Understanding Tooth Sensitivity

That sharp, sudden twinge when biting into something cold or sweet is a sensation many people know all too well. Tooth sensitivity is one of the most common complaints seen in general dentistry, and while it can often be managed effectively, understanding what is causing it is the first step toward lasting relief.

As an experienced provider of general dentistry in Midhurst and across West Sussex, Woodcroft Dental & Implant Clinic regularly helps patients identify the cause of their tooth sensitivity and provides effective, long-term treatment. This guide explains what causes sensitive teeth and how dentists typically treat the problem.

What Causes Tooth Sensitivity?

Tooth sensitivity occurs when the protective layer of enamel on the tooth is worn down, or when the gums recede and expose the underlying dentine. Dentine contains tiny tubules that lead directly to the nerve of the tooth, meaning that hot, cold, sweet, or acidic stimuli can trigger a sudden, sharp sensation.

Enamel Erosion

Acidic foods and drinks, including citrus fruits, fizzy drinks, and wine, can gradually wear away enamel over time. Once enamel is lost, it does not regenerate, making the underlying dentine more exposed and the tooth more sensitive.

Gum Recession

Receding gums — often caused by gum disease, ageing, or overly vigorous brushing — can expose the root surface of the tooth, which is not protected by enamel and is therefore particularly sensitive to temperature and pressure.

Tooth Grinding (Bruxism)

Grinding or clenching the teeth, often during sleep, can wear down enamel over time and place excess pressure on the teeth, contributing to sensitivity.

Tooth Decay or Damage

Cavities, cracked teeth, or worn fillings can all expose the inner layers of the tooth, leading to sensitivity that is often localised to a single tooth rather than affecting the whole mouth.

Recent Dental Treatment

Mild sensitivity following procedures such as fillings, whitening, or scale and polish treatments is common and usually settles within a few days to a couple of weeks.

Overly Vigorous Brushing

Brushing too hard, or using a hard-bristled toothbrush, can wear away enamel and irritate the gums over time, both of which can contribute to sensitivity.

How Dentists Diagnose Tooth Sensitivity

At Woodcroft Dental & Implant Clinic, a thorough examination is carried out to identify the underlying cause of sensitivity. This typically includes checking for visible enamel wear, gum recession, decay, or damage, and may involve X-rays where a more detailed assessment is needed.

How Tooth Sensitivity Is Treated

Desensitising Toothpaste

For mild cases, a specialist desensitising toothpaste used consistently over several weeks can help block the tubules in the dentine, reducing sensitivity over time.

Fluoride Treatment

Professional fluoride varnish applied in-clinic can help strengthen enamel and reduce sensitivity, particularly for patients with early signs of enamel erosion.

Treating Gum Recession

Where gum recession is the underlying cause, treatment may focus on improving gum health and, in some cases, restoring exposed root surfaces to reduce sensitivity and protect the tooth long-term.

Fillings or Bonding

Where decay, cracks, or worn fillings are responsible for sensitivity, restorative treatment such as a filling or bonding can resolve the issue by sealing and protecting the affected tooth.

A Custom Nightguard

For patients who grind or clench their teeth, a custom-made nightguard can protect the enamel from further wear and help reduce sensitivity over time.

How to Help Prevent Tooth Sensitivity

• Use a soft-bristled toothbrush and avoid brushing too hard
• Limit acidic foods and drinks where possible
• Wait at least thirty minutes after eating or drinking acidic items before brushing
• Attend regular dental check-ups at Woodcroft Dental & Implant Clinic
• Mention any new or worsening sensitivity to your dentist promptly

When to See a Dentist

While occasional mild sensitivity is common, persistent or worsening sensitivity — particularly if localised to one tooth, or accompanied by pain, swelling, or visible damage — should always be assessed by a dentist. Early diagnosis allows the underlying cause to be treated before it develops into a more significant problem.

Conclusion

Tooth sensitivity can have a range of underlying causes, from enamel erosion and gum recession to decay and grinding. With a proper assessment and the right treatment plan, most patients find significant, lasting relief. The team at Woodcroft Dental & Implant Clinic is on hand to identify the cause of your sensitivity and recommend the most appropriate treatment.

If you are experiencing tooth sensitivity, book an appointment with Woodcroft Dental & Implant Clinic today.

📞 Call: 01730 812053