Craze lines
Craze lines are tiny cracks that appear on the enamel surface of teeth due to minor trauma, stress, or natural wear and tear. They are superficial and generally harmless, often caused by habits like tooth grinding or biting on hard objects. While they typically do not require treatment, they may affect the tooth's appearance over time and can collect stains. Regular dental check-ups can help detect craze lines early, allowing for appropriate management and preventive measures to maintain oral health.
Fractures / Cracks
Fractured teeth occur when the tooth's structure is broken or cracked, which can happen due to various reasons including trauma, decay, or biting on hard objects. Fractures can range from minor chips to more severe breaks that extend into the tooth's inner layers.
Where are the most common cracks in the mouth?
Mandibular molars 90% - fragile cusp of carabelli is subjected to constant flexing forces from the upper arch
Maxillary molars
Premolars
Anteriors
Why are cracks in the mouth feared?
Treatments such as dental crowns or root canal therapy may be necessary to stabilize the tooth and prevent further damage or infection. In severe cases where the crack has compromised the tooth's structural integrity beyond repair, extraction may be required.
What can patients do to prevent cracks in the mouth?
If you suffer from bruxism, wear a splint. If you have obstructive sleep apnoea, you should also consider wearing a splint.
What can clinicians do to prevent cracks in the mouth?
Avoid restorations which involve pins. If a pin is really needed for stability, choose the smallest pin possible and place it in the largest canal.
Maxillary first and second molar - palatal root
Maxillary first premolar - buccal root is slightly longer
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