Pre-Bleaching Instructions



  1. Two weeks before bleaching brush teeth normally with a desensitizing toothpaste like Sensodyne, Crest Sensitivity, Bulter sensitivity or any toothpaste containing fluoride and 5% potassium nitrate. The new generation of remineralizing toothpastes such as Dr. Collins Restore Toothpaste also addresses sensitivity and is highly recommended for both before and after bleaching.
    • We highly recommend you just bleach the top teeth first i.e. one tray at a time only and also use a low strength percentage of bleaching gel. Use 10% carbamide peroxide (CP) to start.
  2. After brushing for a few days, wear your EMPTY bleaching trays alone for a few hours or even over night.
  3. After wearing the empty trays place Dr. Collins Desensitizing gel in the tray for 1 hour before bleaching. Alternatively some dentists recommend placing SLS-free (foam free) desensitizing toothpaste (original Sensodyne) in the tray and wear at night or during the day a few times..
  4. After comfortable with trays alone or with toothpaste, place the bleaching material in the tray instead of the toothpaste. Please refer to the bleaching instructions:

  1. Continue brushing teeth normally with Dr. Collins Restore Toothpaste or any desensitizing toothpaste containing fluoride and potassium nitrate 5% (Sensodyne, Crest) while bleaching.

  2. Repeat the cycle daily. If no problem with sensitivity, you may replace 10% CP with a higher concentration to possibly shorten the bleaching time.
  3. If you have sensitivity after bleaching begins, do some of the following:
  • Skip a night/day or two of bleaching, and start again.
  • Change from night wear (using 10% CP to day wear if not already doing so, i.e. bleach for less time. Start with 30 minutes and increase the wearing time if you experience no sensitivity.
  • Most effective is to place Dr. Collins Desensitizing Gel inside the tray after bleaching. Do NOT mix with bleaching gel.
  • Alternate wear times of tray, with desensitizing material in one time period, and bleaching material the next.

What you need to know about tooth bleaching.

Whitening FAQs

Dr. Collins Desensitizing Gel

Dr. Collins Desensitizing Gel
1 x 5ml pre-filled syringe.

Recommended for use with all types of tooth bleaching.