Aligners for teeth before and after
Clear aligners move teeth with custom trays, while results depend on the starting bite, treatment plan, and prescribed wear.
The short answer
Clear aligners gradually move teeth with a sequence of custom trays; before-and-after results depend on the starting bite, treatment plan, and wearing the trays as directed.

What is assessed before clear aligner treatment begins?
Before treatment, a dentist examines the teeth, gums, bite, and X-rays or scans. During treatment, each transparent thermoplastic tray applies controlled pressure, and attachments or enamel reshaping may be used when clinically indicated.
How can a digital scan show your expected aligner result?
An intraoral scan helps create a digital plan showing expected tooth movements. Wear each tray as prescribed, keep it clean, and attend reviews so the clinician can check tracking, tooth movement, and gum health.
When should you seek care for a problem with aligners?
Seek care if a tray cuts the gums, a tooth becomes painful or loose, swelling develops, or the trays no longer fit. A dentist should reassess a stalled or unexpected movement rather than simply advancing to the next tray.
What should you ask about your expected aligner result?
Ask which movements the aligners can predictably achieve, whether attachments or enamel reduction are needed, and what retainer plan will maintain the result after active treatment.
Frequently asked questions
Can this be diagnosed from appearance alone?
No. A dental examination may include focused tests or imaging to identify the cause.
What should I avoid doing at home?
Avoid squeezing, scraping, or applying unprescribed chemicals to the affected teeth or gums.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.
