the depletion of the ozone layer â la rarefaccion rarefacciÃ³n or destruccion destrucciÃ³n de la capa. de ozono
Traditional metal bracesâAlthough traditional metal braces are the most noticeable type, they are the least expensive orthodontic treatment option. The Consumer Guide for Dentistry estimates that traditional braces can cost anywhere from $3,000 to $7,000, depending on whether or not you have insurance coverage.
The vast majority were children, with 72,300 children under 13 years old and 128,500 children aged 13 to 17 beginning orthodontic treatment to straighten their teeth last year. Braces are usually more successful in children, which is why most orthodontic patients are children. Fewer than 1 in 100 orthodontic patients are adults â just 1,500 adults began orthodontic treatment in England and Wales in 2014-15. But more adults than ever now want treatment, many having missed out when they were children.