In 1957, Durex introduced the world's first lubricated condom. Oil should not be used with a female condom made of latex. Contributing factors include a lack of sex education and safe sex practices, including condom use. PDMS is widely used as a condom lubricant. Medtech Products produces a female condom made of latex. Dental dams may also be made by cutting open a latex condom. However, it recommends using a nonoxynol-9 lubricated condom over no condom at all. Different modes of condom failure result in different levels of semen exposure. It is rare to see condom use in pornography. Some men and women find the physical barrier of a condom dulls sensation. Always use a condom (rubber protection). The first rubber condom was produced in 1855. This may be the case with a jammed drug condom. The FC1 female condom was first made from polyurethane. The prevalence of condom use varies greatly between countries.