Many vegetables contain sodium nitrate, a small percentage of which converts to sodium nitrite after you eat it. Sodium nitrite can form nitrosamines, a potential cancer-causing agent, in the intestines. But vegetables also contain antioxidants that prevent the formation of nitrosaomines.
Education and Qualifications. To become a dental hygienist, you'll need either a 2- or 4-year degree in dental hygiene. Most programs are two years long and lead to an associate's degree.They are offered through community colleges and technical colleges.Your coursework will include classes such as the following: 1  Anatomy and Physiology.o become a dental hygienist, you'll need either a 2- or 4-year degree in dental hygiene. Most programs are two years long and lead to an associate's degree. They are offered through community colleges and technical colleges. Your coursework will include classes such as the following: 1  Anatomy and Physiology.
How Long Does it Take to Become a Dental Hygienist. May 22, 2014 by Matthew Johnson. Most people tend to get a bit nervous at the thought of going to the dentist. Even if theyâre not getting any kind of major work done, like surgery or fillings, they know that there will at least be a lot of scraping and discomfort.