Invisalign in Rugby · the honest guide
How long does Invisalign take? Months by case type, and what slows it down
Written by Dr Jasmeet Heran, Invisalign dentist at Rugby Smiles · Reviewed September 2026
The short answer: from a few months for a simple front-teeth case to well over a year for a complex bite. At the simple end, a patient needing only a small number of aligners finishes in months. At the other extreme, a Comprehensive case with significant bite correction and several refinements can easily run beyond a year.
The number that matters is not how many aligners you start with. It is how well your teeth follow the plan, how many hours a day the aligners are in, and whether the result needs refining at the end. Below is how each of those plays out, package by package, with the honest caveats.
By package: sets, months and what is included
Every Invisalign package at Rugby Smiles is defined by how many aligner sets it includes and how many refinement rounds come with it. Those two numbers set the realistic timeline. Prices are all-in: aligners, free whitening, Vivera® retainers and twelve months of aftercare.
Express
from £2,495
Lite
£3,250
Moderate
£3,650
Comprehensive
£3,950
Typical times include refinements. Any refinement round beyond the ones included is a flat £195. Which package do I need? explains how we decide.
Why the number of aligners is not the finish line
A common misunderstanding is that fourteen aligners means fourteen weeks and then you are done. The first sequence of aligners is the plan. Once you have worn the last one, we reassess the teeth and the bite. If the result can be improved, we scan again and order refinement aligners, and that second sequence adds time.
“One thing I always explain is that the number of aligners you start with is not necessarily the final treatment length. Once we have completed that first sequence, we reassess the teeth and bite. If we can improve the result further, we scan again and order refinement aligners.”
Dr Jasmeet Heran, Rugby Smiles
The 22-hour rule, and what happens at 18
This is the biggest difference between Invisalign and fixed braces. A fixed brace works all day whether you think about it or not. Invisalign only works while it is in your mouth.
We aim for around 22 hours a day. In practice that means taking the aligners out to eat and drink, cleaning your teeth, and putting them straight back in. Someone who genuinely manages 21 to 22 hours is in a very different position from someone who says they wear them most of the time but is actually achieving 16 to 18.
“Poor wear can mean the teeth do not track properly. Once that happens, the next aligner may not fit correctly and treatment can start falling behind the digital plan.”
Dr Jasmeet Heran, Rugby Smiles
Falling behind is recoverable, but it costs time: a stalled tooth may need extra aligners or a refinement round to catch up. If you already know 22 hours is not realistic for the way you live, fixed braces may honestly be the faster route for you. That is a conversation worth having at the scan, not six months in.
Refinements: common, and not a failure
The ClinCheck® digital plan is our map, but we are dealing with biology. Some teeth move exactly as predicted; others move a little less than we anticipated, particularly for the more difficult movements. That is why refinements are so common, and why we do not treat them as a sign something went wrong.
“Towards the end of a sequence we will assess the position of the teeth, the fit of the aligners and, importantly, the bite. If I am not satisfied, I would rather rescan and refine it than tell the patient we are finished simply because they have reached their last aligner.”
Dr Jasmeet Heran, Rugby Smiles
It is also why we lean towards Comprehensive for cases where refinements are likely: it gives us the freedom to keep improving the result for up to five years rather than counting aligners. What Invisalign can fix, and what it cannot goes through which cases those tend to be.
What the journey looks like, scan to retainer
Every case is different, but the shape of the journey is the same. Here is the sequence, so you know what each stage is for.
1
Free 3D scan
About an hour. The iTero scan builds your digital plan and shows your finished smile before you commit to anything, with the package and the exact price.
2
Aligners made to order
Your aligners are manufactured from the approved plan. We give you the collection date when you book, and fit the first set and any attachments at that visit.
3
The first sequence
You wear each aligner for the time we set, around 22 hours a day, and see us for short checks along the way so we can confirm the teeth are tracking.
4
Reassessment
At the end of the sequence we check position, fit and bite. If it can be better, we rescan and order refinements. If it is right, we stop.
5
Whitening
Free with every package, once the teeth are in their final position.
6
Retainers, for good
Vivera retainers are included. Teeth drift without them, so the retainer routine is the part of the plan that never ends. Retainers explained.
Questions patients ask
How long does Invisalign take for mild crowding?
Mild crowding with a stable bite usually fits Invisalign Lite, up to 14 aligner sets, and typically takes four to eight months including any refinement. Very simple front-teeth cases can fit Express, up to seven sets, and finish in a few months.
How long does Invisalign take to fix an overbite?
Longer, because the back teeth have to move as well as the front. Overbite correction is nearly always a Comprehensive case, typically twelve to eighteen months, and a complicated case with several refinements can run beyond a year.
How many hours a day do I have to wear Invisalign?
Around 22 hours. In practice that means taking the aligners out to eat and drink anything other than water, cleaning your teeth, and putting them straight back in. Twenty-one to twenty-two hours consistently is what keeps you on the plan.
How soon will I see results?
It depends on what is being moved, but front-teeth changes are usually the first you notice, often within the first couple of months. The bigger bite changes happen more gradually and are easier to see in the scans we take along the way than in the mirror.
Do refinements mean my treatment has failed?
No. Refinements are very common. The digital plan is a prediction, and some teeth move a little less than predicted. If the position, the fit or the bite is not right at the end of a sequence, we rescan and order refinement aligners rather than call it finished. Two rounds are included on Lite and Moderate within two years; on Comprehensive, as many as your case needs for up to five years. Anything beyond that is a flat £195.
What happens after the last aligner?
Retainers, for good. Teeth drift back without them. Vivera retainers are included in every package, and we explain the wear routine before you finish. Skipping retainers is the most common reason people end up straightening their teeth twice.
Get your own timeline, not a typical one
The free scan gives you your package, your aligner count and a realistic finish, in writing, before you spend anything.
Read next: how much does Invisalign cost? · playing rugby with Invisalign · side effects and disadvantages · does Invisalign hurt? · how Invisalign actually works · Invisalign in Rugby · Rugby Smiles Dental Clinic · 3 Newbold Road, Rugby CV21 2LQ · 01788 579 577