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[Intrauterine contraceptive devices. Study of the Dalkon shield by scanning electron microscopy].


 Although the Dalkon shield has been one of the most popular IUDs in past years, manufacturing standards followed in its production were very poor. Its insertion was rather dangerous and the uterine perforation rate was quite high. The authors examined it by scanning an electron microscope before and after insertion. It is concluded that, if the shape of the IUD is incorrect and its quality poor, it can cause serious irritation of the endometrium and there is indeed a high risk of perforation of the uterus. Therefore, its withdrawal from the market was a correct measure.
