Toothpaste Abrasion

Toothpaste can be good and bad.  Unfortunately the better it is at removing stain, the better it is at removing enamel also.  Stay away from the high abrasive toothpastes as they can remove the luster and polish of porcelain veneers and crowns and dull that beautiful smile. Also majority of tooth sensitivity to temperature can be attributed to excessive tooth wear at the gum-line, to which toothpaste choice is a major contributing factor. “I’ll brush harder to whiten teeth better” is a common motto leading to excessive tooth wear and abrasion without a visible effect of the “whitening”.

The American Dental Association (ADA) has adopted a standardized test. Basically, extracted human teeth are irradiated with mild neutrons, mounted and stripped of enamel. The teeth are then inserted into a brushing machine and brushed at a constant pressure and stroke speed. The rinsewater is then measured for its radioactivity and recorded. Thus after a few calculations, a 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. Other factors that are taken into consideration is the size, quantity, and surface structure of the abrasive itself.

The RDA table:
0-70 = low abrasive
70-100 = medium abrasive
10-150 – highly abrasive
150-250 = regarded as harmful limit
*for brands not listed below please search the internet
Dentifrice brand and variety RDA Manufacturer
straight baking soda 7 Church & Dwight
Arm & Hammer Tooth Powder 8 Church & Dwight
Weleda Salt Toothpaste 15 Weleda
Swissdent Nanowhitening Toothpaste 25 Swisssdent Cosmetics AG
Weleda Plant Tooth Gel 30 Weleda
Elmex Sensitive Plus 30 Elmex
Arm & Hammer Dental Care 35 Church & Dwight
Sensodyne Pronamel for Kids 35 GlaxoSmithKline
Sensodyne Pronamel 35 GlaxoSmithKline
Weleda Children’s Tooth Gel 40 Weleda
Swissdent Pure Toothpaste 40 Swisssdent Cosmetics AG
Swissdent Extreme Whitening Toothpaste 40 Swisssdent Cosmetics AG
Curasept ADS 705 Toothpaste 40 Curaprox
Arm & Hammer Advance White Baking Soda Peroxide 42 Church & Dwight
Squigle Enamel Saver 44 Squigle
Oxyfresh Original Formula Toothpaste 45 Oxyfresh
Arm & Hammer Dental Care Sensitive 48 Church & Dwight
Arm & Hammer Peroxicare Tartar Control 49 Church & Dwight
Tom’s of Maine Sensitive (given as 40′s) 49 Tom’s
Curaprox Enzycal 50 Curaprox
Arm & Hammer Peroxicare Regular 52 Church & Dwight
Rembrandt Original (RDA) 53 Rembrandt
Arm & Hammer Dental Care PM Bold Mint 54 Church & Dwight
Tom’s of Maine Children’s, Wintermint (given as mid-50′s) 57 Tom’s
Supersmile 62 Supersmile
Rembrandt Mint (‘Heffernan RDA’) 63 Rembrandt
Biotene Regular 63 Glaxo Smith Kline
Colgate Regular 68 Colgate-Palmolive
Colgate Total 70 Colgate-Palmolive
Arm & Hammer Advance White Sensitive 70 Church & Dwight
Colgate 2-in-1 Fresh Mint (given as 50-70) 70 Colgate-Palmolive
Sensodyne 79 Colgate-Palmolive
AIM 80 Unilever
Close-Up 80 Unilever
Colgate Sensitive Maximum Strength 83 Colgate-Palmolive
Biotene Sensitive 85 Glaxo Smith Kline
Aquafresh Sensitive 91 Colgate-Palmolive
Tom’s of Maine Regular (given as high 80′s low 90′s) 93 Squigle (Tom’s)
Rembrandt Plus 94 Rembrandt
Plus White 94 Indiana study
Crest Regular (possibly 99) 95 P&G (P&G)
Natural White 101 Indiana study
Mentadent 103 Squigle
Arm & Hammer Sensation 103 Church & Dwight
Sensodyne Extra Whitening 104 Colgate-Palmolive
Colgate Platinum 106 Indiana study
Arm & Hammer Advance White Paste 106 Church & Dwight
Crest Sensitivity Protection 107 Colgate-Palmolive
Colgate Herbal 110 Colgate-Palmolive
Amway Glister (given as upper bound) 110 Patent US06174515
Aquafresh Whitening 113 Indiana study
Arm & Hammer Advance White Gel 117 Church & Dwight
Arm & Hammer Sensation Tartar Control 117 Church & Dwight
Close-Up with Baking Soda (Canadian) 120 Unilever
Colgate Whitening 124 Indiana study
Crest Extra Whitening 130 Indiana study
Ultra brite (or 120-140) 133 Indiana study (or Colgate-Palmolive)
Crest MultiCare Whitening 144 P&G
Ultra brite Advanced Whitening Formula 145 P&G
Colgate Baking Sode & Peroxide Whitening (given as 135-145) 145 Colgate-Palmolive
Pepsodent (given as upper bound) 150 Unilever
Colgate Tartar Control (given as 155-165) 165 Colgate-Palmolive
Arm & Hammer Dental Care PM Fresh Mint 168 Church & Dwight
Colgate 2-in-1 Tartar Control/Whitening or Icy Blast/Whitening (given as 190-200) 200 Colgate-Palmolive
recommended limit 200 FDA
recommended limit 250 ADA (USA)
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