Orthodontic education for Nanaimo & areaFind clear-aligner consultations
Common aligner auxiliaries

Invisalign attachments and interproximal reduction

Attachments help the aligner grip and direct force. IPR creates measured space between selected teeth. Neither should be treated as a surprise add-on.

Smiling adult woman representing clear-aligner treatment
Diagnosis before applianceThis page supports informed questions. It cannot examine you or determine treatment suitability.
The plain answer

Attachments and IPR are planning tools used for specific movements or space requirements.

Tooth-coloured composite attachments are bonded in shapes and positions selected by the digital plan. They can support rotation, root movement, extrusion, anchorage or aligner retention. They are visible at close range and require cleaning around their edges.

Interproximal reduction removes a small prescribed amount of enamel between selected teeth to create space or improve tooth-size relationships. The provider should explain where, when and how much is planned and how it is measured.

Participating Nanaimo offices

Invisalign and clear-aligner consultations in two parts of Nanaimo

This website remains a regional educational resource. Both offices offer Invisalign and clear-aligner consultations. Choose the location that is most convenient for you.

Central Nanaimo / Terminal Park

Terminal Park Dental

4-1559 Estevan Rd, Nanaimo, BC V9S 3Y3

General dental practice. Invisalign and clear-aligner consultations are available.

North Nanaimo / Dover

Eagle Point Dental

1-6304 Dover Rd, Nanaimo, BC V9V 1S4

General dental practice. Invisalign and clear-aligner consultations are available.

What matters

Key points before you act

Use these as a decision filter at a real consultation.

01

Attachments

Composite shapes bonded to teeth so the aligner can apply force more effectively.

02

IPR

Measured enamel reduction between teeth to create controlled space or reshape contacts.

03

Elastics

Sometimes used with cut-outs or bonded buttons to add bite-correction forces.

Why clear aligners are not always attachment-free

A smooth tray can push on broad tooth surfaces, but certain movements need a more useful surface for force. Attachments change how the plastic engages the tooth and can make the appliance more visible than advertising photographs suggest.

Attachment design is part of the prescription. A missing or chipped attachment may or may not need immediate replacement depending on the stage and purpose, so contact the treating office rather than guessing.

What should be planned and documented

The provider should be able to explain:

No single photograph, scan or symptom can answer every one of those questions. The treating provider should explain which records are needed, what each record shows and how the findings change the plan.

  • which teeth need attachments and what movement each supports;
  • whether elastics, buttons or bite features are also expected;
  • where IPR is planned and the total amount by contact;
  • how enamel thickness, tooth shape and existing fillings affect IPR;
  • how attachments and contacts will be finished at the end.

Space creation without hidden tradeoffs

IPR is one method of creating space. Expansion, distal movement, changing tooth inclination, extraction or restorative reshaping may also be considered. The correct choice depends on the amount of crowding and biological boundaries.

Ask why IPR is preferred and what would happen if it were not performed. The explanation should connect the procedure to the space plan, not merely say that the software requested it.

The appropriate option can change after an examination. Use this comparison to prepare questions, not to self-prescribe treatment.

What the appointment and aftercare involve

Attachment placement typically involves cleaning and drying teeth, bonding composite through a template and removing excess material. IPR may use strips, discs or other calibrated instruments. Temporary pressure or roughness can occur, but persistent sharp edges or gum injury should be reported.

Brush carefully around attachments and floss contacts as instructed after IPR. Aligners may feel tighter immediately after attachments are placed because they engage more actively.

  • Ask to review expected attachments before consenting.
  • Confirm how IPR amounts are measured and recorded.
  • Report an attachment loss or tray that no longer seats fully.
Take this with you

Questions to take to a consultation

  1. Which attachments are planned and why?
  2. Where and how much IPR is proposed?
  3. Are there fillings or enamel limits at those contacts?
  4. What happens if an attachment comes off?
  5. How are attachment removal and enamel finishing handled?
Common questions

Questions patients ask

Are Invisalign attachments visible?
They are tooth-coloured but can be seen, especially on front teeth or when light reflects off the aligner.
Does IPR damage teeth?
It is a clinical procedure that should be measured and prescribed within safe limits. Ask the provider to explain the amount and indication.
Do all Invisalign patients need IPR?
No. It depends on the space plan, tooth shape, bite and treatment goals.
Primary references

Sources used for this guide

External sources can change. Verify current regulatory and product information at the linked publisher.

Clinical and emergency disclaimer

This website provides general education and does not diagnose, prescribe treatment or create a dentist-patient relationship. A licensed provider must examine the patient and review appropriate records. For pain, swelling, trauma, breathing difficulty, uncontrolled bleeding, infection or an appliance causing injury, contact a local dentist, treating provider or emergency service directly.