Toothpaste Abrasion

For years, it was thought that the toothbrush was the main culprit in cervical tooth abrasion but it turns out that the problem lies in the toothpastes. We all have patients with cervical wear in the teeth and several speakers I have heard recently have addressed this problem. The ADA has adopted a standardized test for rating the relative abrasiveness of toothpastes. Extracted teeth are inserted into a brushing machine and brushed at a constant pressure and stroke speed. There is no wearing noted when no dentifrice is used. The abrasive component is toothpaste itself.
A Relative Dentin Abrasion (RDA) score or index is given to the toothpaste. Any value over 100 is considered to be abrasive. The ADA recommended limit is 250, whereas the FDA limit is 200. You may find this list from the ADA helpful in your practice.

The RDA Table:
0-70 = low abrasive
70-100 = medium abrasive
100-150 = highly abrasive
150-250 = regarded as harmful limit

Toothpastes / RDA Value

FDA Recommended Limit 200. ADA Recommended Limit 250


Straight Baking Soda 7
Arm & Hammer Tooth Powder 8
Arm & Hammer Dental Care 35
Oxyfresh 45
Tom’s of Maine Sensitive 49
Arm & Hammer Peroxicare 49
Rembrandt Original 53
CloSYS 53
Tom’s of Maine Children’s 57
Colgate Regular 68
Colgate Total 70
Sensodyne 79
Aim 80
Colgate Sensitive Max Strength 83
Aquafresh Sensitive 91
Tom’s of Maine Regular 93
Crest Regular 95
Mentadent 103
Sensodyne Extra Whitening 104
Colgate Platinum 106
Crest Sensitivity 107
Colgate Herbal 110
Aquafresh Whitening 113
Arm & Hammer Tarter Control 117
Arm & Hammer Advance White Gel 117
Close-up with Baking Soda 120
Colgate Whitening 124
Crest Extra Whitening 130
Ultra Brite 133
Crest MultiCare Whitening 144
Colgate Baking Soda Whitening 145
Pepsodent 150
Colgate Tarter Control 165
Colgate 2-in-1 Tarter Control/White 200