Are Root Canals Safe?

Yes. Root canal therapy is one of the most thoroughly studied and reliable procedures in dentistry, and the occasional fear surrounding it traces back to research from the 1920s that was disproven decades ago and has never been reproduced with modern methods. The "focal infection theory" that linked root canals to systemic disease was abandoned by the scientific community long ago, yet it continues to circulate online. A root canal does exactly one thing: it removes infected and inflamed tissue from inside a tooth, disinfects the space, and seals it — eliminating an active infection that would otherwise spread into the bone and bloodstream. The procedure doesn't cause disease; it resolves one.

It also helps to reframe what a root canal really is: a way to keep your own tooth. The alternative to treating an infected tooth is losing it and replacing it with an implant, that may also very well fail. So when a tooth can be reliably saved, saving it is usually the better long-term choice — an implant is a great option when there's no tooth left to save, not a reason to give up on one that can be. Modern endodontics is precise, predictable, and typically no more uncomfortable than getting a filling. When a tooth is a good candidate, saving it is almost always the better long-term decision for your bite, your bone, and the teeth around it.