Essential oils carry the essence of the plants in such a potent form that a single drop of essential oil can equal multiple teaspoons of the dried herb (for instance, 1 drop of peppermint oil equals more than 25 cups of peppermint tea and oils can be up to 70x more potent than their dried herbal form).
A bachelor's degree in graphic design or a related field, such as art, qualifies you for an entry-level job as a graphic designer. However, applicants can sometimes qualify with a different bachelor's degree plus additional classes in graphic design, according to the Bureau of Labor Statistics.
Becoming a prothodontist requires firt obtaining a D.D.S from an accredited dentistry school. This takes 4 years and most dental schools require at least 90 hours of college course work and they prefer a college degree (4 years). After completing dental school there will be 2-3 years of graduate study in prosthodontics. So it works out to be about 10 years of study.