A badly damaged tooth is not judged by pain alone. The real question is whether the tooth can be cleaned, sealed and rebuilt strongly enough to keep working. If it can, root canal treatment often gives the best chance of keeping your natural tooth. If it cannot, extraction may be the safer option. Visit : https://www.scdental.com.au/root-canal-vs-tooth-extraction-which-is-better-for-a-bad-tooth/