Bubyeong Gummy Smile Treatment, Causes and Solutions for Excessive Gum Display When Smiling — Complete Guide
Author: Yang Seong-won (Oral and Maxillofacial Surgery Specialist, Founder) This content has been prepared in compliance with the Medical Practice Act and related laws.
If you're concerned about gummy smile in Bubyeong — First, check the cause
3-Line Summary ✓ Gummy smile is a condition where the upper gum shows 3mm or more when smiling, with causes varying across muscle, gum, bone, and tooth factors. ✓ Since different causes require different treatments, starting treatment without precise diagnosis can make your smile appear awkward instead. ✓ By choosing methods appropriate to the cause—such as gum contouring, botox, and vestibuloplasty—you can achieve improvement without burden.
If your gums show excessively when you smile and you naturally find yourself covering your mouth with your hand, you've probably heard the term "gummy smile" before. Gummy smile, also called gum laugh, refers to a state where the upper gum becomes overly exposed when smiling. According to an expert column in PharmNews, cases where gum is exposed 3mm or more above the upper lip when smiling broadly are defined as gummy smile.
The important point is that the cause of gummy smile is not just one factor but stems from various structural factors including muscle, gum, tooth, and bone. So as emphasized in Dental Today reporting, if you decide on treatment before accurate cause diagnosis, the result may feel awkward. To avoid an awkward smile or worsening gum health, it is most important to first identify what is causing your gummy smile before treatment.
Why does gummy smile occur? 4 causes and customized treatment methods
Gummy smile is classified into different causes depending on which structure—muscle, gum, tooth, or bone—the problem originates from. Multiple medical specialty media including Dental Today and PharmNews commonly classify four causes, and we've organized the treatment direction for each.
Cause ① When gum excessively covers the tooth (gum overgrowth)
When permanent teeth erupt, if the gum does not recede sufficiently toward the tooth, it will excessively cover the crown portion of the tooth. In this case, the teeth appear shorter and the gum appears wider than actually are.
→ Customized Treatment: A typical method is gingivectomy (gum contouring) using laser to organize the gum line. According to related clinical data, laser procedures have minimal bleeding, fast recovery, and procedure time is often within 30 minutes to 1 hour. However, according to a periodontics specialist article in Dental Arirang, simple laser excision alone can result in recurrence as gum regrows, and in some cases, alveolar bone contouring must be combined to prevent recurrence.
Cause ② When the upper lip elevator muscle is excessively active
The movement of the upper lip rising when smiling is handled by a muscle called the upper lip elevator. If this muscle is excessively strong, the lip is excessively pulled toward the nose, leaving the gum exposed.
→ Customized Treatment: According to Hidoc Expert Column, injecting botox into the upper lip elevator muscle weakens muscle activity, naturally reducing gum exposure. While the procedure itself is relatively simple, if muscle hyperactivity is not the cause, the effect is difficult to expect, and accurate injection site judgment by a skilled specialist is necessary.
Cause ③ When the upper jaw bone (maxilla) grows excessively
If the upper jaw grows excessively downward or forward beyond necessity, the upper lip becomes structurally shorter, failing to fully cover the gum at rest or when smiling. Some cases are congenital, while some are influenced by poor oral habits during growth periods.
→ Customized Treatment: When skeletal cause is the primary issue, treatment difficulty is highest among the four causes. According to clinical data, gum contouring alone has limitations, and whether orthodontics or surgical intervention is necessary must be separately reviewed through precise diagnosis.
Cause ④ Tooth ratio or bite problems
If teeth are small or positioned unevenly, the gum area relative to teeth appears relatively wide, creating the appearance of gummy smile.
→ Customized Treatment: Methods such as orthodontics or laminate can be applied to adjust tooth ratio and alignment.
Additional Option — Vestibuloplasty
According to PharmNews, vestibuloplasty is a surgery that reduces the depth of space (vestibule) where the upper lip can rise, limiting lip movement. It can be applied separately from the four causes above, but given high difficulty, it is advisable to consult carefully with a specialist experienced in the procedure before deciding.
[Cause-Specific Treatment at a Glance]
| Cause | Primary Treatment | Features |
|---|---|---|
| Gum overgrowth | Gingivectomy (gum contouring) | Laser procedure, recovery within 1-2 weeks |
| Upper lip muscle hyperactivity | Botox | Simple procedure, effective when muscle-related |
| Maxilla overgrowth | Orthodontics / Surgical procedure | High difficulty, precise diagnosis essential |
| Tooth ratio/bite problems | Orthodontics / Laminate | Improves tooth position and size |
| Excessive vestibule | Vestibuloplasty | Limits upper lip movement itself |
How Now dental clinic approaches gummy smile treatment
The key to gummy smile treatment is 'accurately identifying your cause first' rather than 'which procedure to choose'.
At Now dental clinic, an oral and maxillofacial surgery specialist directly analyzes the cause, and applies conscious sedation when necessary to proceed with aesthetic treatment without burden. After comprehensively reviewing the symmetry of the gum line, alveolar bone condition, and the correlation between smile line and tooth ratio, we discuss the treatment direction suited to each individual's facial characteristics.
Operating aesthetic treatment (tooth contouring) as a specialized service, we can approach everything from simple gum line adjustment to full smile line design in one place. For natural and highly satisfying results, we develop treatment plans considering detailed elements such as gum thickness, the amount of keratinized gum around teeth, and the overlap degree of upper and lower front teeth.
If you find dental visits themselves frightening or anxiety-inducing, you can utilize the conscious sedation (sleep treatment) option. It can be applied to aesthetic treatments related to gummy smile as well, allowing you to complete the procedure in a comfortable and stable state.
This suits you well — Self-check before treatment & things to know before
If any of the following items apply, consider consulting.
✓ When smiling naturally in front of a mirror, upper gum is exposed 3mm or more ✓ When taking photos, you unconsciously cover your mouth or suppress your smile ✓ You've been told that your gum shows more than your teeth ✓ When smiling, your upper lip rises significantly toward your nose ✓ Your gum line appears asymmetrical or uneven left and right
Things to know before treatment — Limitations and precautions
✓ The most common problem after gum contouring is recurrence. If only simple laser excision is performed, gum may regrow and cover teeth again, and in some cases, alveolar bone contouring must be combined to prevent recurrence. ✓ If skeletal cause (maxilla overgrowth) is the primary problem, gum contouring alone has limitations in improvement, and additional orthodontic or surgical approaches may be necessary. ✓ Botox is effective when upper lip muscle hyperactivity is the cause, and may not be suitable for other causes. ✓ For satisfying results, treatment planning that carefully considers individual smile line and facial structure should precede treatment.
If you're looking for a dentist in Bubyeong, Incheon, or residing near Geysan-dong dental clinic or Jakjeon-dong dental clinic, you can conveniently visit Now dental clinic.
Consult comfortably. We'll look into it together from start to finish.
Consult comfortably at Now dental clinic. Our specialists will look into it with you from start to finish.
Once the cause of gummy smile is accurately identified, improvement direction can be found with less burden than expected. It's okay if you don't yet know what the cause is. After your visit, our oral and maxillofacial surgery specialist will comprehensively examine your gum condition, tooth ratio, and lip movement, and discuss treatment direction suited to you.
If you're afraid of dental visits or worried about treatment process, you can receive care in a comfortable state through conscious sedation (sleep treatment) option. Aesthetic treatment is also applicable to the entire treatment process, so please feel free to start with a consultation first.
Frequently asked questions
Q1. Is gummy smile treatment always surgery?
Not necessarily. If the cause is gum overgrowth, it can be adequately improved with gum contouring, and if upper lip muscle hyperactivity is the cause, botox can be sufficient. Only when skeletal problems are the cause does orthodontic or surgical approach become necessary. The first step is identifying the cause through precise diagnosis.
Q2. Does gum contouring recur after treatment?
If only simple laser gum excision is performed, recurrence where gum regrows and covers teeth can occur. To prevent recurrence, sufficient excision combined with alveolar bone contouring in some cases is important. Designing treatment scope accurately from the start is the method that enhances satisfaction long-term.
Q3. I'm afraid of dental treatment, can I still receive gummy smile treatment?
Yes, it's possible. At Now dental clinic, conscious sedation (sleep treatment) can be applied to aesthetic treatments including gum contouring. Those sensitive to anxiety or pain during treatment can complete the procedure in a comfortable and stable state, so please mention it during consultation and we'll guide you through the methods.
This content is provided for informational purposes; specific diagnosis and treatment must be discussed with medical staff.