Yes mommy. Lahat daw kasi ng citrus fruits at mayrong citric acid na nakakapagpa-tanggal ng enamel ng teeth natin. At yung lemon, mas madami syang citric acd compared sa ibang citrus fruits.
Yes, wag naman umabot 15 minutes. I've read before na yung average brushing time should be 2-3 minutes only.