Why Nail-Biting is Harmful to Your Oral Health

Nail-biting is a habit that often starts in childhood and can continue into adulthood. While it may seem like a minor issue, it can have lasting effects on your teeth, gums, and overall oral health.

Why is biting your nails bad for your dental health?

Here’s what you need to know:

Why Nail-Biting is Harmful to Your Oral Health

Effects on Teeth and Enamel

Biting your nails applies repeated pressure to your front teeth, which can:

  • Weaken enamel, making teeth more vulnerable to decay.
  • Cause micro-fractures that may worsen over time.
  • Damaged enamel causes greater sensitivity to cold, hot, and sweet. 
  • Lead to uneven tooth wear, affecting the bite and smile appearance.

Gum and Soft Tissue Damage

Fingernails are not clean—they harbor bacteria that can increase the risk of infections in your mouth and beyond.  Nail-biting can also cause minor cuts on the gum line, making it easier for bacteria to enter and cause irritation or inflammation.

Oral Health Risks Beyond Teeth

Other ways that biting your nails puts your oral health at risk include:

  • Jaw Strain: Constant nail-biting forces the jaw into unnatural positions, which may cause or worsen TMJ disorders.
  • Braces and Dental Work Damage: If you have braces, nail-biting can loosen brackets or bend wires, prolonging treatment. This habit can also damage dental restorations including veneers and crowns.

How to Quit Nail-Biting

Breaking the habit is challenging, but it’s possible with these steps:

  • Use a nail strengthener or bitter polish to discourage biting.
  • Keep hands busy with stress balls or fidget devices.
  • Practice mindfulness techniques to manage anxiety.

Address Damage from Nail Biting with Dental Works

Are you a long-term nail-biter? If you’re concerned that the habit has damaged your smile, our experienced dentist in Oakville at Dental Works is here to help. We offer complete restorative dental services to repair teeth and help you regain your smile. 

Contact us to schedule an appointment today!

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