Invisalign moves teeth through a planned series of clear aligners, but successful treatment involves much more than changing trays. Diagnosis, attachments, monitoring and refinements turn a digital simulation into a clinical result.
From digital scan to treatment plan
Treatment begins with an orthodontic examination and digital records. A scan creates a three-dimensional model, but the software does not diagnose the bite. Your orthodontist decides which teeth should move, in what order and how the upper and lower teeth should fit at the end. Learn more about OSSTL’s Invisalign treatment in St. Louis.
The planned movement is divided across a series of aligners. Each set is shaped slightly differently and applies controlled pressure to selected teeth. Patients change aligners according to the schedule provided rather than advancing whenever they choose.
What are Invisalign attachments?
Attachments are small shapes of tooth-colored material bonded to selected teeth. They give the aligner a surface to grip so it can rotate, tip or move a tooth more predictably. Their shape and position are chosen for the movement required.
Attachments are common and do not mean a case is unusually severe. They are less noticeable than metal brackets but may still be visible at close range. They are removed after active treatment without intentionally removing healthy tooth structure.
Wear time, tracking and progress checks
Most patients are directed to wear aligners about 20 to 22 hours per day, removing them for food, drinks other than water and oral hygiene. If wear is inconsistent, teeth may fall behind the planned sequence and a new aligner may not seat correctly.
At progress appointments, the orthodontist checks fit, tooth movement and bite correction. These visits can identify a tracking problem before it compounds across several aligners. Elastics may be added when upper-to-lower bite correction requires additional force.
Why refinement aligners are sometimes needed
Teeth are biological structures, and they do not always move exactly as a computer animation predicts. A refinement is a new scan and additional series of aligners designed around the progress already achieved. Refinements should be considered when comparing Invisalign treatment costs.
Refinements are common in comprehensive treatment and are not automatically evidence that something went wrong. They allow the orthodontist to improve fit, finish bite details and pursue the planned result rather than accepting an incomplete correction. Retainers are then used to protect the final positions. Patients deciding between appliances can also review Invisalign versus braces.
Frequently asked questions
How often do Invisalign aligners change?+
Many patients change aligners every one to two weeks, but you should follow the schedule prescribed for your plan.
Can I remove attachments myself?+
No. Attachments should be placed and removed by the clinical team.
What happens if an aligner stops fitting?+
Contact the office. You may be advised to wear the current aligner longer, return to a previous set or receive a new scan.