Do you also have problems like tooth decay, or teeth that go numb when you eat ice cream or drink cold water? These are very annoying things, aren't they? So your doctor may have told you to use a special mouthwash for this kind of condition. We're talking about one of those today. This is called Acidulated Phosphate Fluoride.
What is this acidulated phosphate fluoride (APF)?
Simply put, this is not your average mouthwash you buy at the store. This is a medication prescribed by a doctor. Its main function is to prevent tooth decay and reduce sensitivity, or numbness, of the teeth and gums.
This mainly contains a mineral called fluoride . Just as we need calcium to strengthen our bones, fluoride is very important for strengthening our teeth, protecting our enamel, and preventing decay. This medicinal water works by directly providing the necessary fluoride to our teeth, strengthening them.
Things to tell your doctor before using this medicine
It is very important that your doctor is fully aware of your health condition before prescribing this medicine to you. Therefore, if any of the following apply to you, be sure to tell your doctor.
| Situation you need to report | Why is that important? |
|---|---|
| If you have dentures or other dental coverings made of porcelain or ceramic. | The acidic nature of this medicine can sometimes damage such substances, so it is important to inform the doctor about it. |
| If you have an allergic reaction to fluoride or other medications, foods, preservatives, or dyes. | This is essential to avoid the risk of an allergy. |
| If you are pregnant, trying to get pregnant, or are a breastfeeding mother. | It is very important to seek medical advice before using any medication during pregnancy and breastfeeding. |
How exactly do you use this?
For best results, it's important to use this exactly as your doctor recommends. Here are the steps to follow.
1. First, clean your teeth: Brush your teeth thoroughly using your regular toothpaste and rinse your mouth.
2. Measure the correct dose: Usually, the doctor will tell you to use 10 milliliters (10mL). Measure that amount using the measuring cup that comes with the medicine.
3. Rinse your mouth for a minute: Take the measured amount of medicine and swish it around your mouth for about a minute , moving it around your entire mouth, including between your teeth.
4. Spit Out: After a minute, spit out all the medicated water in your mouth.
5. Wait 30 minutes: After rinsing your mouth, do not eat, drink, or rinse your mouth with water again for at least 30 minutes . This is when you will get the best results from the medicine.
Very important: Do not swallow this! Remember, this is not something to drink, it is something to rinse your mouth out.
It is usually used once a day, and it is best to do it at night before going to bed.
Be careful when giving to small children.
Doctors sometimes recommend this medicine for children over the age of 6. However, if you do, you should definitely use it under the supervision of your parents . Make sure to clearly teach your child how to swish it around in their mouth and spit it out, without swallowing it.
Possible side effects when using the medicine
Like any medication, this one can cause minor side effects in some people. It's important to know what they are.
| Notify your doctor immediately. | |
|---|---|
| Allergic reactions | Skin rash, itching, swelling of the face, lips, tongue or throat. |
| Tooth discoloration | Unusual stains or discoloration of the teeth. |
| If it persists or is bothersome, tell your doctor. | |
| Other minor effects | Indigestion or diarrhea, headache, mild soreness in the mouth or throat, nausea. |
Attention: If you accidentally swallow too much of this medicine, immediately contact the National Poisons Information Centre at the Colombo National Hospital. Or go to the Emergency Department (ETU) of the nearest hospital. Using more than the recommended daily dose can damage and discolor the tooth enamel.
A few more things to know
- If you miss a dose: If you forget to take this medicine one day, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take your next dose as usual. Never take a double dose.
- Other dental products: Ask your doctor before using other special dental products while using this medicine.
- Storage: Keep this medicine out of the reach of children and pets. It is best to store it at room temperature (between 20 and 25 degrees Celsius). Discard any expired medicine.
While this medicine can help protect your teeth, it is also important to continue to maintain good dental hygiene habits. That means brushing and flossing your teeth daily, and visiting your dentist on time for checkups.
Take-Home Message
- This is a medicated mouthwash recommended by a doctor, not a regular one. Use only on medical advice.
- Never swallow this. Always rinse your mouth before spitting it out. Supervise children, especially when giving them.
- Avoid eating or drinking for 30 minutes after use.
- Tell your doctor if you have any allergies, are pregnant, breastfeeding, or have porcelain/ceramic dentures.
- If swallowed by mistake or used excessively, call the National Poisons Information Center immediately or go to the ETU .
- If you notice any signs of allergy or a change in the color of your teeth, inform your doctor immediately.


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