Can root canals cause any problems or complications?

Yes, while root canal treatment is highly effective in saving a damaged or infected tooth, it can occasionally lead to some problems or complications. After the procedure, patients may experience mild pain or swelling around the treated tooth, which usually resolves within a few days, but persistent discomfort can indicate an underlying issue. Sometimes, infection may recur if bacteria remain in tiny canals or the filling is not fully sealed. Tooth fractures can occur because a treated tooth may become more brittle over time without a crown or proper restoration. Additionally, allergic reactions to materials or medicaments used during the procedure are rare but possible. Nerve damage or lingering sensitivity can happen if the surrounding tissue is irritated. In some cases, an abscess or inflammation may develop if the treatment fails or the tooth is not properly cared for afterward. Overall, most complications are preventable with careful dental techniques, proper aftercare, and timely follow-ups, ensuring the long-term success of a root canal-treated tooth.