Fixing Gummy Smile
Fixing Gummy Smile | Causes and Treatments Options
Many adults feel self-conscious about their smile, not because of their teeth, but because they show more gum than they’d like when they smile. This is called a gummy smile, and it can make people feel uncomfortable, even if their teeth are healthy. There are different reasons for a gummy smile. Dentists in Brisbane can help you understand the cause and discuss which treatment options might work for you.
What Counts as a Gummy Smile?
A gummy smile is simply when more gum shows above your upper teeth than you feel comfortable with. Dentists sometimes refer to it as “excessive gingival display”. For most adults, it’s not a health problem at all; it’s more of a cosmetic concern, focusing on how their smile looks and how confident they feel when laughing or taking a photo. Some people show a little gum and barely notice it, while others feel it draws attention away from their teeth. What counts is whether the balance between your gums, teeth, and lips feels right to you.
How Much Gum Is Usually Visible in an “Ideal” Smile?
Dentists often use a simple guideline: when someone smiles, up to about 2 millimetres of visible gum tends to look balanced. Once there’s 3 to 4 millimetres or more, people often describe the smile as “gummy.” It’s not a strict rule, but it helps explain why some adults feel bothered by the way their smile looks.
What Causes a Gummy Smile?
Genetic factors can sometimes cause a person’s smile to display excess gum tissue. Generally speaking, a gummy smile can be the result of issues with your teeth, lips, jaws, or gums. Dentists can diagnose the underlying cause of your gummy smile and recommend the best treatment option:
Teeth That Look Short
Sometimes teeth only look short because the gums sit higher than they should. In these cases, the gums haven’t moved to their proper position as the teeth erupted, so part of the enamel stays tucked under extra tissue. The teeth themselves are usually completely normal in size — they just look smaller, which throws off the balance between teeth and gums.
Upper Jaw Growth Pattern
In some people, the upper jaw grows a little longer in the vertical direction, which naturally brings more gum into the smile zone. It’s a growth pattern that often runs in families and isn’t always obvious until someone notices their gums showing more than their teeth in photos. When the jaw shape contributes to a gummy smile, treatment options tend to focus on the bigger structural picture rather than the gums alone.
Upper Lip Movement
In some people, the muscles around the upper lip are simply more active than average. When they smile, the lip lifts higher than most, almost like it’s giving the smile a little extra boost — and that extra lift brings more gum into view. Nothing about the gums or teeth is unusual here; it’s the way the muscles behave when the smile is in full motion.
Short Upper Lip
A shorter upper lip naturally reveals more of the gum line, even when everything else — teeth, gums, jaw — is perfectly proportioned. Some people only realise this after comparing photos of themselves and a family member with a slightly longer lip. It’s a structural trait, not a problem, but it does change how much gum shows during a big smile.
Gum Overgrowth (gingival hyperplasia)
Gum tissue can sometimes thicken or swell, especially if irritated by plaque, certain medications, or mouth breathing. When gums get larger, they cover more of the teeth and make them look smaller than they are. This makes the whole smile look “gummier,” even though the teeth are normal in size.
Bite Alignment Issues
A deep bite or strong overbite can tilt the upper teeth and gum line forward, so the gums are more visible when you smile. Your gums and teeth may be healthy, but the bite changes how your smile looks. Fixing the bite often reduces how much gum shows, without needing to treat the gums directly.
Medication-Related Gum Overgrowth
Some medications or certain blood pressure tablets may cause the gums to grow thicker over time. When this happens, the teeth appear shorter, and the smile looks much “gummier” than before.
When Should Someone Consider Treatment?
There isn’t a strict rule about when a gummy smile needs attention, but there are moments when people realise it’s starting to affect everyday life. Sometimes it’s about confidence, sometimes it’s about comfort or gum health, and sometimes it’s tied to the way the teeth and jaw are working together.
Treatment Options for a Gummy Smile
Dentists do not use the same treatment for everyone. They choose the treatment based on what is causing the extra gum to show, whether it is the gums, the bite, the jaw, or the way the lip moves:
Gum Contouring
When the gums cover more of the teeth than they should, a small contouring procedure can reveal the natural tooth shape underneath. Many dentists use a laser for this because it is precise and usually gives a smooth, even result.
Crown Lengthening
If the gum sits too low and the bone underneath also needs adjustment, crown lengthening creates more space for the tooth to show. This procedure reshapes both the gum and the supporting bone to give the smile better balance.
Orthodontic Treatment (braces or Invisalign)
Sometimes the gums look more noticeable because the bite is deep or the teeth are angled in a way that pushes the gum line into view. Straightening the teeth or correcting the bite can change how the smile looks, even without treating the gums.
Anti-Wrinkle Injections (Botox)
For people whose upper lip rises higher than expected when smiling, a small amount of muscle-relaxing injections can soften that lift. The effect is temporary and needs regular top-ups, but it’s a simple option for cases linked to lip movement.
Lip Repositioning Surgery
This procedure lowers the position of the upper lip so it doesn’t rise as far when you smile. It’s useful in selected cases, but not all clinics offer it — and it’s important to know whether the cause is truly lip-related before considering surgery.
(It’s worth mentioning that our clinic doesn’t offer this surgical procedure.)
Veneers or Crowns
If the teeth naturally look short and the gums are fine, veneers or crowns can add length and balance to the smile. They don’t treat the gums or jaw, but they can improve proportions when tooth size is the main factor.
Jaw Surgery (Orthognathic Surgery)
When the upper jaw has grown longer than average, and the gummy smile is part of a bigger jaw alignment issue, surgery may be the most stable solution. It’s only recommended in more significant cases and is planned carefully with an oral surgeon and an orthodontist.
Medical Disclaimer
The information in this article is general in nature and is not a substitute for personalised dental or medical advice. Every person’s situation is different, and any concerns about your teeth, gums, bite, or smile should be assessed by a qualified dentist who can provide guidance based on your individual needs.
