Why Teeth Crack: Understanding the Causes and How to Protect Your Smile
Teeth are incredibly strong, but like any part of our body, they aren’t invincible. A cracked tooth can occur unexpectedly, causing pain, sensitivity, and frustration. Whether it’s a slight chip or a severe fracture, cracked teeth require prompt attention to prevent further damage. In this blog, we’ll explore the reasons teeth crack and offer tips on how to protect them for a lifetime of healthy smiles.
1. Injury or Trauma
One of the most common reasons for a cracked tooth is physical trauma. This can happen from accidents like falls, car crashes, sports-related injuries, or even biting down too hard on something hard (think popcorn kernels or ice). The force of the impact can cause a tooth to crack, even if it initially seems like only a minor injury.
Protection Tip:
Wearing a mouthguard while playing contact sports or engaging in high-risk activities can significantly reduce your chances of tooth injury. If you’ve had a previous trauma, it’s essential to stay vigilant for any signs of a crack.
Cracked teeth from a biking accident
Cracked teeth after repair
2. Bruxism
Do you have the habit of grinding or clenching your teeth? Bruxism (the medical term for teeth grinding) is another leading cause of cracked teeth. The excessive pressure on your teeth from this behavior can lead to fractures over time. This is especially common at night while you sleep, often without even realising it! However, bruxism can also cause other signs and symptoms, such as headaches, generalised teeth sensitivity and jaw pain. Nocturnal bruxism can also sometimes be a sign of a sleep disorder.
Protection Tip:
If you suspect you grind your teeth, especially at night, visit your dentist for an evaluation. A custom night guard can help protect your teeth from damage and reduce the risk of cracking.
Custom-made mouthguard for tooth grinding
3. Large Fillings
Teeth that have large fillings are more vulnerable to cracking. While fillings are required to restore teeth due to decay, the decay itself will have weakened the structure of the tooth, making it more prone to breaking under stress. This is true when there has been so much decay in the tooth that there is now more filling that tooth structure, or if there are thin parts of the tooth left. Additionally, old fillings can wear down, leaving teeth more susceptible to fractures.
Protection Tip:
If you have large fillings schedule regular dental check-ups to monitor the health of your teeth. Your dentist may recommend replacing older restorations to ensure that your teeth remain strong and intact. They may recommend crowns to replace large fillings as these are less likely to fracture and protect the remaining tooth structure underneath.
Teeth with large amalgam fillings
4. Aging Teeth
As we age, our teeth naturally become more brittle. This is partly due to the natural wearing down of tooth enamel, which protects the teeth from cracks and fractures. Older teeth may also experience changes in the structure of the enamel, leading to an increased risk of cracking.
Protection Tip:
Maintaining good oral hygiene habits, such as brushing with fluoride toothpaste and using a soft-bristled toothbrush, can help protect enamel. Avoiding excessive consumption of acidic foods and drinks is also beneficial for preserving tooth strength.
Tooth with crack into the nerve that had to be extracted
5. Sudden Temperature Changes
Sudden changes in temperature can also lead to cracked teeth. For instance, drinking a hot cup of coffee followed by a cold beverage can cause your teeth to expand and contract, potentially leading to microfractures over time. This stress on the tooth enamel can weaken its integrity.
Protection Tip:
Try to avoid extreme temperature changes, especially when consuming food or drinks that are extremely hot or cold. If you notice heightened sensitivity, it could be a sign that your teeth are becoming more vulnerable to cracks.
6. Cavities or Decay
Tooth decay is another common cause of cracks. When cavities are left untreated, they weaken the structure of the tooth, making it more susceptible to breaking. Usually by the time you notice a cavity, it has already grown quite large.
Protection Tip:
Regular dental check-ups and x-rays are crucial to detect cavities early. Treating cavities before they worsen can prevent tooth fractures and other more severe dental issues down the road.
Regular dental x-rays can help pick up decay
7. Chewing on Hard Objects
Some people have the habit of chewing on non-food items, such as pens, nails, or ice. This constant pressure on your teeth can cause them to crack over time. Even chewing on hard foods like caramel or hard nuts can be damaging if done regularly.
Protection Tip:
Be mindful of what you chew on. Avoid hard objects that can put unnecessary stress on your teeth.
Final Thoughts: How to Prevent Cracked Teeth
Cracked teeth are preventable with the right precautions. Regular dental visits are essential to detect and treat issues before they become more serious. If you’re experiencing tooth pain, sensitivity, or any signs of cracking, don’t wait—schedule an appointment with your dentist right away. They can help determine the cause and suggest the best treatment to restore your smile.
Taking care of your teeth today will help ensure that you continue smiling with confidence for years to come!
At Dentistry On George, we prioritize your oral health and want to help you maintain strong, healthy teeth for life. If you suspect a cracked tooth or are concerned about your dental health, contact us today to schedule an appointment! Let’s keep your smile safe and shining.
