I have buy a Teeth Whitening Kit (with 16% carbamide peroxide). Now, four days ago i starting first with the Kit. I have no Gum irritations or pain, etc. (only the first day i feel a little irritation when i drink cold milk ...) All fine. Also, my teeths are in good health. And i followed the procedure exactlly ( time of whitening, amount of Gel, etc.) But this is my question; I notice a shine "transparency / gray" on my teeth after a few whitening applications. But this only most, not all, at the Edges on the teeths. Also, this effect is not on all bleached teeths. Only, for example, on upper front teeths. Is this normal ? Will the "gray" turning into white when i continue
with the whitener applications ? And, why the teeths are uneven white? (the mouthpiece is from a Dentist made) so i think it's not the problem with little Gel. i have now first stopped the whitening process. I'm not want "gray shine" teeths .. hehe ... i don't find any informations about this ... ( only the standard problems -> gum irritations, Hot/cold irritations, etc. ) Can someone help me with this question ?

What kind of light are you viewing the tooth with? It is normal for the edges of the front teeth (incisors) to look a little bluish at the edge. In fact, all natural teeth have a gradation of color--usually more yellowish at the gumline. Some ceramists even use a bluish cast at the edge of porcelain teeth to give them a more translucent appearance.

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