2-3yrs
According to answers.com it depends on what country you're in..3-4 years at degree level in dentistry followed by 2-4 years specialising in orthodontics. Orthodontists in Auckland typically take 6+ years
You have to study from 4-8 years
you have to study it for 4 years. even if tou decide to study language practice you can become a lexicogrphy.
about 4 to 6 years
2 years
8
You would have to study at least 4 or 5 years to become a charted accountant.
4
Saint Patrick studied for six years to become a missionary.
The bachelor study takes 3 years, and the Masters takes 1 year
Usually about 5 years.
A quick google search of orthodontists in auckland reveal a handful of the top orthodontists in auckland so at a guess that would be 30-40 with a few dentists/orthodontists