Tooth sensitivity is a common dental issue, but when it strikes suddenly, it can be alarming. One day you’re sipping hot coffee or enjoying an ice-cold drink, and the next, you’re wincing in pain. While the discomfort can feel sharp and unexpected, it’s often the result of underlying issues that may need prompt attention. Understanding what causes sudden tooth sensitivity—and knowing when to seek help—can help you manage the problem effectively and protect your long-term oral health.
What Is Sudden Tooth Sensitivity?
Tooth sensitivity occurs when the protective enamel layer is compromised, exposing the underlying dentin and nerve endings. Sudden sensitivity can feel like a sharp, shooting pain in one or more teeth, often triggered by hot, cold, sweet, or acidic foods and drinks. For some, even cold air or brushing can cause discomfort.
If the sensitivity is new, persistent, or worsening, it’s important to visit your dentist in Glebe to identify the root cause.
Common Triggers of Sudden Tooth Sensitivity
1. Tooth Enamel Wear
The most common cause of sensitivity is enamel erosion. This can happen gradually due to:
· Brushing too hard
· Using abrasive toothpaste
· Acidic food and drinks
· Teeth grinding (bruxism)
As enamel wears away, dentin becomes exposed, leading to sensitivity.
2. Tooth Decay or Cavities
A cavity can break through the enamel and expose the inner layers of your tooth. If the decay progresses quickly or reaches the nerve, you may feel sudden pain or heightened sensitivity, especially when eating or drinking.
3. Cracked or Fractured Teeth
A hairline crack in a tooth might go unnoticed—until it starts hurting. These cracks can allow temperature and pressure to reach the inner pulp of the tooth, resulting in sudden sensitivity or pain.
4. Recent Dental Work
If you’ve had a filling, crown, or professional cleaning recently, mild temporary sensitivity is normal. However, if the discomfort becomes intense or lasts more than a few days, it’s best to check in with your Glebe dental provider.
5. Gum Recession
When gums pull away from the teeth due to aging, aggressive brushing, or gum disease, they expose the sensitive root surfaces. This can cause one or more teeth to become suddenly sensitive, especially to cold.
6. Tooth Whitening Products
Bleaching agents used in over-the-counter or professional whitening treatments can irritate the nerves inside the teeth, triggering sudden sensitivity—particularly in people who already have thin enamel.
When to See a Dentist
If your sensitivity is sharp, persistent, or affecting your daily life, don’t ignore it. It may indicate a deeper problem like decay, infection, or nerve exposure. A prompt evaluation by an emergency dentist in Glebe can help prevent the issue from worsening and provide much-needed relief.
How Your Dentist Can Help
Depending on the cause, your dentist may recommend:
· Desensitising toothpaste
· Fluoride treatment
· Dental bonding or sealants
· Fillings or crowns
· Gum treatment
· A nightguard for grinding
Don’t Let Sensitivity Ruin Your Smile
Sudden tooth sensitivity can be more than just an inconvenience—it’s often your body’s way of signalling an issue. Whether it’s a cavity, crack, or gum concern, early treatment is the key to lasting comfort and protection. If you’re experiencing sensitivity, book a visit with your trusted dentist and take the first step toward relief.
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