Straight, No Chaser: Sensitive Teeth

sensitive teeth

What goes through your mind when your teeth hurt (other than whether or not all of that Valentine’s Day candy is worth it)? Is it fleeting or constant? Are you easily agitated by hot and cold stimuli alike? Do you have problems even when you brush and/or floss? These are some of the circumstances those with sensitive teeth have.


Now you would think this is pretty straightforward, right? Your teeth hurt, you stop doing what is making them hurt, and you go to get them evaluated. Unfortunately, it’s never that simple. Sensitive teeth can be a precursor to disease developing, or it can be a symptom of disease that’s established. Examples of causes of sensitive teeth include the following.

  • Cavities (holes in the teeth)
  • Decayed and/or fractured teeth
  • Exposure of the tooth root or nerve endings supplying the teeth
  • Gum disease
  • Worn tooth enamel or fillings

A common thread exists in the above listing. Enamel protects healthy teeth at the level of your crowns—the part above the gum line. Cementum protects the tooth root (which lies below the gum line). Underneath both the enamel and the cementum is dentin, a layer of the teeth less dense and more hollow. When the levels of protective covering are eroded and dentin is exposed, foods and other substances may penetrate and reach the nerves within your teeth through these more hollow areas. The increased propensity for this to happen is experienced as hypersensitivity.
Your first challenge is not to let things get out of control. In the event you’re experiencing dental pain for any reason, it needs to be evaluated and addressed. If it’s truly hypersensitivity, your dentist has several options at his or her disposal.

  • Desensitizing toothpaste contains compounds that help block transmission of sensation from the tooth surface to the nerve. Several applications are usually required before the sensitivity is sufficiently lessened.
  • Fluoride gel can be applied in the dentist’s office. This serves to strengthen tooth enamel.
  • Placement of a crown, inlay or bonding may be used to correct a flaw or decay that results in sensitivity.
  • If gum tissue has been lost from the root, a surgical gum graft will protect the root and reduce sensitivity.
  • If sensitivity is severe and persistent and cannot be treated by other means, your dentist may recommend a root canal to eliminate the problem.

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2 thoughts on “Straight, No Chaser: Sensitive Teeth

  1. As much as I hate the dentist, I must say thank you. Especially with it being right around the corner from Halloween, I’ve been devouring candy corn today and noticing some sensitivity toward the back teeth.
    Now I just had a root canal a week ago. And I despise flossing. This little blog entry of yours has me 1) going to call my dentist to set up my annual exam/cleaning (which I’ve been putting off pending the root canal), and 2) to become truly determined to floss my teeth…
    So, thank you. for grinding it into my brain that I really need to pay attention to these little signs. And do what I know I need to do.

    1. Great to hear! I can’t overestimate the importance of flossing to your dental health. Leaving food in your teeth at your gum line renders brushing just a cosmetic exercise and a temporary fix. Choose the tricks over the treats! All the best.

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