The invisalign braces are but another popular type of dental brace that is offered for those who want to divert from the traditional metal braces. This type is made of clear aligners which are virtually invisible when used. These aligners are the ones which work to push the teeth to their proper position through a gentle force. The invisalign braces are often recommended for mild and moderate teeth problems, but there are also some experts who employ it to treat even the most chronic conditions. For those who are considering the invisalign braces for mild and moderate teeth crooking or crowding, expect the braces cost to run in a range similar to that of the traditional braces. For the more severe conditions, the braces cost may involve 20 to 50 percent increase than that of the metal braces.