Table 1.

Description of experimental gels

Material	Manufacturer	Composition
Epigallocatechin-3gallate 10%		Hydroxyethylcellulose, propylene glycol, methylparaben, Imidazolidinyl urea, deionized water and 10 μM EGCG.
Sodium fluoride 1.23%	Company F&A Pharmaceutical Laboratory LTDA-São Paulo, Brazil	Hydroxyethylcellulose, propylene glycol, methylparaben, Imidazolidinyl urea, deionized water and 1.23% NaF.
Epigallocatechin-3 gallate 10% and sodium fluoride 1.23%		Hydroxyethylcellulose, propylene glycol, methylparaben, Imidazolidinyl urea, deionized water and 10 μM EGCG and 1.23% NaF.