Lily had a very nice, because the two front teeth grow, startled her mother, her mother appears, Lili no teeth before permanent teeth after not only white, but think big teeth than the previous lot, the as the two door panels, ugly, Lily also appears beautiful than before. In fact, Lily's mother if the law of the permanent teeth look, they will not complain.
The original size of the teeth, usually with the human skull, jaw, mouth proportional. Child-hour, head, jaw, mouth small, and the adult skull, jaw, mouth large, and thus a corresponding volume of permanent teeth is relatively large. Tooth in the jaw teeth are formed within the development. Eruption in the mouth, the crown is no longer increasing, and often as brushing and Dental Equipment chewing food, small friction and every day. Just a new look for the larger permanent teeth, and this is head comparison, and also not human visual habits. But with age, head and facial also increased to a certain extent, together with the Master's vision is also used, then the new head is not commensurate with the permanent teeth sprouting phenomenon will disappear.
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