant surface came to a standstill after 12th week. A calcium and phosphorus rich layer of great importance for implant stability and biocompatibility was formed immediately contacting the bone. This surface layer had a thickness of nearly 25 micrometers -- 30 micrometers at 12 weeks and remains unchanged up to 52 weeks. The registered calcium and phosphorus impulse rate (cps) is equal to that of neighbouring bone. Chemical similarity of implant surface makes bioglass-ceramic Ap 40 a suitable biomaterial for durable bone replacement.

Animals↗

PubMed1981

A new adhesive technique for microvascular anastomoses: a preliminary report.

A new technique is presented for the anastomosis of microvessels, using only a tissue adhesive (Fibrinkleber, Human-Immuno, produced by Immuno A. G. Vienna) without sutures. The feasibility of this technique is demonstrated experimentally on the femoral artery and vein in rats.

Animals↗

PubMed1981

[Neovascularization of abdominal insular skin flaps in the rat].

Explore the source record for details and available documents.

Animals↗

PubMed1981

[The reaction between bioglass or biovitreous ceramics and rabbit tibia bone (author's transl)].

Explore the source record for details and available documents.

Animals↗

PubMed1981

[Scanning electron microscopic studies of the biocompatibility of carbon glass structures in bone].

Explore the source record for details and available documents.

Animals↗

PubMed1981

[Endoscopy and electromyography in the evaluation of the velopharyngeal function in the cleft patient].

Explore the source record for details and available documents.

Cleft Lip↗

PubMed1981

[Assessment of postoperative clinical and sociopsychological conditions of patients with cleft lip and palate].

Explore the source record for details and available documents.

Cleft Lip↗

PubMed1981

[Treatment of juvenile haemiangiomas (author's transl)].

793 infants and children underwent treatment fort port-wine stains and strawberry naevi. In port-wine stains excision and plastic reconstruction were performed. In strawberry naevi sclerosing was followed by surgery. In rare cases infants and children with giant haemangiomas were treated with glucocorticoids prior to surgery. Radiotherapy of strawberry naevi in the face and neck should be omitted because of the risks involved.

Adolescent↗