I have been told that it's better for littlies to have a gap in their front teeth, it means there is more room for movement when their adult teeth come through and that they are less likely too have crooked front teeth (from them pushing in on each other).
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spot on!!! tis much better this way!!!
baby teeth generally start to move around 5 to accommadate the adult teeth, so you may find this happens with the rest when shes older!!