If the pain is caused by dentin sensitivity, the crown will not hurt if you avoid contact with external stimuli. If the pain is caused by endodontitis, the crown will also hurt. 1. Tooth polishing clinically known as tooth preparation, if the preparation is not to the pulp cavity, just dentin exposure in the oral cavity, the emergence of hot and cold sensitivity, pain, usually wear temporary crowns or permanent crowns for protection. 2. If the preparation of the tooth affects the nerve, causing pulpitis, this pain will continue even after wearing a crown. Root canal treatment is needed before placing the crown. It is recommended to consult a professional doctor.