Teeth that are uneven are generally not recommended to be ground down and should be orthodontically corrected. Smoothing your teeth may lead to enamel damage, which in turn can lead to tooth sensitivity or even other negative consequences. There is a layer of material on the surface of the teeth called enamel, which is a protective material, but has no sensory function, in the process of smoothing the teeth is likely to hurt the layer of material, so that the teeth lose protection, there will be tooth sensitivity, or even damage to the dentin or cause cavities, so it is not recommended to smoothen the unevenness of the teeth. Teeth uneven, the current common way is to wear braces to orthodontic, through this method can gradually improve the situation of uneven teeth, while the enamel damage is small. However, orthodontic treatment must be carried out in a regular dental hospital.