My daughter and I chatted recently to an adviser for infant dentistry. We were interested to hear hew views on cleaning toddlers' teeth as my 18 month old granddaughter has been using her toothbrush for quite a while now. The adviser told my daughter that she should make sure my granddaughter had her teeth brushed twice per day and should be held down to ensure her teeth were brushed properly. Whilst I am fully aware of the need for good dental hygiene starting at an early age, (both my adult daughters have only one filling each), I certainly didn't hold them down to give their teeth a brush. Is this acceptable or AIBU?