NZ has first world dental care. The price is from 2013, but straight conversion to USD will approximately offset inflation.
Dentist's salary guideline: https://www.careers.govt.nz/jobs-database/health-and-communi...
[1] http://www.commonwealthfund.org/publications/in-the-literatu...
In New Zealand dental work is almost entirely private, there's no government backup for most people (there's an exception for basic work for those on low income).
On the other hand dental insurance is almost unheard of so clinics can't ask for too much. Last time I had a checkup, 2 xrays and a clean and polish it came to NZ$160 and that wasn't at a cheap practice. Also removal of two upper wisdom teeth was NZ$2500 including sedation.
It's been noted above that NZ doesn't require malpractice insurance due to the presence of ACC so this probably has a material impact on the prices.