[Comparison of intra-uterine devices, Copper-T-200 and Dana-Super-Fix-Cuprum (author's transl)]. 
The two above IUDs were compared by application to 411 patients, with the Copper-T 200 being used on 239 and the Dana-Super-Fix-Cuprum on 172.  Gravidity occurred to 2.9 or 5.8 per cent of all probands.  The Pearl indices were 2.6 or 4.2.  Spontaneous expulsion was observed in 2.5 or 3.5 per cent of all cases.  Devices had to be extracted from 9.6 or 11.6 per cent of the patients.  Adnexitis was diagnosed in 0.4 or 1.7 per cent of the cases.  Continuity values were 85.0 per cent for the Copper-T-200 and 79.1 per cent for the Dana-Super-Fix-Cuprum.  No substantial difference in effectiveness was found to exist between the two above copper-based intra-uterine devices.