Patient’s informed consent and agreement regarding Invisalign® orthodontic treatment 

Your doctor has recommended the Invisalign system for your orthodontic treatment. Although orthodontic treatment can lead to a healthier and more attractive smile, you should also be aware that any orthodontic treatment (including orthodontic treatment with Invisalign aligners) has limitations and potential risks that you should consider before undergoing treatment. 

Device Description. 

Invisalign aligners, developed by Align Technology, Inc. (“Align”) consist of a series of clear plastic, removable appliances that move your teeth in small increments. Invisalign’s product combines your doctor’s diagnosis and prescription with sophisticated computer graphics technology to develop a treatment plan which specifies the desired movements of your teeth during the course of your treatment. Upon approval of a treatment plan developed by your doctor, a series of customised Invisalign aligners is produced specifically for your treatment. 


You may undergo a routine orthodontic pre-treatment examination including radiographs (x-rays) and photographs. Your doctor will take impressions or intra-oral scans of your teeth and send them along with a prescription to the Align laboratory. Align technicians will follow your doctor’s prescription to create a ClinCheck® software model of your prescribed treatment. Upon approval of the ClinCheck treatment plan by your doctor, Align will produce and ship a series of customised aligners to your doctor. The total number of aligners will vary depending on the complexity of your malocclusion and the doctor’s treatment plan. The aligners will be individually numbered and will be dispensed to you by your doctor with specific instructions for use. Unless otherwise instructed by your doctor, you should wear your aligners for approximately 20 to 22 hours per day, removing them only to eat, brush and floss. As directed by your doctor, you will switch to the next aligner in the series every two weeks or as directed by your doctor. Treatment duration varies depending on the complexity of your doctor’s prescription. Unless instructed otherwise, you should follow up with your doctor at a minimum of every 6 to 8 weeks. 

Some patients may require bonded aesthetic attachments and/or the use of elastics during treatment to facilitate specific orthodontic movements. Patients may require additional impressions or intra-oral scans and/or refinement aligners after the initial series of aligners. 


  • Invisalign aligners offer an aesthetic alternative to conventional braces. 
  • Aligners are nearly invisible so many people won’t realise you are in treatment. 
  • Treatment plans can be visualised through the ClinCheck software. 
  • Aligners allow for normal brushing and flossing tasks that are generally impaired by conventional braces. 
  • Aligners do not have the metal wires or brackets associated with conventional braces. 
  • The wearing of aligners may improve oral hygiene habits during treatment. 
  • Invisalign patients may notice improved periodontal (gum) health during treatment. 

Risks and Inconveniences 

Like other orthodontic treatments, the use of Invisalign product(s) may involve some of the risks outlined below: 

  1. Failure to wear the appliances for the required number of hours per day, not using the product as directed by your doctor, missing appointments, and erupting or atypically shaped teeth can lengthen the treatment time and affect the ability to achieve the desired results; 
  2. Dental tenderness may be experienced after switching to the next aligner in the series; 
  3. Gums, cheeks and lips may be scratched or irritated; 
  4. Teeth may shift position after treatment. Consistent wearing of retainers at the end of treatment should reduce this tendency; 
  5. Tooth decay, periodontal disease, inflammation of the gums or permanent markings (e.g. decalcification) may occur if patients consume foods or beverages containing sugar, do not brush and floss their teeth properly before wearing the Invisalign products, or do not use proper oral hygiene and preventative maintenance; 
  6. The aligners may temporarily affect speech and may result in a lisp, although any speech impediment caused by the Invisalign® products should disappear within one or two weeks; 
  7. Aligners may cause a temporary increase in salivation or mouth dryness and certain medications can heighten this effect; 
  8. Attachments are tooth-coloured “buttons” that may be bonded to one or more teeth during the course of treatment to facilitate tooth movement and/or appliance retention. Use of attachments may make it more noticeable that you are in treatment. These will be removed after treatment is completed; 
  9. Attachments may fall off and require replacement. 
  10. Teeth may require interproximal recontouring or slenderising in order to create space needed for dental alignment to occur; 
  11. The bite may change throughout the course of treatment and may result in temporary patient discomfort. 
  12. In rare instances, slight superficial wear of the aligner may occur where patients may be grinding their teeth or where the teeth may be rubbing and is generally not a problem as overall aligner integrity and strength remain intact. 
  13. At the end of orthodontic treatment, the bite may require adjustment (“occlusal adjustment”). 
  14. Atypically-shaped, erupting, and/or missing teeth may affect aligner adaptation and may affect the ability to achieve the desired results. 
  15. Treatment of severe open bite, severe overjet, mixed dentition, and/or skeletally narrow jaw may require supplemental treatment in addition to aligner treatment. 
  16. Supplemental orthodontic treatment, including the use of bonded buttons, orthodontic elastics, auxiliary appliances/ dental devices (e.g. temporary anchorage devices, sectional fixed appliances), and/or restorative dental procedures may be needed for more complicated treatment plans where aligners alone may not be adequate to achieve the desired outcome. 
  17. Teeth which have been overlapped for long periods of time may be missing the gingival tissue below the interproximal contact once the teeth are aligned, leading to the appearance of a “black triangle” space. 
  18. Aligners are not effective in the movement of dental implants. 
  19. General medical conditions and use of medications can affect orthodontic treatment; 
  20. Health of the bone and gums which support the teeth may be impaired or aggravated; 
  21. Oral surgery may be necessary to correct crowding or severe jaw imbalances that are present prior to wearing the Invisalign product. If oral surgery is required, risks associated with anesthesia and proper healing must be taken into account prior to treatment; 
  22. A tooth that has been previously traumatised, or significantly restored may be aggravated. In rare instances the useful life of the tooth may be reduced, the tooth may require additional dental treatment such as endodontic and/or additional restorative work and the tooth may be lost; 
  23. Existing dental restorations (e.g. crowns) may become dislodged and require re-cementation or in some instances, replacement; 
  24. Short clinical crowns can pose appliance retention issues and inhibit tooth movement; 
  25. The length of the roots of the teeth may be shortened during orthodontic treatment and may become a threat to the useful life of teeth;
  26. Product breakage is more likely in patients with severe crowding and/or multiple missing teeth; 
  27. Orthodontic appliances or parts thereof may be accidentally swallowed or aspirated; 
  28. In rare instances, problems may also occur in the jaw joint, causing joint pain, headaches or ear problems; 
  29. Allergic reactions may occur; 
  30. Teeth that are not at least partially covered by the aligner may undergo supraeruption; 
  31. In rare instances patients with hereditary angioedema (HAE), a genetic disorder, may experience rapid local swelling of subcutaneous tissues including the larynx. HAE may be triggered by mild stimuli including dental procedures. 

Informed Consent 

I have been given adequate time to read and have read the preceding information describing orthodontic treatment with Invisalign aligners. I understand the benefits, risks, alternatives and inconveniences associated with treatment as well as the option of no treatment. I have been sufficiently informed and have had the opportunity to ask questions and discuss concerns about orthodontic treatment with Invisalign® products with my doctor from whom I intend to receive treatment. I understand that I should only use the Invisalign products after consultation and prescription from an Invisalign trained doctor, and I hereby consent to orthodontic treatment with Invisalign products that have been prescribed by my doctor. 

Due to the fact that orthodontics is not an exact science, 

I acknowledge that my doctor and Align Technology, Inc. headquartered in San Jose, California (“Align”) have not and cannot make any guarantees or assurances concerning the outcome of my treatment. I understand that Align is not a provider of medical, dental or health care services and does not and cannot practice medicine, dentistry or give medical advice. No assurances or guarantees of any kind have been made to me by my doctor or Align, its representatives, successors, assigns, and agents concerning any specific outcome of my treatment. 

I understand and consent to my doctor collecting and using my medical records, including, but not limited to, radiographs (x-rays), reports, charts, medical history, photographs, findings, plaster models, impressions of teeth, or intra-oral scans, prescriptions, diagnosis, medical testing, test results, ethnicity, billing, and other treatment records in my doctor’s possession (“Medical Records”) to the extent necessary for treatment, customer service, and billing. If I do not provide my consent to these uses of my Medical Records then I may not be able to receive Invisalign treatment. 

I will not, nor shall anyone on my behalf seek legal, equitable or monetary damages or remedies for such disclosure. I acknowledge that use of my Medical Records is without compensation and that I will not nor shall anyone on my behalf have any right of approval, claim of compensation, or seek or obtain legal, equitable or monetary damages or remedies arising out of any use such that comply with the terms of this Consent. 

A copy of this Consent shall be considered as effective and valid as an original. I have read, understand and agree to the terms set forth in this Consent as indicated by my signature below. 

Privacy Notice 

Your doctor is the controller of any personal data included in your Medical Records. Align and other members of its corporate group ("Align Group") will receive your medical records, which may be stored on Align Group's servers outside your country of residence. However, the Align Group will continue to protect your information in accordance with the Align Group's Binding Corporate Rules (“BCRs”), which can be found at

Your Medical Records will only be shared with other third parties if otherwise permitted by the applicable law, such as if necessary to protect your vital interests or those of another person or if necessary for the establishment, exercise or defence of legal claims. Your doctor and the Align Group will process your Medical Records for the purpose of your treatment. The Align Group may also anonymise your Medical Records and use it for internal, analysis and research purposes. Your doctor and the Align Group will retain your Medical Records for only as long as it has an ongoing legitimate need to do so, for example, to provide you with treatment and to comply with regulatory obligations. The Medical Records will then be either deleted or anonymised or, if this is not possible (for example, because your Medical Records have been stored in backup archives), then they will be securely stored until deletion is possible. 

If you have any questions about how your Medical Records are being used you can ask your doctor, including about any of your rights to: 

  • access, correct, update or request deletion of your Medical Records; 
  • restrict processing of your Medical Records; 
  • request that your doctor transfer your Medical Records to another doctor; and 
  • withdraw your consent at any time to the processing of your Medical Records. 

You also have the right to complain to your local data protection authority about the collection and use of your Medical Records. 

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If the Patient lacks the legal capacity to consent, the parent or guardian must also sign this Agreement:

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