[Filling repair and repair fillings].

The possibility of repair of restorations have been regarded for long time as "patchwork dentistry" in standard textbook literature and university education. The current knowledge of the biohazards of dental restorations do not allow an unreflected attitude towards repair techniques. Since there is a lack of investigations on the indication and longevity of repair restorations this technique remains empiric in character. The survey discusses the indication of repair and re-restoration.