Invisalign is not a single product. It is a family of clear aligner treatments, and which one suits you depends on how far your teeth need to move, how long you are prepared to wear them, and whether the patient is an adult, a teenager, or a child who still has baby teeth. This guide covers all of them, plus how the treatment actually works, how long it takes, and what it can and cannot fix. From Icon Dental Center in Everett, WA, where orthodontic treatment is provided by Dr. Sohrabi, a board-certified orthodontist working in the same practice as your general dentist.
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Which Type of Invisalign Do You Need?
Minor crowding of the front teeth or a small relapse after old braces is handled by the shortest treatments. Mild crowding or spacing that leaves the bite alone sits in the middle. A full bite correction needs the comprehensive version, and children and teenagers have their own versions built around teeth that are still developing.
The number of aligners is what separates them. A short treatment gives you a fixed, small number of trays, which limits how far any tooth can travel. The comprehensive treatment has no such cap, which is why it handles the harder cases and why it runs longer.
Only an orthodontist looking at your teeth, your bite and your x-rays can say which one applies to you. What follows is what each treatment is built to do.
Not sure which type of Invisalign your case would need? Call us and tell us what you want to change, and we will tell you what an assessment involves.
The Types of Invisalign Treatment
The Invisalign system includes six treatment types. They differ in how many aligners are supplied, how far the teeth can be moved, and how long the course runs.
Invisalign Express
The shortest treatment in the range, typically up to seven sets of aligners over roughly three months. It is built for very small movements: slight crowding of the front teeth, a narrow gap, or a relapse after previous orthodontic work where the teeth have drifted back a little. It does not change the bite.
Invisalign Lite
Usually up to fourteen sets of aligners over about six months. It suits mild crowding or spacing across the front teeth where the back teeth and the bite itself do not need to change. More room to move than Express, still a limited course.
Invisalign Full, also called Comprehensive
The unlimited-aligner version, and the one most adult cases use. Twelve to eighteen months is typical, longer for difficult cases. Because the number of trays is not capped, it can address crowding, spacing and bite problems together, including overbite, underbite, crossbite and open bite.
Invisalign First
Designed for children roughly six to ten years old who still have a mix of baby and adult teeth. It is used to widen a narrow arch and create space for adult teeth that have not come through yet, which can reduce how much treatment is needed later.
Invisalign Teen
Comprehensive treatment adapted for teenagers. It includes eruption tabs that hold space for teeth still coming through, and blue compliance indicators on the trays that fade with wear so a parent or clinician can see whether the aligners are actually being worn.
Invisalign Go
A shorter treatment designed to be delivered by general dentists rather than orthodontists. It covers the front ten teeth on each arch and runs to a limited number of aligners, so it is aimed at straightforward cosmetic alignment rather than bite correction.
Everett, WA
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An assessment is the only way to know which treatment fits your case. We will tell you honestly if Invisalign is not the right option for you.
How Does Invisalign Work?
Invisalign moves teeth with a series of clear plastic trays, each shaped slightly differently from the last, worn 20 to 22 hours a day and changed roughly every one to two weeks.
Treatment starts with a digital scan or impressions of your teeth, which are used to build a three-dimensional model. The movement is planned on that model from the starting position to the finishing position, then broken into small steps. Each tray represents one step and applies gentle pressure to a few teeth at a time.
The trays are manufactured as a set before treatment begins. You wear each one for its allotted time, take it out to eat, drink anything other than water, brush and floss, and put it straight back in. Progress is reviewed every six to ten weeks, and the plan can be adjusted if the teeth are not tracking as expected.
How Long Does Invisalign Take?
Most comprehensive Invisalign treatment takes 12 to 18 months, and the shorter treatment types finish in three to six.
The number that matters more than the calendar is wear time. At 20 to 22 hours a day the schedule holds. At 14 or 15 hours a day the teeth fall behind the plan, trays stop seating properly, and the treatment stretches out or needs re-planning.
The stages are consistent whichever type you have: assessment and scan, then a wait of a few weeks while the aligners are made, then the fitting appointment where any attachments are bonded on, then the wear period with check-ups along the way, then retention. Retention is not optional. Teeth drift back toward their old positions if nothing holds them, which is why a retainer follows every course of treatment.
What Invisalign Can and Cannot Fix
Invisalign can correct crowding, gaps, overbite, underbite, crossbite and open bite in most mild to moderate cases, and it does so without fixed brackets or wires.
What it handles less well is worth knowing before you commit. Large vertical movements, where a tooth has to be pulled down or pushed up a long way, are difficult for aligners. So is rotating a round tooth such as a canine or premolar past a certain point, because there is little for the tray to grip. Cases that need adult teeth removed to create space, or that involve a skeletal difference between the upper and lower jaw rather than a tooth position problem, may need fixed braces, jaw surgery, or a combination.
This is the part that cannot be settled from an article. An assessment with a board-certified orthodontist is what separates a case that aligners will finish cleanly from one that will stall halfway through.
Does Invisalign Hurt?
No, but the first two or three days with each new set feel tight, and the teeth can be tender when you bite down.
That tightness is the treatment working. Each tray is shaped a little differently from the teeth it is being pushed onto, and the pressure eases as the teeth move to meet it. Most people describe it as soreness rather than pain, and it settles within a few days of each change.
The other adjustment is the edges of the trays against the tongue and cheeks in the first week or two, and a slight lisp that usually disappears as you get used to speaking with them in. The day-to-day of living with aligners, from eating out to keeping the trays clean, is covered separately.
What Are Invisalign Attachments?
Attachments are small tooth-colored bumps of composite bonded onto some of your teeth to give the aligners something to grip.
Without them, a smooth tray sliding over a smooth tooth can tip the crown without moving the root, or fail to rotate a tooth at all. The attachment gives the plastic a defined surface to push against, which is what makes the harder movements possible. They are placed at the fitting appointment, are shaped and positioned according to the treatment plan, and are not on every tooth.
They are matched to your tooth color, so they are not obvious at conversational distance, though they are visible close up and they can pick up stain from coffee, tea and red wine. They are removed and polished off at the end of treatment.
Is Invisalign Worth It?
For most people whose case is suitable, yes, provided they will actually wear the aligners for 20 to 22 hours a day.
The advantages are real. The trays are close to invisible, they come out for meals so nothing is off the menu, and brushing and flossing carry on normally rather than around brackets and wires. There are usually fewer emergency-style problems than with fixed braces, because there is no bracket to come loose.
The honest counterweight is discipline and suitability. Fixed braces work whether you cooperate or not, because they are attached. Aligners only work while they are in your mouth, and they have to come out for anything other than water. If a case is genuinely complex, fixed braces may also be the faster and more predictable route. And mail-order aligner services, which promise the same result without an in-person assessment, are a different proposition entirely.
Common Questions About Invisalign
What is an Invisalign refinement?
A refinement is an extra set of aligners made after the main course, to finish movements that did not fully track. It is common rather than a sign something went wrong, and it usually adds a few weeks to a few months.
What affects the cost of Invisalign?
The main factors are how complex the case is and how many aligners it takes, which is why a short Express course and a full comprehensive course are not priced alike. Many dental plans that include orthodontic benefit treat clear aligners the same way they treat fixed braces, so it is worth checking your specific plan rather than assuming either way.
Can you eat with Invisalign in?
No. The aligners come out for every meal and for any drink other than plain water, then go back in after you have brushed. Eating with them in risks cracking the tray, and sugary or acidic drinks get held against the teeth by the plastic.
What happens if you do not wear the aligners enough?
The teeth fall behind the plan and the next tray stops seating properly, which shows up as a visible gap between the tray and the biting edge of the tooth. The usual fix is going back a stage and wearing it longer, and a badly off-track case has to be re-scanned and re-planned.
Considering Invisalign in Everett? See how treatment works at Icon Dental Center →