Causes of Underbites

 The way your teeth align may be affected by several factors. Normally teeth grow in such a way that upper teeth fit a little over the lower teeth. Your morals-the flat, wide teeth at the back of your mouth- should fit into one another. 

There are several factors that could cause a person to develop an underbite. These include: 

• Childhood habits
• Thumb sucking
• Pushing on teeth with the tongue
• Pacifier use in children above age 3
• Long term feeding from a bottle beyond infant years 
• Genetics 
• An underbite can be inherited
• Injury 
• Surgery for broken jawbones
• Tumors
• Tumors on the jawbones or in the mouth may cause the jaws to protrude, causing an underbite.