Gummy smile causes and treatment options
A gummy smile may reflect gum coverage, tooth eruption, lip movement, or jaw position, so treatment depends on the diagnosed cause.
The short answer
A gummy smile can be caused by excess gum coverage, altered tooth eruption, a short or highly mobile upper lip, or vertical jaw development, and treatment is chosen after examination.
Which features determine how much gum shows when smiling?
The visible gum-to-tooth relationship depends on the gingival margin, tooth crown length, upper-lip movement, and the position of the upper jaw. More than one factor can occur in the same person.
How is the cause of a gummy smile assessed?
A dentist records the smile at rest and during movement, examines the gum margins, and may assess tooth proportions and jaw relationships with photographs, scans, or radiographs. Options can include gum contouring, orthodontics, lip-focused treatment, restorative care, or jaw surgery.
When should a new or changing gummy smile be checked?
Seek assessment when the appearance is new, the gums bleed or enlarge, or the teeth seem partly covered. Prompt review is appropriate if swelling, pain, or a change in bite accompanies the smile concern.
Which cause is mainly responsible for your gummy smile?
Ask which anatomical factor is dominant and whether the teeth are fully erupted. Ask how much gum would be removed, whether orthodontic or restorative treatment is needed, and what relapse or maintenance may involve.
Frequently asked questions
What is the first step in assessing a gummy smile?
A dentist records the smile at rest and during movement, examines the gum margins, and may assess tooth proportions and jaw relationships with photographs, scans, or radiographs. Options can include gum contouring, orthodontics, lip-focused treatment, restorative care, or jaw surgery.
When does this need prompt care?
Seek assessment when the appearance is new, the gums bleed or enlarge, or the teeth seem partly covered. Prompt review is appropriate if swelling, pain, or a change in bite accompanies the smile concern.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.