Fortunately for those of us who have experienced a toothache, relief typically follows a visit to the dentist for a filling, a crown, or root canal therapy. But when you have a lingering toothache that won't go away, although your tooth and its associated nerve appear sound and healthy based on an examination and x-rays - believe it or not, it may be due … [Read more...] about Lingering Toothache – Is It A Sprained Ligament?