Scaling can improve the symptoms of bad teeth to some extent. Scaling, the technical term for supragingival scaling, is the most effective way to remove gingival plaque and tartar by removing tartar, plaque and other substances from the gums with medical instruments and polishing the tooth surface to delay plaque and tartar redeposition. Scaling can reduce the inflammatory condition of gingivitis and periodontitis, thus reducing the symptoms of tooth odor. However, scaling alone cannot cure the primary diseases such as periodontitis and dental caries, and further professional treatment should be received.