[New method of diminishing cyst cavities].

For diminishing the cyst cavity after cystectomia the following method is being suggested: The cyst sack is removed as usual after forming a trapezium-like muco-periostyle soft flat tissue by means of a vestibular bone opening. Foremost and furthest to the opening other openings are bored into the bone. Then "U" like stitches are being made through them and the edges of the muco-periostyle flat tissue, their loose ends being tied over a tampon. The tampon presses over the muco-periostyle tissue at the place of the bone defect thus diminishing it.