(Data from Procter & Gamble Safety study 2000045 [5.3% strips] and 2000143 [6% strips]. Note: The procedure used is only published as a book chapter (Whelton, 1996). The calculations are based on salivary flow of 0.3 ml/min. The numbers in parenthesis represent exposure based on the daily use of 4 strips.

Source: SCCP  Opinion on Hydrogen peroxide, in its free form or when released, in oral hygiene products (2007), p.46

Tooth Whiteners & Oral Hygiene Products containing hydrogen peroxide

Table 3.1: Summary of in vitro genotoxicity of hydrogen peroxide (IARC, 1999)

Table 3.2. Summary of in vivo genotoxicity of hydrogen peroxide (ECB, 2003)

Table 3.3. Incidence of gastro-duodenal lesions in C57BL/6J mice after receiving hydrogen peroxide in the drinking water (Ito et al., 1981)

Table 3.4. Incidence of duodenal tumours in 4 strains of female mice treated with 0.4% H2O2 in drinking water (Ito et al., 1984)

Table 3.5. Effect on gastro-duodenal carcinogenesis induced by MNNG (Takahashi et al, 1986)

Table 3.6: Hydrogen peroxide exposure in mouse dermal and hamster check pouch tumour promotion assays following initiation by with DMBA

Table 3.7: Summary of clinical studies using hydrogen peroxide toothpastes

Table 3.8: Adverse events in clinical trials with toothpastes containing up to 3% hydrogen peroxide (unpublished company data)

Table 3.9: Unfavourable reports received to marketed toothpaste with 0.75% hydrogen peroxide in the period 1995-1997(unpublished company data)

Table 3.10: Summary of human safety data of hydrogen peroxide in mouth-rinses

Table 3.11: Unfavourable reports received to marketed mouth-rinse with 0.75% hydrogen peroxide in the period 1995-1997 (unpublished company data)

Table 3.12. Available hydrogen peroxide in the saliva during the first 30 and 60 minutes

Table 3.13. Concentration of hydrogen peroxide in the strip, at the teeth, at the gingival, and in the saliva during the first 60 minutes.