Aim:The aim of this study was to investigate clinical experiences with stabilised autologous venous blood coagulum after SCHULTE, over a 10-year period. Material and Method:During the period from 01.01.1990 to 31.12. 2000, 175 in-patients had a cystectomy with the defect filled in with SCHULTE coagulum. The extent of each cyst was measured on the orthopantomogram and calibrated using a test specimen X-ray. Post-operative rates of infection and nerve function disturbances were analysed retrospectively. Results:53.1% of the cysts were follicular and 20.6% were radicular. Residual cysts appeared with a frequency of 19.4%, other osseous lesions at 6.9%. The average diameter of the treated cystic lesion was 25 mm (max. 65mm). There was serious post-operative infection in only 5 cases, and mild post-operative infection in 11 cases. No patients had nerve function disturbances and pathological fractures were not noticed. In 159 cases real reossifications were observed under X-ray at the one year check up. The SCHULTE stabilised autologous venous blood coagulum method for covering bone defects in the mouth is low in risks, easy to implement and, not least, reasonably priced. It could, therefore, also be used for pre-implanting measures. Schlagwörter: intraoral bone defect, defect reconstruction, SCHULTE-Koagulum