There are a few things to know before getting invisible aligners, most importantly the duration of treatment, the number of aligners, how long each aligner must be worn, and the recommended daily hygiene habits. • Number of Aligners — The number of aligners is dependent upon a few things, including the overall duration of treatment, the rate at which the teeth move into their optimal positions, and the severity of malocclusions being corrected. In most cases, a set of aligners is worn for a few weeks, until the teeth have settled into their new positions; after the teeth move, a new set of aligners is worn that works to improve upon the previous repositioning. • Oral Hygiene — One of the main benefits of clear aligners versus traditional braces is that the patient is better able to maintain oral hygiene and perform a more thorough cleaning. Unlike the bulky brackets used in traditional braces, the retainers can be completely removed, allowing the patient to continue all hygiene habits as normal. • Duration of Treatment — Each patient's expected length of treatment is different, varying greatly by the severity of the malocclusions, overall oral health, and the type of orthodontic treatment that is necessary. Some patients may see results as soon as six months while others may take as long as two years to see the full benefit. For example, adjusting an entire bite will take more time than correcting minimal crowding. The patient can help reduce the need to extend treatment by wearing the aligners as recommended; any lapse in wearing retainers can lead to extended treatment time.