Various studies have shown that nail biting can cause multiple oral problems. As a matter of fact, the book Pediatric Dentistry by Pinkham states that nail biting can cause a diastama – a gap between your two front teeth. “If the nail biting habit begins when a child is very young, it has been reported to cause a gap between teeth”. (Casamassimo) In addition to this, biting your nails can cause the roots of your teeth to become weaker. “Nail biting during orthodontic treatment has been shown to cause root resorption”. This occurs when the bone surrounding your teeth dissolves parts of your roots. So not only does nail biting cause you to become ill, it also has an affect on your oral cavity, causing harm, leading to poorly aligned and weakened