Good oral health goes beyond brushing and flossing. Find out more about the inside of your mouth and the role its various structures play in speech and digestion.
By Connie Brichford | Medically reviewed by Niya Jones, MD, MPH
Your mouth is made up of more than just teeth, so good oral health goes beyond simply brushing and flossing. In addition to your teeth, your mouth is made up of gums, oral mucosa, the upper and lower jaw, the tongue, salivary glands, the uvula, and the frenulum. All of these structures play an important role when it comes to good dental health and are routinely examined when you receive dental care.
The Oral Mucosa
When you open your mouth and look in the mirror, everything that isn’t a tooth is covered by a protective lining called the oral mucosa, which is a mucous membrane similar to the mucous membranes that line your nostrils and inner ears.
The oral mucosa plays an essential role in maintaining your oral health, as well as your overall health, by defending your body from germs and other irritants that enter your mouth. A tough substance called keratin, also found in your fingernails and hair, helps make the oral mucosa resistant to injury.
Your gums are the pinkish tissue that surrounds and supports your teeth. Also covered by oral mucosa, gums play a critical role in your oral health. Healthy gums are firm, cover the entire root of the tooth, and do not bleed when brushed, poked, or prodded. Gum disease can ultimately lead to tooth loss, so taking care of your gums by flossing daily is just as essential to dental care as brushing your teeth.
The Upper and Lower Jaw
Your jaws give your face its shape and your mouth the structure it needs for chewing and speech. Human jaws are made up of several bones: The upper jaw contains two bones that are fused to each other and to the rest of your skull, while the lower jawbone is separate from the rest of the skull, enabling it to move up and down when you speak and chew.