toothbrush for little ones

baby ziyi is definitely a late teether. at 10 1/2mths old she only has 1/4 tooth out. i bought her toothbrush from Pigeon. it comes in a pack of 3, meant for different stages. i've not started brushing her tiny tooth yet, coz i'm still using gauze to clean her mouth. once her tooth is fully out, i will have to start brushing it for her, hmm, wonder if i need to use toothpaste too??