Republished: June 19, 2025
If you’ve noticed lines or cracks in your teeth, especially on your front teeth, it’s natural to feel concerned. But not all cracks are serious! Some are simply superficial, while others may require immediate attention to prevent serious dental issues.
Let’s break it down into what you need to know.
1. Not All Tooth Cracks Are the Same
Some visible lines on your teeth, particularly the vertical lines on your front teeth, are called craze lines. These are shallow, surface-level cracks in the tooth enamel that often appear in middle age and are mostly harmless.
Craze lines are also known as ‘hairline cracks’ or ‘superficial cracks’ and are usually only noticeable when light hits your tooth at just the right angle. While they may look unsightly or raise cosmetic concerns, they are generally not a threat to your dental health.
2. How Do Craze Lines Happen?
Our teeth go through daily wear and tear. Here are some common causes of craze lines:
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Hot and cold temperature changes
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Teeth grinding or clenching (bruxism)
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Years of chewing pressure
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Ageing enamel
Though craze lines can become stained and occasionally lead to decay, treatment is rarely necessary unless there are cosmetic concerns. In those cases, patients may opt for composite bonding or ceramic veneers. If grinding is suspected, your dentist may recommend an occlusal splint (night guard) to prevent further damage.
3. When It’s More Than Just a Craze Line
Unlike harmless surface lines, true cracks go deeper into the tooth structure. These cracks often result from the same pressures that cause craze lines but can eventually:
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Reach the dentine or pulp
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Lead to infection
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Cause the tooth to fracture unexpectedly—even while eating soft foods like bananas or bread!
Unfortunately, cracked teeth are unpredictable. Some can be restored, while others may require extraction, especially if the crack extends into the root.
4. Why Early Detection Matters
At our Highgate Hill dental clinic, we assess your teeth for hidden cracks during every routine examination. Identifying a crack early means you have the option to act proactively—possibly with a crown or preventive treatment—before the issue worsens.
Think of it like dental insurance: acting early may save you from more serious problems and costs down the track.
5. When to See a Dentist
If you notice a line, chip, or unusual sensitivity, don’t wait. A consultation can help determine whether it’s a cosmetic craze line or a serious crack that requires professional care.
We Welcome Your Call
If you’re concerned about lines or cracks in your teeth, don’t ignore them. Contact our friendly team at Be Well Dental in Highgate Hill to book a consultation. We’ll help you understand what’s going on and guide you towards the best solution for your smile.