Ask the dentist: What’s the best toothpaste?

Monthly column by Dr. Derek Baram, Specialist Orthodontist, Director of Central Smile, and Founder of Braces & Faces

What’s the best toothpaste?

There are few key factors when choosing toothpastes.

(1) Fluoride: this is key in reducing cavity prevalence. Standard adult toothpastes contain 1000 parts per million (ppm) of fluoride. Higher fluoride toothpastes containing 1500 ppm have superior cavity preventive effects.
(2) Abrasiveness: a toothpaste abrasive chart has been developed and is available online for consumers to check. Plain water is the least abrasive followed by baking soda. Generally sensitive toothpastes or gels are the least abrasive and whitening toothpastes are the most abrasive. Therefore are not recommended for daily use.  

Baking soda is a good alternative to toothpastes, as it’s alkaline, less abrasive, low cost and has a mild whitening effect. However, without fluoride it is less effective at preventing tooth decay. 

When should I use toothpaste for my child?

As soon as the first tooth appears in the mouth. Most dental associations recommend 1000 ppm for all children, even under 3 years of age.  

It’s important to supervise children during their brushing. To ensure they are doing it properly and spitting the toothpaste after brushing. Supervision of brushing till at least age 7, until they can do it well enough themselves has shown to be very effective and reducing the risk of developing cavities. 

How much toothpaste should I use for my child?

< 3 years: smear or rice grain size 

3-6 years: pea-sized

Read more: Ask the dentist: Is there fluoride in Hong Kong tap water?