“Invisible braces” is the term commonly used to describe orthodontic treatment provided by a sequence of clear plastic aligners which are hard to detect on the teeth at normal conversational distance.
Invisalign® is the brand name of one of the companies that make this sort of orthodontic appliance. It consists of a sequence of clear plastic aligners that gradually achieve the desired changes in tooth positions and bite.
Each aligner is designed to perform a small correction of several tooth positions. All the aligners are made at the beginning of treatment, so it is important to follow instructions throughout your treatment to obtain the best result. Clear plastic aligners may not be suitable in all cases, and this will be discussed as part of your treatment planning process.