A gummy smile is often less about having ‘too much gum’ and more about the proportions between your teeth, lips and gums when you smile. For some people, the upper gums show only slightly. For others, the gum display can make teeth appear short, uneven or less prominent than they would like. It can affect how comfortable someone feels in photographs, meetings or everyday conversations, even when their teeth are otherwise healthy.
There is no single definition of an ideal smile, and visible gums are not automatically a dental problem. Treatment is a personal choice unless gum disease, bite problems or tooth wear are also involved. The right approach starts by understanding why the gum display occurs, rather than choosing a procedure based on photos alone.
What causes a gummy smile?
A gummy smile can have several causes, and more than one factor may be present. This is why a proper smile assessment should look beyond the teeth themselves. Facial proportions, lip movement, gum health, tooth position and bite all influence what is visible when you smile.
Teeth that appear short
Sometimes teeth are naturally short in proportion to the gum line. In other cases, the gums cover more of the tooth surface than expected. This is known as altered passive eruption, where the gum tissue has not receded to its usual position after the teeth have erupted.
The teeth may be a healthy length beneath the gums, but only a smaller portion is visible. Where clinically appropriate, gum contouring can expose more of the natural tooth structure and create a more even gum line. This may make a significant visual difference without changing the tooth colour or shape.
Excess or uneven gum tissue
Gum tissue can sit unevenly across the upper front teeth, creating a smile that looks asymmetrical. It may also have become enlarged due to inflammation, certain medications or gum conditions. Before considering cosmetic gum contouring, a dentist needs to establish that the gums are healthy and that the proposed new gum line will be stable.
Bleeding, swollen or tender gums need clinical attention first. Cosmetic treatment on unhealthy gums can compromise both the result and long-term oral health.
A highly active upper lip
For some people, the upper lip rises higher than average when smiling. Their teeth and gums may be proportionate at rest, but a broad smile exposes more gum tissue. This is often described as a hypermobile upper lip.
Temporary muscle-relaxing injections may be considered in carefully selected cases to reduce upper-lip movement. The effect is not permanent, requires maintenance and needs to be planned conservatively. It does not alter gum levels or tooth proportions, so it may not be the best solution when other factors are contributing.
Tooth position, bite and jaw proportions
Upper teeth that have moved downwards, often through wear or changes in the bite, can contribute to excess gum display. Orthodontic treatment may be appropriate when tooth position is the primary issue. In more complex cases, the upper jaw itself may be positioned in a way that exposes more gum tissue, which can require assessment by an orthodontist or specialist oral and maxillofacial surgeon.
These are important distinctions. Gum contouring may improve the visible gum line, but it cannot correct every bite or skeletal concern. A responsible treatment plan identifies what can be predictably improved with dentistry and when a referral is the more appropriate path.
Gummy smile treatment options depend on the cause
The most suitable treatment should preserve healthy tooth structure wherever possible while addressing the feature that concerns you. A digitally planned consultation allows the dentist to assess your smile at rest, when speaking and at full smile, because each position can reveal something different.
Gum contouring
Gum contouring, also called gingival contouring, reshapes the gum line to reveal more tooth structure or improve symmetry. It may be performed with laser techniques at SmileOnPerth, depending on the amount of tissue involved and the relationship between the gum and underlying bone.
When gum tissue alone is responsible, the procedure can be relatively conservative. If the bone level is too close to the proposed new gum line, crown lengthening may be needed to support a stable result. Healing time, temporary sensitivity and the risk of gum tissue changing during healing should all be discussed before treatment.
Porcelain veneers or composite veneer treatment
Veneers can be considered after gum levels have been assessed or adjusted, particularly where teeth are also worn, chipped, stained, narrow or unevenly shaped. A veneer can refine the visible length, width and contour of a tooth, helping the smile look more balanced after gum contouring.
Porcelain veneers offer strong aesthetic properties and stain resistance, but they are a significant decision. Depending on the case, tooth preparation may be required and the treatment may be irreversible. Veneers can also chip, fracture or require replacement in the future. Composite veneer treatment can be more conservative in selected cases, although it may be more prone to staining, wear and maintenance.
The aim should not be to make every tooth as large as possible. It is to create proportions that suit your facial features, lip line and bite, while maintaining a result that feels natural when you speak and smile.
Orthodontic treatment
Braces or clear aligners may help reposition teeth that have erupted too far down, tipped forward or become crowded. Orthodontics can also improve the bite before cosmetic treatment, which may reduce the need for more extensive restorative work later.
This option usually takes longer than gum reshaping or veneers, but it can be the most conservative route when the underlying issue is tooth position. Some patients benefit from orthodontics alone, while others may combine it with whitening, gum contouring or minor restorative treatment once teeth are in their planned position.
Restorative treatment for worn teeth
Tooth wear can make front teeth look short and alter the balance between teeth and gums. Where wear is linked to grinding, acid erosion or an unstable bite, treatment may involve rebuilding tooth height with composite or porcelain restorations. An occlusal splint may also be recommended to help protect the teeth and restorations from ongoing grinding.
This treatment requires careful bite planning. Adding length to teeth without considering how they meet can lead to discomfort, fracture risk or premature wear. Cosmetic improvement and functional planning need to work together.
What happens during a smile assessment?
A consultation for a gummy smile should be detailed but easy to understand. At SmileOnPerth, the process can include photographs, a discussion of your concerns, an examination of gum health and bite, and 3Shape digital intraoral scanning where appropriate. Digital records help map tooth shape, gum levels and the relationship between your smile and facial features.
You may be asked what you notice most: gums that show too much, teeth that appear small, an uneven gum line or a smile that looks different in photos than it does in the mirror. These details matter. They help separate the concern you see from the clinical reason behind it.
The dentist should also discuss what treatment can and cannot change. For example, whitening can brighten teeth but will not alter gum display. Gum contouring can improve the visible tooth length but will not move the upper jaw. Veneers can enhance shape and proportion, but they do not replace the need to manage gum disease or a problematic bite.
Questions worth asking before treatment
Before proceeding, ask whether your gums are healthy, whether the proposed gum line is likely to remain stable and whether your bite will affect the longevity of any restorations. It is also sensible to ask how much natural tooth structure needs to be changed, what maintenance may be required and what happens if a veneer, crown or restoration needs replacement later.
Cost should be transparent, but it should not be the only comparison point. Two treatment plans may appear similar while involving very different levels of preparation, materials, planning and follow-up care. A lower-cost cosmetic option is not necessarily the more conservative option.
A well-planned gummy smile treatment should leave you with more than a pleasing photo. It should respect healthy tissues, support comfortable function and give you clarity about the care your smile may need over time. If excess gum display is concerning you, a personalised consultation can help turn a general concern into a considered, clinically appropriate plan.