Hello, we just noticed that my lil one have a small groove in-between his front teeth . He does brush once morning daily with Johnson's baby brush and mamaearth/ Colgate toothpaste for kids...with half of pea size amount paste. I'm really worried now because we can't go out for dental checkup or cleaning or filling...how to stop or reverse the decay. Can we do anything at home other than starting brushing at night too?? He does drink water post milk at night...please suggest how to take care or reverse the effect.