We answer the most frequently asked questions at Complete Smile Dental about Invisalign treatment in the FAQs below.

Invisalign Treatment FAQs*


*If you cannot find the specific question you have in mind, please call our helpful reception on 07 3300 3388 for more information – or to book a FREE Invisalign consultation.

Invisalign Basics

What are Invisalign clear aligners?

Invisalign clear aligners are a removable, hygenic and almost invisible orthodontic treatment that utilises clear, plastic aligners to realign and straighten teeth.

How do Invisalign clear aligners work?

The Invisalign clear aligners work through  a series of near invisible aligners. These are custom designed on a computer by your dentist and made by the Invisalign lab specifically for your teeth.

A series of these clear aligners are worn over several months with a fresh set of aligners fitted each fortnight.

When you have used up all your aligners according to your treatment plan, your teeth should have been shifted to their new positions.

What sorts of Invisalign clear aligners are on the market in Australia?

  •  Invisalign First: Designed to develop better arches to make room for emerging teeth – for kids aged 7-11 years.
  • Invisalign Teen: For active, younger teenagers with tooth eruption tabs to accomodate the growth of permanent teeth within the teeth and for lower jaw advancement issues.
  • Invisalign Express (i7)/Invisalign Lite: For adults with less complex teeth alignment problems. Ideal for minor alignment corrections over a much shorter time period – 3 to 7 months.
  • Invisalign Full: A comprehensive treatment over a 12 to 18 month period for mild to moderate orthodontic treatment.

Invisalign Benefits

What tooth correction issues are suitable for Invisalign treatment?

Invisalign can help improve and correct a range of tooth correction issues including:

  • Crowded teeth
  • Overbites
  • Underbites
  • Crossbites
  • Tooth gaps
  • Crooked teeth that are rotated, twisted or misplaced

What are the benefits of Invisalign?

Invisalign provides a range of oral health and lifestyle benefits, including:

  • the comfort of smooth plastic over traditional braces thus avoiding gum and soft tissue irritation
  • virtually transparent so they don’t detract from your smile during treatment
  • improved oral care and hygiene since Invisalign aligners are easily removable when it’s time to brush your teeth
  • eat or drink whatever you want with convenient removal for dining and everday life for a few hours per day
  • less time spent at dental visits since  adjustments are only neccessary every couple of months

Invisalign Treatment

What can you expect during Invisalign treatment?

An Invisalign treatment plan has four treatment stages including:

  1. Your initial Invisalign consultation and assessment of suitablity
  2. Discussion and planning of customised treatment protocol and treatment time
  3. Digital molding, design and fabrication of aligners by the Invisalign lab
  4. Custom trays are fitted and active Invisalign treatment period commences
  5. Follow-up dental visits to check your progress
  6. The final result – Straighter teeth!  

How long do you have to wear Invisalign aligners each day?

It is recommended to wear Invisalign aligners for no less than 22 hours per day but 20 hours is possible but may impact on the effectiveness of treatment. 

How frequently do I have to change over my Invisalign aligner trays?

Invisalign aligner trays are usually changed every 2 weeks but everyone has different requirements so follow intervals as set out by your Invisalign treatment plan. 

How many times do I need to see my dentist during Invisalign treatment?

You may need to see your dentist at least 2 times and/or every 6-8 weeks depending on the complexity of your Invisalign treatment plan. Taking the time to visit your dentist more often ensures the best possible result with no complications.

How many sets of Invisalign aligners do you get at once?

You can take home approximately 3 to 4 sets of Invisalign aligner trays every 6 to 8 weeks. Your Invisalign dentist can advise you on how many sets you can be provided. For example, if only your top front teeth are being straightened, your bottom teeth may only need a placeholder tray.


How long will it be before I notice a difference with Invisalign?

You will start to notice a visible difference to your smile in as little as 6 weeks to a few months into your treatment. However, this all depends on the complexity of your teeth misalignment issues.

Invisalign Costs

What is the average cost of Invisalign treament?

On average, Invisalign treatment costs between $2500 to $7000. The costs of Invisalign treatment will vary according to the complexity of your teeth correction issues. In Australia, Invisalign can start from $1800.

Is Invisalign treatment covered by my health fund?

If your dental extras policy covers orthodontic treatment, you should be able to make a claim. Check your health insurance policy as coverage differs between health fund providers.

Does Complete Smile Dental offer payment plans for Invisalign?

Yes, Complete Smile Dental offer interest free payment plans to suit your budget. For more information, visit our Interest-free Payment Plans page.

How does Invisalign treatment costs compare to braces?

Invisalign treatment costs are not significantly different to braces. Baseline costs are a little higher but upper costs are quite similar.

Your dentist will give you an exact guide at your Invisalign consultation taking into account any treatment factors that may impact on your overall costs.

Invisalign Lifestyle

Is Invisalign comfortable to wear day-to-day?

Invisalign aligners are usually quite comfortable to wear because they are made of smooth plastic.

The only time you may feel some minor discomfort is when you switch to new set of aligners. Some minor pressure sensations may occur as your teeth readjust to the next stage of aligner trays but these should subside after a couple of days.

Is Invisalign suitable for pregnant women?

Yes, Invisalign treatment is suitable for pregnant women because the clear aligners are 100% bio-safe and can be used throughout pregnancy. The main issue with pregnant women undergoing orthodontic treatment of any type including braces is ligament laxity and loose teeth due to pregnancy hormones.

Morning symptoms like vomiting may also have an effect on a pregnant woman’s oral care and hygiene. The recommended time to commence Invisalign treatment if you are pregnant is one month before conception or during the 2nd trimester of your pregnancy.

Do I have to wear Invisalign aligners at night?

Yes, you’ll have to wear Invisalign aligners when you sleep at night because there is a requirement to wear them for 20-22 hours a day for a successful result. However, wearing Invisalign aligners in bed should not disturb your sleep.

Remove your Invisalign aligner trays only for meals and to clean your teeth.

Is it okay to chew gum or smoke while wearing Invisalign?

No, you should not chew gum or smoke while wearing Invisalign aligners. Chewing gum mays cause trays to catch on each other while smoking may cause discolouration making them more visible.

It is recommended to remove your aligners to chew gum or smoke and replace as soon as possible. Don’t spend uneccessary time  without your aligners on as this may impact on the effectiveness of Invisalign. Remenber to wear your aligners for at least 20-22 hours a day minimum.

If I take a holiday, can I bring along extra sets of aligners?

Yes, you can bring along extra sets of aligners on your holiday. Simply arrange your extras with your Invisalign dentist before you leave and carry your aligners in a hygienic storage case.

When you return, pop into your dentist for your next sets of aligners and a check up to make sure your treatment plan is progressing smoothly.

What if my Invisalign trays feel sore or painful?

If you feel any prolonged pain or discomfort when wearing Invisalign aligners, you may have a treatment-related problems. Simply remove your aligners and book a visit to your dentist to assess the problem as soon as possible to prevent your teeth from shifting back.

However, any soreness and pain experienced is usually related to the pressure exerted on your teeth. This sensations should abate after a few days but see your dentist if not. 

Will Invisalign aligners affect my speech?

Yes, wearing Invisalign aligners may give you a slight lisp with “s” or “th” consonants but as your tongue familiarises itself with the new contours of the aligners, this speech effect should fade.


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