How can we help?
Tell us what's going on and we'll point you to the right place — call, email, or send a message and our team will get back to you within one business day.
Fit issue or adjustment
Something not right with your guard? Send us the details using the form below and we’ll start the Three-Attempt resolution process.
Reorder
Your impression is saved permanently — your next guard is made from the same model. Pick the guard you want and we’ll reuse the impression we already have on file.
Warranty claim
Your guard is covered for 1 year against defects in materials and workmanship — 6 months on the Comfort Guard. Email us your order number, what’s wrong, and a few photos and we’ll review it.
Returns and the 100-Night Guarantee
Not satisfied within 100 nights? See how the return process works before reaching out.
General question
About materials, the impression process, shipping, or anything else — check the FAQ first.
Call us
1-888-317-0724
Mon–Fri, 10am–4pm EST
Email us
info@sentinelmouthguards.com
Response within 1 business day
Send us a message
Include your order number and a clear description (with photos if it's a fit issue or warranty claim). Our team will get back to you within one business day.