Invisalign is a brand of clear aligner: a series of thin, removable plastic trays that gradually move teeth into a planned position. Many adults and teenagers choose aligners because they’re hard to notice, can be taken out to eat and clean, and don’t involve brackets and wires. But aligners aren’t the right tool for every bite, and they only work if they’re worn as directed. Here’s how they work and what to expect.
How clear aligners move teeth
Teeth move when steady, gentle pressure is applied over time. The bone around the tooth slowly remodels, letting the tooth shift. With aligners, each set of trays is shaped slightly differently from the last. You wear each set for a week or two, then move to the next, and your teeth follow step by step.
Small tooth-coloured bumps called attachments are often bonded to some teeth. They give the aligners something to grip, helping with movements such as rotations. They’re removed at the end of treatment.
Planning your treatment
Treatment starts with an examination, x-rays and a 3D digital scan of your teeth. Your dentist uses software to plan each stage of movement and can show you a simulation of the expected end position. This plan is a guide: teeth don’t always move exactly as predicted, and some people need extra aligners (refinements) partway through or at the end.
Parramatta Dentistry is an Invisalign Platinum Elite Provider, a tier Align Technology awards based on the number of cases a practice treats.
What Invisalign can treat
Clear aligners can be used for many common problems, including:
- mild to moderate crowding
- gaps between teeth
- some overbites, underbites and crossbites
- teeth that have moved back after earlier orthodontic treatment
- straightening before cosmetic treatment such as veneers
More complex problems, such as severe skeletal bite issues, may be better treated with fixed braces or a combination of treatments. Your dentist will tell you honestly if aligners aren’t the best option, and may refer you to a specialist orthodontist.
How long does treatment take?
Treatment length depends on how far your teeth need to move. Simple cases can take a few months, while more involved cases commonly take 12 to 18 months or longer. You’ll usually have check-ups every six to ten weeks to make sure your teeth are tracking.
Wearing aligners day to day
For aligners to work, they generally need to be worn for 20 to 22 hours a day. That means taking them out only to eat, drink anything other than plain water, and clean your teeth. Most people adapt within a week or two.
- Speech: some people have a slight lisp for the first few days.
- Discomfort: each new set can feel tight for a day or two. This is normal and usually settles quickly.
- Eating: take aligners out, eat, then brush (or at least rinse) before putting them back in so food isn’t trapped against your teeth.
- Cleaning aligners: rinse and gently brush them with cool water. Hot water can warp them.
Aligners vs braces
Braces are fixed, so they work around the clock without relying on you to wear them, and they can handle a wider range of movements. Aligners are removable and less visible, and they make brushing and flossing easier, but they depend heavily on wear time. Both approaches can give good results when they’re used for the right case. Learn more about orthodontics in Parramatta.
After treatment: retainers
Teeth naturally tend to drift back towards their old positions, especially in the first year. You’ll need a retainer after treatment, either removable, fixed to the back of your teeth, or both. Retainer wear is usually long term, often at night, so factor this into your decision. Final retainers are included in Invisalign treatment at Parramatta Dentistry. Replacement Essix or Vivera retainers are $150 per arch, or $300 for an upper and lower set.
Cost and payment plans
Invisalign at Parramatta Dentistry ranges from $4,200 to $8,990, including impressions, smile design, your aligners and final retainers. The total fee depends on the complexity of your case and the number of aligners needed. If you have orthodontic cover with your health fund, check your limits and waiting periods. Conditions apply.
Possible risks
Like any orthodontic treatment, aligners have risks. Teeth may not move as planned, needing refinements or a change of approach. Poor cleaning while wearing aligners can lead to decay or gum inflammation. Some people experience root shortening, gum recession or jaw discomfort. Your dentist will discuss these with you.
See our Invisalign page to learn more or book a consultation.
A complimentary smile makeover consultation, including an OPG x-ray, examination and photos, is available for eligible patients considering veneers, implants, full-mouth implants, Invisalign or orthodontics. Conditions apply.
Frequently asked questions
Is Invisalign painful?
Most people feel pressure or tightness for a day or two when they start a new set of aligners. This is usually mild and settles quickly. Over-the-counter pain relief can help if needed. Sharp edges that rub can be smoothed by your dentist.
Can adults have Invisalign?
Yes. Many Invisalign patients are adults. As long as your teeth and gums are healthy, there’s no upper age limit. Your dentist will check for gum disease and decay before starting treatment.
What happens if I don’t wear my aligners enough?
If aligners aren’t worn for the recommended 20 to 22 hours a day, teeth may not move as planned, aligners may stop fitting properly and treatment can take longer or need extra aligners. Consistent wear is the most important factor in getting a good result.
Can I drink coffee with aligners in?
It’s best to take your aligners out for anything other than plain water. Hot drinks can warp the plastic, and coffee and tea can stain aligners and get trapped against your teeth. Rinse or brush before putting them back in.
Will I need attachments?
Many people do. Attachments are small tooth-coloured bumps bonded to some teeth that help aligners grip and move teeth more precisely. They’re removed at the end of treatment.
Do I need to see a specialist orthodontist?
Many cases can be treated by an experienced general dentist. For more complex bite problems, your dentist may recommend a specialist orthodontist. Ask about your dentist’s experience with cases like yours.
Book at Parramatta Dentistry
Parramatta Dentistry is at Suite 25, Level 3, 27 Hunter Street, Parramatta, a short walk from Parramatta Station. We’re open Monday to Friday, 9am to 6pm, and HICAPS is on site, so you can claim from your health fund on the day and pay only the gap, if there is one. Call (02) 8090 1109 or book online.
This article is general information only and isn’t a substitute for personalised advice from your dentist.