What Are Invisalign Chewies and Do You Need Them?

Whites Dental Waterloo

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Whites Dental Marble Arch (W2)

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Adults starting Invisalign often get given small foam cylinders called “chewies” – but many aren’t told exactly what they’re for or whether they really matter.

Invisalign chewies play a simple but important role in helping aligners fit properly, seat fully, and apply force as planned. Used correctly, they can improve tracking and reduce the risk of delays or refinements later in treatment.

This guide explains what Invisalign chewies are, how they work, when to use them, and whether they’re essential for successful treatment.

Quick Answer: Invisalign chewies are soft rubber or foam cylinders that help seat aligners fully against the teeth. They improve fit, support accurate tooth movement, and reduce the risk of tracking issues.

🔑 Key Takeaways

  • Chewies help aligners sit fully against the teeth
  • They improve tracking and planned tooth movement
  • Most useful when starting new trays or using attachments
  • Simple habit that can prevent delays or refinements

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Invisalign braces cost in London at Whites Dental clinics in Waterloo and Marble Arch

🧭 Jump to:

What are Invisalign chewies?
Why chewies are used
How to use Invisalign chewies
Chewies and tracking
FAQs

What are Invisalign chewies?

Invisalign chewies are small, cylindrical pieces of soft rubber or foam designed to be gently bitten on while wearing aligners.

Their purpose is mechanical rather than cosmetic. By applying light, even pressure, chewies help push aligners fully onto the teeth, ensuring close contact between the aligner and each tooth surface.

They’re usually provided by your Invisalign dentist at the start of treatment or when attachments are fitted.

How chewies support force delivery

Invisalign aligners are designed to apply force evenly across specific tooth surfaces. For that force to be effective, the aligner must sit fully and consistently against the teeth.

  • Even small gaps reduce force accuracy
  • Poor seating changes the direction of pressure
  • Force may be absorbed by plastic instead of teeth

Chewies help eliminate these gaps, allowing aligners to deliver force exactly as planned.

Why are Invisalign chewies used?

Aligners only work properly when they fit precisely. Even small gaps between the aligner and the tooth can reduce the effectiveness of force delivery.

Chewies help by:

  • Seating new aligners fully after a tray change
  • Helping aligners adapt around attachments
  • Reducing air gaps that cause poor tracking
  • Supporting planned tooth movement

They’re especially useful during the first few days of a new aligner, when stiffness can prevent full seating.

Why chewies are especially useful for adults

Adult teeth often respond differently to orthodontic force compared to younger patients.

  • Bone density is typically higher
  • Ligaments remodel more slowly
  • Attachments are more commonly used

Chewies help maintain consistent aligner seating in these conditions, supporting predictable movement throughout treatment.

How to use Invisalign chewies properly

Using chewies correctly is simple, but consistency matters.

  • Insert your aligners fully before using a chewie
  • Bite down gently for 5–10 seconds per area
  • Move around the mouth, focusing on tight or newly moved teeth
  • Use chewies 1–2 times per day, especially after tray changes

Chewies should not cause pain. Firm pressure is enough – aggressive biting is unnecessary and unhelpful.

How chewies fit into everyday Invisalign wear

Chewies are designed to complement normal aligner wear, not replace it.

  • They work best after aligners are reinserted
  • They support seating rather than movement
  • They’re most effective when used consistently

Using chewies briefly and regularly is more beneficial than long, infrequent sessions.

When are Invisalign chewies most important?

Chewies are not equally important at every stage of Invisalign treatment. They’re most useful at specific moments where aligner fit is more likely to be compromised.

Patients are usually advised to prioritise chewies:

  • During the first 2–3 days of a new aligner
  • When attachments have just been fitted or adjusted
  • If an aligner feels loose or uneven
  • When minor tracking gaps are noticed early

Using chewies proactively at these points can reduce the likelihood of refinements later in treatment.

How chewies work alongside attachments

Attachments give aligners leverage, while chewies help ensure that leverage is applied correctly.

  • Attachments shape how force is applied
  • Chewies ensure aligners engage attachments fully
  • Both are required for controlled movement

Using chewies is particularly important in cases involving rotations, vertical movement, or bodily tooth shifts.

Can Invisalign chewies replace good wear time?

No. Chewies support aligner fit, but they cannot compensate for insufficient wear.

  • They do not move teeth on their own
  • They cannot overcome missed hours
  • They work best with consistent aligner use

Chewies should be viewed as a support tool, not a shortcut.

Do Invisalign chewies improve tracking?

Yes. While chewies don’t move teeth on their own, they help aligners deliver force accurately.

Poor tracking often starts when aligners don’t sit flush against teeth. Over time, this can lead to:

  • Delayed tooth movement
  • Visible gaps between teeth and aligners
  • Need for refinements or rescans

Using chewies consistently reduces these risks, particularly in cases involving attachments or more complex movements.

Early signs chewies may be needed more often

Chewies are particularly helpful when small seating issues are caught early.

  • Aligners feel loose at the edges
  • Small gaps appear near attachments
  • New trays don’t feel fully seated

Using chewies at this stage can prevent more significant tracking problems later.

Are Invisalign chewies always required?

Not every Invisalign patient needs to use chewies daily throughout treatment.

However, dentists often recommend them:

  • At the start of treatment
  • After switching to a new aligner
  • When attachments are fitted
  • If tracking issues are developing

They’re a low-effort tool that supports predictable outcomes – especially in adult cases.

FAQs: Invisalign Chewies

Patients often ask practical questions once chewies are mentioned. These answers cover the most common concerns.

How long should I use Invisalign chewies each day?

Most patients benefit from 5–10 minutes per day, particularly when starting a new aligner.

Can I chew gum instead of using chewies?

No. Gum does not apply controlled pressure and may interfere with aligner fit.

Do chewies speed up Invisalign treatment?

They don’t speed treatment up, but they help prevent delays caused by poor tracking.

What happens if I don’t use chewies?

Some patients progress fine without them, but skipping chewies increases the risk of aligners not fitting as planned.

How often should Invisalign chewies be replaced?

Chewies should be replaced regularly, especially if they become misshapen or discoloured. Using worn chewies reduces effectiveness and hygiene.

Can I buy replacement chewies?

Yes. Many dental suppliers sell Invisalign-compatible chewies if replacements are needed.

Can using chewies incorrectly cause problems?

Excessive force or overuse won’t improve results and may cause discomfort. Gentle, controlled pressure is all that’s required.

Can I use chewies too much?

Overuse does not improve results and may cause discomfort. Short, controlled use is sufficient.

Are chewies different for upper and lower teeth?

No. The same chewies can be used throughout the mouth. Focus should be on even pressure rather than location.

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Whites Dental (“we”, “us” or “our”) are committed to protecting and respecting your privacy.

The practice respects your privacy and is committed to protecting your personal data. This Privacy Policy sets out how we will do this, taking into account data protection laws as well as our professional guidelines and requirements.

The data controller is Whites Dental; the Information Governance Lead is Deepa Chopra.

This Privacy Policy is available on the practice website at www.whitesdental.co.uk/privacy-policy, by email if you contact [email protected] or by calling the practice on 0204 527 3210.

This policy (together with our Cookies Policy) sets out the basis on which any personal data we collect, or that you provide to us, will be processed by us. It does not include data where the identity has been removed (i.e. anonymous data).

Please read the following carefully to understand our views and practices regarding your personal data and how we will treat it.

You will be asked to provide personal information when joining the practice. The purpose of us processing this data is to provide optimum health care to you by, for example, recommending the most relevant treatment and ensuring your safety by taking your medical history.

The categories of data we process

  • Contact data (such as name, address, email address, telephone number) for the purposes of corresponding with you, for example, regarding your appointments and treatment.
  • Contact data (such as name, address, email address, telephone number) for the purposes of direct mail/email/text/marketing.
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  • Treatment data (such as photos, moulds, X-rays, clinical findings) for the purposes of providing you with the best treatment.
  • Financial data (such as credit card details, bank account information, credit history, employment status) for the purposes of processing your payment for treatment(s).
  • Usage data (such as information about how you use our website, products and services) for the purposes of improving the way we provide our treatment and services.

The ways we collect information about you

We may collect and process the following data about you in operating the website and performing any of our services and treatment(s):

Direct
  • Information you give us (including information you give to our Clinical Lead, Specialists, Dentists, Hygienists and Orthodontic Therapists who are contracted to work for us). You may give us information about you by filling in forms on our website www.whitesdental.co.uk or by corresponding with us by phone, email, in person or otherwise.
  • Personal data is obtained when a patient joins the practice, when a patient is referred to the practice and when a patient subscribes to an email list.
Automatic
  • Information we automatically collect about you. With regard to each of your visits to our website we may automatically collect the following information:
  • Technical information, including the internet protocol (IP) address used to connect your computer to the internet, your login information, browser type and version, time zone setting, browser plugin types and versions, operating system and platform; and
  • Information about your visit, including the full Uniform Resource Locators (URL) clickstream to, through and from our site (including date and time); products you viewed or searched for; page response times, download errors, length of visits to certain pages, page interaction information (such as scrolling, clicks, and mouseovers), and methods used to browse away from the page and any phone number used to call our customer service number.
From third parties
  • Our Clinical Lead, Specialists, Dentists, Hygienists and Orthodontic Therapists are third parties working for us as contractors, however, they are contractually bound to us with regard to obligations of confidentiality in the same way as our employees and by professional obligations of confidentiality.
  • You may have been referred to us for treatment from Invisalign and we will therefore receive contact data, special category data concerning health, treatment data and/or financial data from them.
  • Information we receive from other sources. We may receive information about you if you use any of the other websites we operate or the other services we provide.
  • We are also working closely with third parties (including, for example, business partners, subcontractors in technical, payment and delivery services, advertising networks, analytics providers, search information providers, credit reference agencies) and may receive information about you from them.
  • We use third-party analytics services (such as Google Analytics) to evaluate your use of the website, compile reports on activity, collect demographic data, analyze performance metrics, and collect and evaluate other information relating to our website and internet usage. These third parties use cookies and other technologies to help analyse and provide us with data.

How we share data with third parties

We may share your Contact data, special category of data relating to health, Financial data, Treatment data and/or Usage data with selected third parties including:

  • Our Clinical Lead, Specialists, Dentists, Hygienists and Orthodontic Therapists.
  • Private health insurance companies (at your request if you are using private health insurance).
  • Credit reference agencies.
  • Equipment providers and laboratories such as Align Tech, Nimrodental, and Ashford Orthodontics.
  • Professional compliance organisations such as BDA.
  • Data storage and transfer platforms such as Microsoft Sharepoint and Dropbox.
  • Our payment platform Natwest.
  • Our practice management and CRM software providers Pearl.
  • Our live chat provider Quriobot.
  • Advertisers and advertising networks that require the data to select and serve relevant adverts to you and others such as Facebook.
  • Analytics and search engine providers that assist us in the improvement and optimisation of our site such as Google.

This is a list of the main third parties with whom we share your personal data. If you would like a full list of third parties who process your data, and their contact details, please contact us using the details set out above.

We never pass your personal details to a third party unless we have a contract for them to process data on our behalf and will otherwise keep it confidential.

If we intend to refer a patient to another practitioner or to secondary care such as a hospital we will gain your consent before the referral is made and the personal data is shared.

The website may include links to third party websites, plugins and applications. Clicking on those links or enabling those connections may allow third parties to collect or share data about you. We do not control these third party websites and are not responsible for their privacy statements. When you leave our website, we encourage you to read the privacy notice of every website you visit.

Data transferred outside the EU

  • Personal data is stored in the EU whether in digital or hard copy format.
  • Personal data is stored in the US in digital format when the data storage company is certified with the EU-US Privacy Shield.

Lawful basis for processing personal data

The lawful bases for processing personal data (including providing your personal data to third parties) are:

  • Consent of the data subject for data relating to treatment, care, our services, processing payment, credit checks, marketing and reviews, improving our services and improving our website (including using data analytics). This will also apply to the storage of personal data for these purposes.
  • Processing is necessary for the performance of a contract with the data subject or to take steps to enter into a contract such as the provision of the services by us.
  • Processing is necessary to comply with a legal obligation such as financial, tax and contractual laws.

For consent relating to children and people who may not have mental capacity to give consent, please contact us using the details above for a copy of our Safeguarding and Mental Capacity policies.

The reason for processing special category data such as patients’ health data is:

  • The processing is necessary for the purposes of preventative or occupational medicine, for assessing the working capacity of the employee, medical diagnosis, the provision of health or social care or treatment or management of health or social care systems and services on the basis of Union or Member State law or a contract with a health professional; and
  • Data is processed by or under the responsibility of a professional subject to the obligation of professional secrecy under Union or Member State law or rules established by national competent bodies or by another person also subject to an obligation of secrecy under Union or Member State law or rules established by national competent bodies.

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We (and the third parties listed above) process your personal data for the following purposes:

  • To provide you with our services.
  • To discuss relevant treatments.
  • To provide a safe working environment for staff, contractors and patients.
  • To check your employment and financial status for payment plans.
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If you would like more information about how your data is processed please contact us by using the details set out above.

Data retention

The retention period for special category data in patient records is a minimum of 10 years and may be longer for complex records in order to meet our legal requirements. The retention periods for other personal data is two years after it was last processed.

You will receive marketing emails until you unsubscribe, either by contacting us or by clicking on the unsubscribe link at the bottom of the email. For details of other retention periods please contact us using the details set out above.

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You have the following personal data rights:

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  • The right to not have a decision made about you based solely on automated processing.

You have the right to withdraw consent at any time. If you request us to do so, we will no longer process your data. However, this will not affect the lawfulness of any processing carried out before you withdraw your consent. If you withdraw your consent, we will not be able to provide you with the services. You have the right to obtain a free copy of your patient records within one month of submitting a request.

If you are not a patient of the practice you have the right to withdraw consent for processing personal data, to have a free copy of it within one month of submitting a request, to correct errors in it or to ask us to delete it. You can also withdraw consent from communication methods such as telephone, email or text.

We have carried out a Privacy Impact Assessment and if you would like a copy please contact us using the details set out above.

If you wish to exercise any of the rights set out above, in the first instance, please contact us using the details set out above.

You will not have to pay a fee to access your personal data (or to exercise any of the other rights). However, we may charge a reasonable fee if your request is clearly unfounded, repetitive or excessive. Alternatively, we may refuse to comply with your request in these circumstances.

We may need to request specific information from you to help us confirm your identity and ensure your right to access your personal data (or to exercise any of your other rights). This is a security measure to ensure that personal data is not disclosed to any person who has no right to receive it. We may also contact you to ask you for further information in relation to your request to speed up our response.

Further details of these rights can be obtained on the Information Commissioner’s website.

Data security

We have put in place appropriate security measures to prevent your personal data from being lost, used or accessed in an unauthorised way, altered or disclosed. In addition, we limit access to your personal data to those employees, agents, contractors and other third parties who have a business need to know. They will only process your personal data on our instructions and they are subject to a duty of confidentiality.

We have put in place procedures to deal with any suspected personal data breach and will notify you and any applicable regulator of a breach where we are legally required to do so.

Unfortunately, the transmission of information via the internet is not completely secure. Although we will do our best to protect your personal data, we cannot guarantee the security of your data transmitted through our website; any transmission is at your own risk. Once we have received your information, we will use strict procedures and security features to try to prevent unauthorised access.

Comments, suggestions and complaints

Please contact the practice for a comment, suggestion or a complaint about your data processing at [email protected], or 0204 527 3210 or by writing to or visiting the practice. We take complaints very seriously.

If you are unhappy with our response or if you need any advice you should contact the Information Commissioner’s Office (ICO). Their telephone number is 0303 123 1113, you can also find other contact options here. The ICO can investigate your claim and take action against anyone who’s misused personal data. You can also visit their website for information on how to make a data protection complaint.

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Our consent for marketing requires a positive opt-in, we don’t use pre-ticked boxes or any other method of default consent. We make it easy for people to withdraw consent, tell you how to and keep contemporaneous evidence of consent. Consent to marketing is never a precondition of a service.

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