After scaling many people feel that the gap between their teeth has become larger, but in fact there is no need for any treatment, just observe. There is a certain gap right between two normal teeth, where there is direct contact between the adjacent surfaces of the teeth, and below the contact point of the adjacent surfaces is a triangular gap. In normal people, the triangular gap is filled by the alveolar bone and gums. If a lot of amount of tartar is formed in the neck of the teeth, it will stimulate the alveolar bone to shrink and the gums to recede with it. However, because the tartar fills this gap, the patient does not feel that there is a gap between the teeth. After the tartar is removed by scaling the teeth, the gap is exposed because the tartar is removed, but the alveolar bone and gums do not return to their original position and height, so there is a gap between the teeth.