13 July 2021

What is Tooth Sensitivity?

If you are one of those people who cringe at the thought of eating an ice cream or sipping a cup of coffee, rest assured you are not alone. Tooth sensitivity is a common condition with a wide range of contributing factors, and it is something that dentists treat on a regular basis. Whilst it is normal to experience tooth sensitivity every now and then, those who experience long term sensitivity may have an underlying dental condition need diagnosis and treatment. Rose Dental are here to help, and in this blog post we will be sharing some of the most common triggers for tooth sensitivity. 

If you have sensitive teeth, everyday foods and drinks can unexpectedly trigger a jolt of nerve pain. That short, sharp pain is characteristic of what people with tooth sensitivity experience.

Common Causes of Tooth Sensitivity

People can experience tooth sensitivity on single or multiple teeth. Sensitivity can be intermittent or chronic, and you may notice symptoms occurring suddenly. Some of the more common stimuli for sensitivity are:

  • Hot/Cold beverages and food
  • Cold weather
  • Eating sweet
  • Eating acidic fruits and drinks

Tooth enamel protects our teeth against physical and chemical damage and allows us to consume hot/cold food and beverages without sensitivity. However, enamel thickness may reduce due to normal wear and tear or vigorous brushing with hard bristle tooth brush. In these cases, the dentine of the tooth will be exposed, and this can cause chronic tooth pain and sensitivity.

The dentin contains a large number of pores or tubes that run from the outside of the tooth to the nerve in the centre. When the dentin is exposed, these tubes can be stimulated by changes in temperature or certain foods. Here is an image of what the dentin tubes look like under the microscope:

 You should ensure that you attend routine dental check-ups every 6 months, as this will ensure your oral health remains in good condition and any potential issues are identified early.

Other Factors which Contribute to Tooth Sensitivity

Whilst the above can all trigger tooth sensitivity, there are other factors which should be minimised or avoided. Those with chronic sensitivity may have more serious issues in need of addressing, so you should not delay in seeking an appointment with your dentist. 

  • Brushing too had – there’s no need to brush hard, as this will only irritate your gums and wear down the enamel layer on your teeth. We recommend using either a soft or medium toothbrush with gentle pressure.
  • Bruxism (tooth grinding) – people with a history of teeth grinding are more likely to experience tooth sensitivity, as this places significant stress on your teeth. Over time the wear and tear will start to become visible, and it is important to address this issue as soon as possible. Your dentist would be happy to provide support and formulate a bruxism management plan. 

Underlying Dental Issues

  • Gum Disease – this can cause sensitive teeth due to the gum recession. This can leave the tooth root surface to be exposed. You may also notice bleeding, swelling, redness and tenderness around the teeth. This is a serious condition, and you should not delay in seeking treatment.
  • Tooth Decay – in the late stages of tooth decay it is not uncommon to feel sharp pain and sensitivity, due to the exposure of the dentine or tooth nerve. 
  • Chipped/Cracked Teeth – teeth can be damaged in many ways, aging, normal wear nad tear, high temperature changes causing teeth to expand and contract developing small cracks and the most common being during sporting injuries. If the dental pulp or dentine is exposed, you may experience sensitivity. 

If you feel some sensitivity immediately after a dental treatment or routine examination, this is normal and there is no need to panic. Sensitivity should subside in the coming days.

Experiencing Tooth Sensitivity? Visit Rose Dental for a Check-up Today

 Sensitive teeth can be experienced for a number of reasons, and it is important to determine the underlying cause of your symptoms. Call (02) 8056 1445 to book an appointment at rose dental, your local dentist in Five Dock. We look forward to welcoming you as a patient.