[header] How to cope with teeth whitening sensitivity [title] Brush with a desensitizing toothpaste. [step] At least 10 days before your treatment, start brushing three times a day with a desensitizing toothpaste. Sensodyne and colgate sensitive are two good options. 
These toothpastes help to block pain signals from the tooth surface to the inner nerve. [substeps] Look for gc tooth mousse, which has an active ingredient called cpp acp that works very well to remineralize enamel.