…… the comparative studies indicate:
expulsion: MlCu375SL>LTCu >Uterine shape IUD>γ IUD>TCu380A >Yuangong IUD
pregnancy with IUD in-situ: LTCu>TCu380A>Uterine shape IUD > MlCu375SL >γ IUD >Yuangong IUD
removal by medical reasons: MlCu375SL>TCu380A>Uterine shape IUD > Yuangong IUD > LTCu >γ IUD
rate of failing: MlCu375SL>LTCu >Uterine shape IUD>TCu 380A>γ IUD
The results indicate : the most suitable IUDs are medicated Yuangong IUD and medicated γ IUD. The structure is coincided with the shape of the uterine cavity.
Director of Commity: vice derector: