What Is Invisalign, and How Do Clear Aligners Work?
Invisalign® is a way to straighten teeth using a series of clear, custom-made aligners instead of the metal brackets and wires you might picture when you think of braces. Each aligner is a thin, see-through tray that fits over your teeth. You wear one set for a week or two, then swap it for the next in the series, and each tray nudges your teeth a small step closer to where they should be.
The trays are made from a smooth medical-grade plastic and shaped from a digital scan of your own mouth, so they sit close against your teeth. Because they're clear and removable, most people find them easy to live with – you take them out to eat and brush, then pop them back in. It's an option worth understanding fully before you decide, and this page walks through how it works and how it compares with traditional braces.
What Invisalign Can Help Correct
Clear aligners handle a good range of common alignment and bite concerns. At a consultation we'll let you know whether Invisalign is a realistic option for your situation, or whether another approach would serve you better. Cases it often addresses include:
- Overbite — when the upper front teeth sit too far over the lower front teeth.
- Underbite — when the lower teeth extend past the upper teeth, which can affect chewing.
- Crossbite — when some upper teeth bite inside the lower teeth rather than outside them.
- Gaps between teeth — spaces that you'd like closed for a more even look.
- Open bite — when the upper and lower teeth don't meet as they should, which can affect chewing and speech.
- Crowded teeth — teeth with too little room, which also makes brushing and flossing harder.
Not every case is a match for aligners. More complex bite problems, or teeth that need to move a long way, sometimes call for traditional braces – and that's something we'll be straight with you about.
Invisalign vs. Traditional Braces
Both aligners and braces move teeth, and both can do the job well – they just go about it differently, and each comes with trade-offs. The right choice depends on your teeth, your habits, and what matters most to you. Here's an honest side-by-side:
| Invisalign clear aligners | Traditional braces | |
|---|---|---|
| Appearance | Clear trays, hard to notice | Metal (or tooth-coloured) brackets are visible |
| Removable? | Yes – take out to eat, brush, and floss | No – fixed in place until removed by the dentist |
| Daily commitment | You must wear them 20–22 hours a day | Always on; nothing to remember |
| Food restrictions | Few – you remove trays to eat | Avoid hard and sticky foods |
| Comfort | Smooth plastic, no wires to adjust | Brackets and wires can rub at first |
| Best suited to | Mild to moderate alignment and bite concerns | A wider range, including complex cases |
| Typical length | About 6–18 months | Often up to 2 years or more |
The catch with aligners is discipline: they only work while they're in your mouth. If you know you'll forget to put them back after lunch, fixed braces might actually suit you better. We'll talk it through honestly at your visit.
The Invisalign Treatment Journey
From your first appointment to your last tray, here's what the process usually looks like:
Consultation & scan
Our team examines your teeth, talks through what you'd like to change, and takes a digital scan of your mouth to see whether aligners are a good fit for you.
Your custom plan
Using 3D imaging, we map out how your teeth will move step by step, so you can see the expected result before you commit to anything.
First set of aligners
When your trays arrive, you come in to collect your first set. We check the fit and show you how to wear, remove, and clean them.
Progress check-ins
You wear each set for about 1–2 weeks, then move to the next. We'll see you every 4–6 weeks to check progress and hand over new trays.
Retainer to hold it
Once your teeth are where you want them, a retainer keeps them from drifting back. We'll explain how often to wear it.
Wearing Your Aligners: 20 to 22 Hours a Day
This is the part that makes or breaks Invisalign. Aligners only move your teeth while you're wearing them, so the goal is to keep them in for 20 to 22 hours a day – all the time except when you're eating or cleaning your teeth. Leave them out too long and your teeth can slip back, which stretches out your treatment. In practice it settles into a rhythm fast: out for meals, a quick brush, back in. Many people barely think about them after the first week or two.
New aligners feel snug, and that's normal. Most people describe it as pressure rather than pain when they switch to the next set, and it usually eases within a few days as your teeth settle in. If a set ever feels sharp or truly painful, give us a call.
Easing the first few days in a new tray
A little tenderness when you start a fresh set is a sign the aligner is doing its job. These small things help:
- Switch at bedtime — putting in a new set before sleep means you're through the snuggest hours before you wake.
- Stick to softer foods for the first day or two if chewing feels tender.
- A cold drink or cold compress against the outside of the jaw can settle soreness.
- Over-the-counter pain relief is fine if you need it – follow the label and your dentist's advice.
- Use your chewies – the small foam cylinders help each tray seat fully against your teeth.
- Keep up your hygiene so trapped food and plaque don't add to the discomfort.
Caring for Your Aligners
Aligners are low-maintenance, but a few habits keep them clear, fresh, and working the way they should:
- Rinse and brush them gently — clean the trays with a soft brush and cool water; hot water can warp the plastic.
- Take them out to eat and drink — anything other than plain water can stain the trays or get trapped against your teeth.
- Brush before you put them back — sealing food or sugar under an aligner invites decay.
- Store them in their case — loose aligners get thrown out with a napkin more often than you'd think.
- Keep your check-ups — regular visits let us catch small issues before they slow things down.
Is Invisalign Right for Your Age?
There isn't a magic number. What matters is dental maturity – aligners generally suit teens and adults whose teeth and jaw have finished most of their growing, usually teens from around 13 to 14 and adults of any age. Plenty of the people we see are grown-ups who never had braces as kids, or who had them years ago and watched their teeth drift since. At your consultation, our team checks whether your teeth and jaw are at the right stage for aligners to work well.
Cost, Insurance & CDCP
How much Invisalign costs depends on how much your teeth need to move and how long treatment runs, so we give you a clear figure after your consultation rather than a guess up front. Coverage varies a lot from plan to plan – many dental policies treat Invisalign like any other orthodontic treatment and cover part of it, similar to braces, but the details differ, so it's worth checking your plan or calling your provider. Our office is glad to help you sort out the insurance side and make the most of your benefits. We also accept the Canadian Dental Care Plan (CDCP) and can talk through flexible payment options, so cost is easier to plan around before you begin.
Why Consider Invisalign at Hanlon Creek Dental in Guelph
Straightening your teeth is a months-long relationship with your dental office, so it helps to have it close to home. Our practice is right on Scottsdale Drive in Guelph, which means your check-ins every few weeks don't turn into a drive to Kitchener or Toronto after work or school.
We see whole families, and our team speaks English, French, Spanish, Portuguese, Arabic, and Vietnamese, so it's easy to ask questions in the language you're most comfortable with. We also keep hours that fit around busy schedules, including Wednesdays until 7 pm and some Saturday availability.
Invisalign FAQ
It depends on your plan. Many insurers treat Invisalign as an orthodontic treatment and cover part of it, much as they would traditional braces, but the specifics vary widely. The best way to know is to review your plan or call your provider directly – and our office is glad to help with claims and make the most of the benefits you have.
For most people it's somewhere in the range of 6 to 18 months, though it really depends on how much your teeth need to move. Simpler cases finish sooner; more involved ones take longer. Wearing your aligners the full 20 to 22 hours a day makes a real difference, since the trays only work while they're in. We'll give you a clearer timeline once we've mapped out your plan.
It comes down to dental maturity more than a specific age. Aligners generally suit teens and adults whose teeth and jaw have mostly finished growing – often teens from about 13 to 14, and adults of any age. At your consultation, our team checks whether your teeth and jaw are at the right stage.
Most people describe new aligners as pressure rather than pain, and it usually settles within a few days of starting a fresh set as your teeth adjust. Switching to a new tray at bedtime and sticking to softer foods for a day or two helps ease that first stretch.
You take the trays out to eat, and for anything other than plain water. Eating with them in can damage the plastic, and coloured or sugary drinks can stain the trays or get trapped against your teeth. A quick brush before you pop them back keeps things clean.
Ready to See If Invisalign Suits You?
The easiest first step is a conversation. Call us at (548) 855-0283 or book online, and we'll take a look, explain your options in plain language, and let you know honestly whether clear aligners are a good fit – no pressure either way.