The Risks of Chewing Ice: Protect Your Teeth and Jaw Health

Chewing ice may seem like a harmless or even refreshing habit, but dental professionals warn that it can cause significant damage to your teeth and jaw over time. While enjoying an occasional ice crunch might not be problematic, making it a daily habit increases the risk of enamel erosion, cracked or chipped teeth, and even discomfort in the jaw joints.

Ice is one of the hardest substances people regularly bite into. Continuous pressure from chewing on ice can weaken the tooth's outer protective layer, the enamel, leading to heightened sensitivity to hot and cold stimuli and making teeth more prone to fractures. Initially, these cracks and chips may go unnoticed, but over time, they can necessitate costly dental repairs.

"Many people chew ice because it feels refreshing, but persistent cravings may reflect underlying health issues," explains Dr. Aikaterini Papathanasiou, a professor and chair at Tufts University Dental School. Besides damaging natural teeth, ice chewing can also harm dental restorations such as fillings, crowns, or braces, often without immediate symptoms.

Additionally, the repetitive act of crushing ice exerts stress on jaw muscles, potentially leading to discomfort or tenderness in the temporomandibular joint (TMJ), which connects the jaw to the skull. Studies show that individuals who frequently chew ice are more likely to experience TMJ pain.

Craving ice isn't merely a matter of taste but can also signal health conditions like iron deficiency anemia or dehydration. Some use ice to soothe dry mouth, but if the urge to chew persists daily, consulting a healthcare professional is advisable to rule out nutritional deficiencies or other medical issues.

For those attempting to curb the habit, substituting with cold water or softer frozen snacks can help satisfy the craving without risking dental injuries. Recognizing and addressing the root causes of ice cravings can protect your dental health and overall well-being.

Source: https://medicalxpress.com/news/2025-10-ice-teeth-jaw.html