Your Toothpaste Matters
July 20, 2023
Think toothpaste is just toothpaste? Think again! The kind you use matters and here is why and what to look out for with your next trip to the store.


I Love my Smile

Toothpaste matters!

Abrasiveness is ranked by an RDA scale (relative dentine abrasion)

The outer surface of our teeth is called enamel.  It is the hardest substance in the human body but can be worn down by hard toothbrushes, aggressive brushing techniques, abrasive toothpaste or acidic foods.  Worn enamel can expose the softer layer beneath, called dentine resulting in tooth sensitivity.  This layer is much softer than enamel and wears even quicker once exposed.

Unfortunately, toothpaste companies do not put RDA information on their packaging, so you must be informed and use toothpaste appropriately.  The higher the RDA score, the more abrasive a toothpaste.  Toothpaste in the low (0-70) to medium (70-100) scale is recommended.  To be FDA-approved, the RDA score needs to be 200 or lower.  It should be noted that many whitening toothpaste have a high RDA.

People with full mouth crowns, already sensitive teeth or signs of enamel/ dentine wear should opt for a low abrasive toothpaste.  Acrylic dentures should not be cleaned with toothpaste.  If a whitening toothpaste is required, it should be used lest often or a low-abrasive brand should be chosen instead.  Only a pea-sized amount of toothpaste should be used with a soft bristle brush.  Your brushing technique is also essential so visit your hygienist for help and further recommendations.

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