{"id":984,"date":"2026-06-29T21:47:59","date_gmt":"2026-06-29T19:47:59","guid":{"rendered":"https:\/\/oracleblog.mediweb.link\/conseils\/tooth-whitening-how-to-use-your-trays\/"},"modified":"2026-09-03T15:01:50","modified_gmt":"2026-09-03T13:01:50","slug":"tooth-whitening-trays","status":"publish","type":"conseil","link":"https:\/\/oracleblog.mediweb.link\/en\/advice\/tooth-whitening-trays\/","title":{"rendered":"Tooth whitening: how to use your trays"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Home tooth whitening, with custom-made trays and syringes of gel, gives excellent results provided you follow a few rules. Here is everything you need for effective, comfortable treatment.<\/p><h2 class=\"wp-block-heading\">Before and during the treatment<\/h2><ul class=\"wp-block-list\"><li><strong>Avoid smoking<\/strong> during the treatment and for 15 days afterwards.<\/li><li><strong>Avoid staining food and drink<\/strong> (coffee, tea, red berries, tobacco, red wine, spices, etc.) during the treatment and for 15 days afterwards.<\/li><li>If you experience sensitivity: <strong>take the trays out immediately<\/strong>, rinse, and wait 2 to 3 days before carrying on.<\/li><li><strong>Keep the syringes in the fridge<\/strong> and let them come back to room temperature before use.<\/li><\/ul><h2 class=\"wp-block-heading\">How to use the trays and the gel<\/h2><ol class=\"wp-block-list\"><li>Brush your teeth thoroughly.<\/li><li>Put the gel into the tray: <strong>one small drop per tooth<\/strong> is enough.<\/li><li>Fit the tray (custom-made for the upper and lower arch).<\/li><li>Remove any excess gel that has squeezed out onto the gums with your toothbrush.<\/li><li>On the <strong>first day<\/strong>: leave the tray in for 1 or 2 hours. If no sensitivity appears, wear it <strong>overnight<\/strong> on the following days.<\/li><li>In the morning, take the tray out, rinse it in cold water and rinse your mouth.<\/li><li>Apply a <strong>sensitivity toothpaste<\/strong> (Elmex Sensitive Professional) with your finger, massaging it into the enamel. Leave it for 3 minutes, then spit out (without rinsing).<\/li><li>Do not brush your teeth straight after removing the tray: wait 30 minutes.<\/li><li>Repeat for <strong>3 weeks<\/strong>.<\/li><\/ol><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Small white spots may appear during the treatment: they will fade a few days after the whitening ends.<\/p><\/blockquote><h2 class=\"wp-block-heading\">If you experience strong sensitivity<\/h2><p class=\"wp-block-paragraph\">If you feel strong sensitivity, do not wear the tray for 1 to 2 days, then start again with a shorter wear time. Always keep the syringes refrigerated.<\/p><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>If you have the slightest doubt about how to use the product or about the results, contact your dentist.<\/p><\/blockquote><h2 class=\"wp-block-heading\">Worth knowing before you start<\/h2><ul class=\"wp-block-list\"><li>A <strong>full examination and a professional clean<\/strong> are required before any treatment.<\/li><li>Whitening <strong>does not work on veneers, crowns or fillings<\/strong>: these may need to be redone afterwards.<\/li><li><strong>Yellow<\/strong> teeth respond better than greyish ones. Staining caused by tetracycline or fluorosis lightens less well.<\/li><li>The final shade loses a little brightness over the following 2 to 3 weeks: an <strong>annual top-up<\/strong> can be helpful.<\/li><li>The results last <strong>2 to 3 years<\/strong>, longer with good hygiene (avoiding tobacco, coffee and staining food).<\/li><li><strong>Not suitable<\/strong> during pregnancy or breastfeeding.<\/li><\/ul>\n<div style=\"padding-top:30px\">\n<h3>Further reading<\/h3>\n<ul>\n  <li><a href=\"https:\/\/oracleblog.mediweb.link\/en\/treatments\/tooth-whitening\/\">tooth whitening at the practice<\/a><\/li>\n  <li><a href=\"https:\/\/oracleblog.mediweb.link\/en\/advice\/treating-tooth-stains-with-icon\/\">treating stains with ICON<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Everything you need to know to use your whitening trays at home: the protocol, practical advice and how to handle sensitivity.<\/p>\n","protected":false},"featured_media":985,"template":"","conseil_cat":[26],"class_list":["post-984","conseil","type-conseil","status-publish","has-post-thumbnail","hentry","conseil_cat-aesthetics"],"acf":[],"_links":{"self":[{"href":"https:\/\/oracleblog.mediweb.link\/en\/wp-json\/wp\/v2\/conseil\/984","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oracleblog.mediweb.link\/en\/wp-json\/wp\/v2\/conseil"}],"about":[{"href":"https:\/\/oracleblog.mediweb.link\/en\/wp-json\/wp\/v2\/types\/conseil"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oracleblog.mediweb.link\/en\/wp-json\/wp\/v2\/media\/985"}],"wp:attachment":[{"href":"https:\/\/oracleblog.mediweb.link\/en\/wp-json\/wp\/v2\/media?parent=984"}],"wp:term":[{"taxonomy":"conseil_cat","embeddable":true,"href":"https:\/\/oracleblog.mediweb.link\/en\/wp-json\/wp\/v2\/conseil_cat?post=984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}