A dental crown or cap is dental restoration that covers the tooth completely. Dental Caps are given to protect the tooth structures that have compromised strength to withstand chewing forces and can fracture under load. Reasons may be many why a tooth has become weak including decay, treatments or an accident.
To place a crown the tooth needs to be prepared and the amount of preparation depends on the material of crown. Metallic crowns need 0.5-0.75 mm of tooth reduction whereas others might need about 1.5 mm of tooth reduction.
After root canal treatment (RCT), the tooth gets dehydrated as the pulp is removed and becomes brittle. The tooth is anyway destroyed due to decay, and the treatment procedure further weakens it. . This treated tooth can fracture under chewing forces. Dental Cap (crown) is advised to prevent the fracture of the tooth.
