1. Product Overview
The ULTRADENT Opalescence 20% Teeth Whitening Refill Kit provides carbamide peroxide gel for use with customized take-home whitening trays. This gel is formulated with 20% water to help prevent dehydration and features a sticky, viscous consistency to ensure the gel and tray remain securely in place. It is designed to be easily customizable for individual patient situations.
Key features of the Opalescence whitening gel include:
- Contains PF (potassium nitrate and fluoride) for reduced sensitivity.
- Effective in helping reduce shade relapse compared to other tooth bleaching products.
- Composed of at least 20% water to prevent dehydration.
- Sticky, viscous gel prevents migration to soft tissues and keeps trays secure.
- Vegan, gluten-free, and kosher certified.
2. Safety Information and Ingredients
Important Safety Precautions:
- Do not use without customized take-home whitening trays.
- Avoid contact with eyes and mouth.
- Do not swallow the gel.
- Keep out of reach of children.
- If irritation or sensitivity occurs, discontinue use and consult a dental professional.
- Do not use with LED light.
- Keep away from heat and open flames.
- Store in a cool, dry place.
- For external use only.
Ingredients:
- Glycerin
- Water (Aqua)
- Carbamide Peroxide (20%)
- Xylitol
- Carbomer
- PEG-6
- Sodium Hydroxide
- Piperita Oil
- EDTA
3. Setup
Before using the Opalescence 20% whitening gel, you will need custom-fitted dental trays. These trays are specifically designed to fit your teeth and can be obtained from your dentist. Retainers from previous orthodontic work may also be used if they fit properly.

Image: Four Opalescence whitening gel syringes in two blister packs.
Preparing the Gel Syringe:
- Carefully twist off the tip of the gel syringe.
- Retain the removed tip as it serves as a cap to keep the gel fresh for future use.
Video: Official Opalescence Gel (How To Use) guide, demonstrating proper application and care for the whitening gel and trays.
4. Operating Instructions
Ensure your teeth are clean before applying the gel. Brush your teeth thoroughly to provide a clean surface for the gel to adhere to.

Image: Step-by-step guide for applying whitening gel to a custom tray and placing it over teeth.
Applying the Gel to Trays:
- Place a continuous bead of gel approximately halfway up the facial side of the tray, from molar to molar.
- Alternatively, place a rice-sized amount of gel on the front of each tooth compartment of the tray, about halfway up the tooth.
- Avoid applying gel to teeth with crowns, as porcelain crowns cannot be whitened.
- One syringe of gel is typically sufficient for multiple applications. Cap the syringe after use to preserve freshness.
Wearing the Trays:
- Carefully insert the loaded tray into your mouth, ensuring it is fully seated over your teeth.
- Gently press the tray to adapt it to the sides of your teeth.
- If any excess gel squishes onto your gums, gently clean it off with a soft toothbrush or a tissue.
- Wear the 20% carbamide peroxide gel for 2-4 hours per day. Consult your dental professional for specific wear times if you have other concentrations.

Image: Before and after comparison of teeth, illustrating whitening results.
5. Maintenance
After the recommended wear time:
- Remove the trays from your mouth.
- Rinse your mouth to remove any residual gel. Do not swallow the rinsed gel.
- Clean the whitening trays with a soft toothbrush and warm water.
- Store the clean, dry trays in a clean, dry case provided by your dentist.
6. Troubleshooting
Tooth Sensitivity:
- You may experience a tingling sensation or notice small white spots on your gums. This is normal and typically resolves. If gel squishes onto gums, use less gel next time.
- If sensitivity occurs, consider using a lower concentration of carbamide peroxide gel (e.g., 10% or 15%) for a longer duration, as this can help reduce sensitivity.
- Brushing your teeth with Opalescence Sensitivity Relief Whitening Toothpaste before and after whitening can also help reduce sensitivity.
- You can take days off from whitening to give your teeth a break. For example, whiten every other day or every three days, depending on your comfort level.

Image: Opalescence Whitening Toothpaste for sensitivity relief.
7. Specifications
| Feature | Detail |
|---|---|
| Product Name | Opalescence 20% Teeth Whitening Refill Kit |
| Brand | ULTRADENT |
| Model Number | 5402 |
| Active Ingredients | Carbamide Peroxide (20%) |
| Item Form | Gel |
| Included Components | Syringe, Gel (4x 1.2 ml Syringes) |
| Flavor | Unflavored |
| Material Features | Vegan, Gluten Free, Kosher |
| Age Range Description | Adult |
| Item Weight | 0.03 Kilograms |
| Manufacturer | Ultradent |
8. Warranty and Support
For warranty information, product support, or to address any concerns not covered in this manual, please contact ULTRADENT customer service directly. You can typically find contact details on the product packaging or the official ULTRADENT website.





