There can be a variety of reasons you may feel unhappy with your smile, often relating to the appearance of your teeth. This may include concerns such as size, shape, alignment, colour, or spacing.
Some concerns may relate to the amount of gum visible when smiling. In some cases, this may be described as a ‘gummy smile’. This can occur for a number of reasons, and different treatment options may be considered depending on the cause and individual circumstances.
Find out more below, including possible causes and treatment considerations.
Article Summary
- What is a gummy smile?
- Causes of gummy smile
- Gummy smile treatment options
- Muscle relaxant injections for gummy smile
What is a gummy smile?
A gummy smile, sometimes referred to as excessive gingival display, is a term used when a larger amount of gum tissue is visible above the upper teeth when smiling. The perception of this can vary between individuals.
If you have concerns about the appearance of your smile, it is recommended to visit your dentist for an assessment to help determine possible contributing factors and discuss appropriate options.
Causes of gummy smile
There are several reasons a gummy smile may occur, relating to:
- Tooth issues
- Gum issues
- Lip issues
- Jaw issues
Tooth issues
Tooth size, wear, or positioning may influence how much gum is visible when smiling.
Gum issues
In some cases, gum tissue may cover more of the tooth surface than expected, which can affect the appearance of the smile.
Lip issues
Lip position and movement can influence how much gum is displayed when smiling.
Jaw issues
The relationship between the upper jaw and surrounding facial structures may also affect gum visibility.

Images shown are provided for illustrative purposes only. Individual results vary, and no specific outcome is guaranteed. After image was taken approximately 2 weeks after treatment.
Gummy smile treatment options
After assessing the cause of your gummy smile, your dentist can discuss treatment options that may be appropriate for your individual case. These options can vary in complexity, cost, expected longevity, and risk profile.
Treatment options may include:
- Orthodontic treatment
- Gingivectomy or gum contouring
- Professional teeth cleaning
- Jaw surgery
- Lip surgery
- Muscle relaxant injections
Orthodontic treatment
Orthodontic treatment may be considered in cases where tooth position contributes to gum visibility.
Gingivectomy/Gum lift
Where gum levels contribute to the appearance of the smile, gum contouring procedures may be discussed as part of treatment planning.
Professional teeth cleaning
If gum inflammation is present, professional cleaning may be recommended as part of general oral health care. Your practitioner may also discuss any contributing factors that should be reviewed with your medical provider.
Jaw surgery
In certain cases, referral to a specialist may be required where jaw structure contributes to the presentation.
Lip surgery
Lip position or movement may also be considered when discussing treatment options, and referral to an appropriate practitioner may be recommended where relevant.

Muscle relaxant injections for a gummy smile
In some cases, muscle relaxant injections may be considered as part of a treatment plan where lip movement contributes to gum display. Suitability for this treatment is determined following a consultation and clinical assessment.
What are muscle relaxant injections?
Muscle relaxant injections are prescription-only treatments. Their use, suitability, and expected outcomes will be discussed with a qualified practitioner during consultation.
How are muscle relaxant injections used for a gummy smile?
Where appropriate, your practitioner will determine the treatment approach based on your individual assessment, anatomy, and clinical needs.
What should I expect when getting muscle relaxant injections?
Individual experiences can vary. Your practitioner will explain what to expect before, during, and after treatment, including possible aftercare requirements and review timeframes.
What are the risks of muscle relaxant injections for gummy smile treatment?
As with any medical procedure, there are potential risks and side effects. These will be discussed with you prior to treatment to support informed decision-making.
If you would like to find out whether treatment may be suitable for you, contact your nearest Oasis Dental Studio to arrange a consultation.
- Oasis Dental Studio Broadbeach
- Oasis Dental Studio Chirn Park
- Oasis Dental Studio Palm Beach
- Oasis Dental Studio Pottsville
- Oasis Dental Studio West End
All dental and cosmetic treatments carry potential risks and benefits. Suitability for treatment will be determined following a consultation and clinical assessment by a qualified practitioner.
Results vary between individuals, and no specific outcome is guaranteed. Information provided is general in nature and does not replace personalised professional advice.
Cosmetic injectable treatments are medical procedures and carry potential risks and side effects.