Orono Dental Care

How do I use custom whitening trays?

1. Express one continuous bead of gel approximately 1/3 to 1/2 of the syringe.

2. Brush teeth before whitening. Place tray over teeth. Gently press tray to move gel into place. Pressing too firmly will force gel out of tray. Wear times will vary (see below).

3. Remove excess gel from gums using a soft toothbrush.

4. Clean tray with soft brush and warm water. Store tray in the case that came with your kit.

Here is a link to a step by step video.


Wear times vary depending on the strength of the whitening gel you use:

Opalescence 10% for 8–10 hours or overnight

Opalescence 15% for 4–6 hours

Opalescence 20% for 2–4 hours 

Opalescence 35% for 30 minutes


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