Whether or not a large gap can be repaired depends largely on the cause of the gap. Most of them can be repaired. 1. If the gap is caused by periodontal disease, there may be gum recession, root exposure, which is generally difficult to repair large gaps, just need to actively treat periodontal disease. 2. If the gap is caused by neighboring caries, it can be repaired. Because the anatomical structure of the neighboring teeth may be destroyed, so through the filling treatment, inlay treatment, porcelain crown restoration treatment, you can restore the normal anatomical structure of the teeth, thus improving the degree of gap between the teeth. Large gaps can also be remedied through restorative dentistry and orthodontic techniques. If it is only a large gap between individual teeth while the other teeth are more normal, the excessive gap can be repaired with resin materials from an oral professional; veneers are stronger and have a better color texture compared to resin; and full crowns wrap around the entire tooth to restore a normal contact relationship.