Invisalign uses a series of clear overlay templates – called aligners – that have been generated by computer simulation to move the teeth. It eliminates the need for conventional metal braces, which can cause abrasions and discomfort to the lips, cheek, tongue, or gum tissue.

The invisalign are comfortable and convenient, since they can be removed while eating, brushing, or flossing. They also can be easily cleaned to remove food debris and prevent bacteria from building up, which can contribute to bad breath (halitosis). However, patients must remember to put the trays back in their mouth every time they are done with them.

Invisalign: The Clear Path to a Straighter Smile

Despite the fact that invisalign is a very popular treatment, not all orthodontists consider it an appropriate therapy for every patient. Research regarding invisalign effectiveness is limited, and the most recent studies have relatively small sample sizes.

Although a few studies have compared Invisalign to conventional fixed appliances, the results of these randomized clinical trials (RCTs) are contradictory. In some cases, Invisalign is effective for treating mild to moderate malocclusions, particularly in non-extraction cases of permanent dentition. Nevertheless, in other cases, it is not capable of moving the teeth as desired.

Some of these limitations are associated with the trays themselves. The accuracy of invisalign in predicting tooth movements is limited and varies between 50% and 60%. The trays are also less effective in treating bicuspid derotation, bucco-lingual inclination, and overbite control, and they may not be suitable for patients with bridgework or premolars.