How long to wear teeth whitening trays ?

Dr. Rich lists the recommended wear times for carbamide peroxide based teeth whitening gels and hydrogen peroxide based teeth whitening gels.
Recommendations from Ultradent for carbamide peroxide based gels:
45% 15 to 30 minutes
35% 30 to 60 minutes
20% 2 to 4 hours
15% 4 to 6 hours
10% 8 to 10 hours or overnight
Recommendations from Phillips Zoom for hydrogen peroxide based gels:
6% 30 minutes
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[@actowing4958]

Thank you so much. My dentists assistant has a deep accent and I really can’t understand her to well but I’m not the type of person to complain or even tell her that I don’t understand lol I just nod my head a thank her 😂 I had no idea what to do other than not using to much gel for every application. Very useful information ✌🏽🙏🏽🫡

[@VeryNiceSmileDental]

Glad it was helpful! Thank you very much for watching!

[@tommacardin]

Hello doctor, I apologize for my English. I have a question, I got 7 front crowns color bl3 (my doctor insisted that they were too white but I wanted that color anyway), turns out he was right 🙈, now they are cemented and I can’t do much about it, is it possible somehow to make them a little bit more yellow (to match at least a little my natural teeth)? I don’t care if it’s a temporary solution, I’m planning to redo everything in a couple of years anyway. Thank you very much!

[@VeryNiceSmileDental]

Hi, no the only way to change the color of the porcelain crowns is to replace them. I talk about it more in this video, czcams.com/video/6zfXTChMc2M/video.html

[@CharlieWallace-mi1km]

Hiya, I’ve just finished my Invisalign and now onto my retainers which I just wear at night. My dentist has provided me a free teeth whitening kit which he told me to use at just night time when I go sleep. But I’ve got a lot of saliva and keep wanting to spit. It’s my first time trying tonight. How long until I will see a difference?

[@VeryNiceSmileDental]

Hi, you can swallow your spit. The trays should hold the whitening gel against your teeth. Most people will notice a difference in the color of their teeth after a couple of days of using the whitening.

[@claire99ism]

I'm using the teeth whitening tray. I've noticed it's making the tips of some teeth very white, and my teeth now look worse. Will this rectify itself, I've only done this for 3 days.

[@VeryNiceSmileDental]

Hi, I have noticed this when I whiten my own teeth. It usually evens out a few days later. Have your dentist take a look to make sure everything is going as planned.

[@claire99ism]

@@VeryNiceSmileDental Thank you.

[@mirapilates]

I accidentally wore my opalescence Carbonide Peroxide 10% for two months. Is this damaging to my teeth?

[@VeryNiceSmileDental]

Hi, you wore your whitening trays for 2 months straight without removing them?

[@mirapilates]

@@VeryNiceSmileDental At night only.

[@VeryNiceSmileDental]

I've had patients with tetracycline staining who had to use the whitening trays daily for several months to whiten their teeth. I've also had a couple of patients over do the whitening. The incisal edges of their front teeth ended up becoming clear.