Liquid nitrogen is very cheap because it is a by-product of the production of liquid oxygen. Nitrogen is obtained from liquid air by distillation at -196Â°C. The gas obtained by this process is actually a mixture of nitrogen and about 1.25% noble (or inert) gases, argon, neon, krypton, and xenon.
Damon braces or any of the self-ligating bracketing systems are pretty standard now in orthodontic offices. It varies greatly by city or region, depending where you live, so anywhere between $4000 and $6000.
The cost of Invisalign can range from Â£1,700 to Â£4,000. The average cost of Invisalign in London is Â£2,000. As with Damon Braces, if your case is difficult, you will be paying more. Having said that, not all people are good candidate for Invisalign has it can only deal with rotation and sideways movement of the teeth.