Learn about nail biting and potential harm of the habit. Can nail biting cause problems with your bite?
Nail biting is a rare habit before 3-6 years of age. The number of persons who bite their nails is reported to increase until adolescence. It has been suggested that the habit is a manifestation of increased stress. There is no evidence that nail biting can cause malocclusion or dental change other than a minor enamel fractures, therefore there is no recommended treatment. Nail biting may damage the fingernail beds, and it may be necessary to use appropriate nail care products to protect the nails.
Pinkham JR: Oral Habits. Pediatric Dentistry- Infancy Through Adolescence 393-401, 1999