A good start is to always use a mirror to apply the strips. Make sure the strip is in good contact with the teeth surface. If you experience that the strips still don’t stick properly, close your mouth and use your tongue to create some suction. The strips should stick better to the front and back, enclosing them to the treatment area. If you still have trouble getting the strips to stick, try leaving the strips out in room temperature (out of the outer pouch) for 5-10 minutes before application. 

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