Dental crowns next to the tooth pain may be tooth decay or gingivitis caused. Dental crown restoration of neighboring teeth pain is mostly seen in the tooth itself caries, bacterial infection close to the nerve pain reaction, oral examination can be seen in the tooth itself has a carious cavity, or dental film can be seen neighboring caries. Dental treatment is needed, either direct filling or root canal treatment to relieve pain. It may also be a sign of gingivitis. Crown restoration destroyed the contact relationship with the neighboring teeth, food impaction between the two teeth, time induced redness, swelling and bleeding of the gums, tooth pain, the need for gingival medication to relieve. Tooth pain may be caused by its own caries, but also may be the destruction of neighboring points triggered by gingivitis, the need for timely access to the dentist.