Are there any nerves or other tissue in the central area of the LL1 gum that can be damaged and cause constant mild pain by the simple action of stabbing with a dental probe. Bizarrely this area is also affected when I have a bout of Heartburn which causes a line of pain running from the LL1 region down my neck. Fortunately I can control this by taking Heartburn medication. I was wondering if the line of pain is a nerve.\n\nI should mention that the LL1 tooth has been extracted due to failed root canal treatment and a fixed bridge installed. The pain was there before the bridge.