During the growth of teeth, people, especially children under the age of 8 and pregnant
women, are easily to have teeth colored when taking tetracyclines (such as tetracycline,
oxytetracycline, doxycycline, etc.), which is called tetracycline stained teeth. This is
because tetracyclines will bind to calcium ions in dental tissues and stable tetracycline
calcium salts form. The discoloration will gradually get worse with age and tend to be
stable after 18 or so.
Dental fluorosis is mainly caused by excessive fluoride in drinking water. People with
mild symptom have opaque and chalky teeth; People with moderate symptom have
yellow or brown-yellow spots on the teeth surface; People with severe symptom have
incomplete enamel along with discoloration.
Pigmented teeth are ideal for cold-light teeth whitening treating. If people smoke, drink
tea/coffee or eat food with soy sauce for a long term while keeping a bad teeth cleaning
habit, the pigments in these things will gradually deposit and penetrate into the deep part
of their teeth, thus make teeth surface yellow and black. Like ordinary washing cannot
make clothes as white as before after long time dyeing, ordinary teeth whitening method
cannot make stained teeth as white as before, too.
1. Connect the cold-light controller with an adaptor (not included) via the type-c
charging cable.
2. Plug into the power supply. The LCD screen will light up and the battery symbol will
scroll during charging.
3. The solid battery symbol represents the charging is finished, which usually takes
Note -- The battery may be exhausted after long-distant transport. Please fully charge the
controller before first time use.
1. Brush and rinse; make your oral clean and teeth dry.
2. Open the teeth tray case and take the cold-light teeth whitening tray out. Then insert
the type-c port into the cold-light controller.
3. Unscrew the lid of the teeth whitening gel. Do not discard the lid for future use.
Rotate the bottom of whitening gel clockwise until the gel overflows into the brush head.
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