RDA‐1: Low abrasion, RDA < 40	RDA	REA‐1: Low abrasion, REA < 4	REA
Bamboo charcoal toothpaste mint Naturaline zahnpaste aktivkohle Curaprox white is black Zew for men toothpaste with charcoal	26 ± 3 27 ± 4 37 ± 6 38 ± 4	Curaprox white is black Naturaline zahnpaste aktivkohle Colgate natural extracts charcoal & white Zew for men toothpaste with charcoal Bamboo charcoal toothpaste mint Curaprox black is white	0 ± 0 0 ± 0 2 ± 1 2 ± 1 2 ± 1 3 ± 1
RDA‐2: Moderate abrasion, RDA 40–80		REA‐2: Moderate abrasion, REA 4–8
Curaprox black is white Colgate natural extracts charcoal & white Candida white black‐pearls EcoDenta black whitening toothpaste Natural toothpaste charcoal	42 ± 5 53 ± 4 53 ± 3 64 ± 4 67 ± 6	EcoDenta black whitening toothpaste Natural toothpaste charcoal	4 ± 4 5 ± 5
RDA‐3: High abrasion, RDA > 80		REA‐3: High abrasion, REA > 8
MyMagicMud whitening toothpaste Kemphor charcoal toothpaste Blackwood charcoal toothpaste	97 ± 11 99 ± 7 166 ± 9	MyMagicMud whitening toothpaste Blackwood charcoal toothpaste Kemphor charcoal toothpaste Candida white black‐pearls	9 ± 4 11 ± 4 12 ± 2 14 ± 3