Invisalign aligners are designed to be durable and flexible, but under certain conditions, they can crack or break. Whether it happens while eating, cleaning, or simply removing them, a cracked Invisalign tray can interrupt your treatment progress and raise concerns about next steps.
At McLevin Dental Clinic in Scarborough, we help Invisalign patients navigate issues like cracked or damaged trays quickly and effectively. This guide outlines exactly what you should do if your aligner cracks and how to prevent it from happening again.
Common Causes of Cracked Invisalign Trays
Cracks in aligners can occur due to:
Removing the trays too forcefully or unevenly
Biting down while trays are in place
Using hot water when cleaning (which warps the plastic)
Wearing trays beyond the recommended timeline
Accidental damage during storage or transport
Grinding or clenching teeth during sleep
Understanding how damage occurs helps you avoid unnecessary setbacks in your orthodontic treatment.
Identifying the Severity of the Crack
The first step after noticing a crack is to evaluate the extent of the damage:
Hairline Crack: A small fracture that doesnt affect the fit or function of the tray
Partial Break: A larger crack that affects one side or the biting edge but the tray still fits snugly
Full Break or Split: The tray has split into two or more pieces or can no longer be worn
How you respond depends on the severity of the damage and how long youve already worn the current aligner set.
Step-by-Step: What to Do When Your Invisalign Tray Cracks
Step 1: Continue Wearing the Tray (If Possible)
If the crack is minor and the aligner still fits securely:
Continue wearing it as instructed
Monitor for increased discomfort or movement
Do not attempt to fix it with glue or tape
Wearing a cracked but intact tray for a day or two may be acceptable while you wait for guidance from your dental provider.
Step 2: Switch to Your Previous or Next Set (If Instructed)
Depending on where you are in your treatment schedule:
If youve worn your current tray for more than 10 days, your dentist may advise you to move on to the next set early
If youve worn it for fewer than 5 days, you may be asked to return to your previous set to maintain tooth positioning
Only make this decision after contacting your dentist or orthodontist.
Step 3: Contact Your Invisalign Provider Immediately
Reach out to McLevin Dental Clinic or your provider as soon as the crack is noticed. Provide the following details:
Which tray number you are on
How many days youve worn it
Where the crack is located
Whether the aligner still fits properly
If you have your previous or next trays available
With this information, we can determine whether to reorder your current tray or adjust your wear schedule.
Step 4: Store and Protect the Cracked Tray
Even if you are no longer wearing the cracked tray, do not discard it.
Clean it gently with cold water and mild soap
Store it in its protective case
Bring it to your dental appointment for inspection
Having the broken tray helps your dentist assess the damage and make the most informed decision on treatment continuity.
Step 5: Avoid DIY Repairs
Do not try to glue, tape, or melt the tray back together. This can:
Alter the shape of the aligner
Irritate your gums or teeth
Introduce harmful chemicals into your mouth
Interfere with tracking and pressure on teeth
Always leave repairs and adjustments to your Invisalign provider.
Tips to Prevent Invisalign Tray Damage
You can reduce the risk of cracked trays with these preventive habits:
Remove trays gently using even pressure on both sides
Never eat or drink (other than water) while wearing aligners
Store them in a protective case when not in use
Use cool or lukewarm water only when cleaning
Avoid dropping or placing heavy items on your aligner case
Ask about a nightguard if you grind your teeth
Being careful with your trays helps ensure your treatment stays on track without unnecessary delays or added costs.
When a Replacement Aligner Is Necessary
A new tray may be needed if:
The crack compromises the fit or pressure
The tray causes irritation or pain
Your dentist recommends staying on the same stage
You have multiple trays still left in your treatment cycle
Replacement trays can usually be delivered quickly, especially when reported immediately. Delaying notification may extend your treatment timeline.
Why Acting Quickly Matters
Delaying action after a tray cracks can:
Slow tooth movement
Cause teeth to shift in undesired directions
Result in additional treatment time
Lead to discomfort or gaps in tracking
Immediate communication with your provider helps you avoid these complications and keeps your Invisalign treatment progressing smoothly.
Why Choose McLevin Dental Clinic for Invisalign Support
At McLevin Dental Clinic in Scarborough, we provide:
Fast response to Invisalign emergencies
Aligner inspections and reordering services
Customized advice based on your treatment stage
Guidance on switching trays or repeating a step
Ongoing monitoring to ensure alignment success
Our team is experienced in Invisalign care and dedicated to helping you achieve a perfect, healthy smile with minimal disruption.
To Conclude
Cracked Invisalign trays are a common but manageable setback. With prompt action, proper handling, and guidance from your provider, you can stay on track without compromising results. Never try to repair a tray on your own, and always consult your dentist before switching aligners.