What Causes a Gummy Smile?

What Causes a Gummy Smile?
  1. Genetics and Anatomy
  2. Excess Gum Tissue
  3. Poor Dental Hygiene

You may have a gummy smile if your gum tissue shows up above your top teeth when you smile. It is normal for gums to show slightly when you smile. However, if more than 2 millimeters of your gum tissue is exposed, then you probably have a gummy smile, or excessive gingival display.

According to experts, 10 percent of 20-30-year-old adults think their smiles are gummy. If you are bothered by a gummy appearance, the good news is that it is treatable.

You may have inherited a gummy smile from your parents, or it may be caused by certain oral habits. Here are some of its common causes:

Genetics and Anatomy


Genetics may be the culprit for most patients. If you have inherited a large jaw, small teeth, or a short upper lip, your smile may appear gummy.

When your top jaw does not align well with your bottom jaw, you may have a bad bite. This is a hereditary condition that can cause many issues ranging from crooked teeth to a gummy smile. Another condition known as hereditary gingival fibromatosis is also a possibility, but it is rather rare.

Excess Gum Tissue


Having too much gum tissue is also a common cause of a gummy smile. When permanent teeth sprout, sometimes, there is an overgrowth of gum tissue that covers the front teeth further than required. At times, however, swelling due to a gum infection may also make it seem like you have excess gum tissue.

Poor Dental Hygiene


When plaque forms on your teeth, it can seep under your gums and cause them to become inflamed or enlarged. Swollen gums can cover more of your teeth to make your smile appear gummy. People with braces may also get gummy smiles if they neglect dental hygiene. It is particularly difficult to brush or floss while wearing braces, which may cause bacteria buildup near the gums.

Side effects of certain medications may also lead to enlarged gums. A gummy smile needs dental care to be rectified. If you wish to get yours treated, schedule an appointment with us at Gwinnett Dental Implant & Periodontal Center by calling us at (470) 222-8983 today.

Meet Our Doctors

Dr. Melody Schiffer

Dr. Melody Schiffer was born and raised in Westchester, NY, and graduated from the University of Michigan in Ann Arbor before continuing her education at the University of Medicine and Dentistry of New Jersey. She completed her periodontics and implant dentistry residency at New York University College of Dentistry and is a diplomate of the American Board of Periodontology. Dr. Schiffer is an active member of several dental associations and frequently lectures nationwide. She lives in Suwanee with her husband and two daughters and enjoys community services, traveling, exercising, following Michigan football, and spending time with her family.

Dr. Melody Schiffer

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Dr. Nisha Kancherla

Dr. Nisha Kancherla was born and raised in Glen Dale, WV. She earned her dental degree from the University of Pennsylvania School of Dental Medicine and completed her residency in periodontics at the University of Illinois Chicago College of Dentistry. Dr. Kancherla also earned a master’s degree in oral science for her research in genetics and stem cell research, which she published in Molecular Cancer Research. She is a Diplomate of the American Board of Periodontology and has been in practice for eight years.

Dr. Nisha Kancherla

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