Size: 16*13*4cm
Step 1: Clean the tooth surface
Step 2: Apply gums. Light curing 2min
The third step: smear whitening agent, cold light for 8 minutes.
Step 4: remove the whitening agent, and then coated with a new layer of whitening agent, cold light for 8 minutes.
Step 5: Repeat the fourth step, a total of cold light irradiation 3 times (8 minutes each time).
Step 6: remove the treatment items, warm water mouthwash.
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