Can root canal treated be sensitive to heat and cold?

Yes, a tooth that has undergone root canal treatment can sometimes remain sensitive to heat and cold, especially if the tooth was still healing or if there are underlying issues, such as infection or inflammation. While the procedure typically alleviates pain, some patients may experience temporary sensitivity as part of the healing process. If the sensitivity persists or worsens, it's important to consult a dentist to rule out any complications.