The British Orthodontic Society reported in that 75% of its members had been fitting more adults with braces, with two-thirds of those adult patients aged between 26 and And while some adults may have them fitted for health reasons, in many cases it’s more to do with the aesthetic appearance of their teeth and smile. What Do Braces For Kids’ Teeth Cost? For many children, braces are a necessity for healthy, Low-cost braces for adults and children are within reach at Kool Smiles. The cost of Damon braces varies significantly depending on factors like age and which kind of braces you choose. Prices for adult private treatment ranges from £1, – £3, Smart Bracket Braces. Smart bracket braces are crammed full of technology as they actually contain a small microchip that regulates how they work.