Search

This paper reports on surgical therapy of ozena. Hydroxylapatite was implanted under the mucosa of the nasal septum and the floor of the nasal cavity in four patients with ozena. In five patients the nostrils were totally closed by the method of Young. After a period of 2 to 5 years, the clinical results in both groups enable us to recommend both surgical procedures.

Tricalcium phosphate (TCP) with and without heterologous fibrin glue has been used for obliteration of the mastoid cavity in middle ear surgery. The use of TCP with a homologous fibrin glue has not been described so far. Obliteration of 22 epitympanic and 51 femoral defects in rabbits by means of TCP-granulates without and with homologous fibrin glue was performed in 18 animals. Follow-up was for 2 weeks to 6 months. Histological osteo-integration was studied microscopically. Fibrin glue induces the development of soft tissue impeding osseous integration of the calcium phosphate for at least 6 weeks.

Keratocysts are a special entity of jaw cysts. The horizontal and distal regions of the mandible and the ascending ramus of the mandible are the most common locations of these cysts. Keratocysts of the os zygomaticum and orbital floor are extremely rare. In case of infection radiologic and histologic diagnosis are difficult and these cysts are often misdiagnosed as radicular and follicular cysts. The case of a 49-year old man is reported, who was admitted to hospital suffering from recurrent episodes of maxillary sinusitis with orbital involvement. He had previous sinus surgery six times. The clinical, histologic and radiologic characteristics are reported. In a literature review the present case is discussed. Because the recurrent-rate of keratocysts is rather high, complete removal and careful post-operative follow-up are mandatory.