{"product_id":"internal-teeth-whitening-von-nicolas-dufey-claudio-gandarillas-und-fernando-pena","title":"Internal Teeth Whitening","description":"\u003cp\u003eThe aim of the present work was to compare spectrophotometrically the number of sessions for an effective color change with 100% carbamide peroxide, 37% and 35% hydrogen peroxide, through the Walking Bleach technique. This was an experimental study, in vitro, in parallel, with blind in the measurement of the effect and in the data analysis. Eighty-eight premolars extracted for orthodontic indication were used. These were endodontically treated and artificially pigmented with chromogens derived from blood decomposition products. They were randomly divided into 4 groups of 22 teeth (one group for each bleaching agent, plus a control group with distilled water). The treatment regimen for each group was 4 sessions with a separation of 4 days between each one. The baseline and post-treatment color was recorded using the Vita Easyshade V dental spectrophotometer, with which the colors were recorded in CIE L*a*b* color space. The values of the total color variation (SD) between the initial parameters and the different evaluation times were subsequently calculated.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9786206483878\"\u003e\u003ch3\u003eSpectrophotometric comparison of the number of sessions with hydrogen peroxide and carbamide peroxide\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9786206483878","offer_id":47138020360517,"sku":"9786206483878","price":54.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/f7108a1c-60c7-476b-b24e-d867d5004a18.png?v=1758608010","url":"https:\/\/shop.autorenwelt.de\/products\/internal-teeth-whitening-von-nicolas-dufey-claudio-gandarillas-und-fernando-pena","provider":"Autorenwelt Shop","version":"1.0","type":"link"}