Millie Bobby Brown has become one of the most talked-about young stars in Hollywood — not just for her powerhouse performances, but for her striking physical transformation over the years. Among the most discussed changes is her smile. Fans and dental experts alike have closely tracked the evolution of Millie Bobby Brown’s teeth before and after her rise to global fame, noting a remarkable shift from her early Stranger Things days to her polished, red-carpet-ready look today. Here is everything you need to know about her dental journey.
Who Is Millie Bobby Brown?
Born on February 19, 2004, in Marbella, Spain, and raised in England, Millie Bobby Brown first captured the world’s attention in 2016 with her breakout role as Eleven in Netflix’s Stranger Things. She was just 12 years old at the time. Over the course of nearly a decade, she grew from a child actress into a global icon — an Emmy-nominated performer, entrepreneur, and founder of her own beauty brand, Florence by Mills. As reported by Hello Magazine, she turned 22 in February 2026, celebrated her first birthday as a new mother after welcoming a daughter via adoption in August 2025, and wrapped the final season of Stranger Things in late 2024. Throughout all of this, her changing appearance — including her teeth — has never been far from public conversation.
Millie Bobby Brown Teeth Before: The Early Years
When Millie first appeared on screen in Stranger Things in 2016, her smile was exactly what you would expect from a 12-year-old: natural, youthful, and slightly imperfect. According to dental professionals who have analyzed her early photos, her teeth showed the kind of minor issues common to teenagers. Her canines were slightly pointed and angled outward, and there was mild crowding among her front teeth, causing a few of them to appear slightly crooked. Her enamel shade was also uneven, as is typical of natural adolescent teeth.
These were not severe dental problems by any standard. In fact, many fans found her natural smile charming and relatable. It added to the authenticity of her character and her appeal as a young actress. However, as cosmetic dentists analyzing her transformation have pointed out, there was clearly room for refinement — and that refinement came in stages.
When Did the Change Happen?
The most noticeable shift in Millie Bobby Brown’s teeth occurred between approximately 2019 and 2021. Fans who followed her closely through award shows and red carpet appearances began noticing that her smile was looking progressively straighter, whiter, and more symmetrical. As per dental expert assessments published by Europe Dental Clinic, by around age 16, she had debuted a markedly straighter and brighter smile that sparked widespread fan discussion. The transformation was not overnight — it unfolded in deliberate phases that suggest a carefully planned dental treatment process.
Millie Bobby Brown Teeth After: What Changed?
The difference between Millie Bobby Brown’s teeth before and after is clear when comparing photographs from her early Stranger Things appearances to her recent red carpet events. Her current smile features perfectly aligned upper and lower teeth, a uniform shape across all visible teeth, a broader and fuller dental arch, and a brilliantly white enamel tone. The previously pointed and slightly misaligned canines are now smooth and proportionate to the rest of her smile. Overall, the transformation reflects what cosmetic dental professionals describe as a smile design that works in harmony with her facial features.
What Dental Treatments Did She Have?
Millie has never publicly confirmed specific dental procedures. However, cosmetic dental experts have analyzed her before and after photos extensively and reached a broad consensus on the likely treatments involved.
Invisalign or Clear Aligners
The foundation of her transformation appears to be orthodontic alignment using clear aligners such as Invisalign. According to Dr. Kelley Fisher and other dental professionals who have commented on her case, Millie most likely used clear, removable aligner trays to straighten her teeth discreetly. This approach is particularly popular among actors because the trays are virtually invisible on camera and can be removed during filming. As noted by Karat Dental Clinic’s analysis, she likely began aligner therapy in her mid-teens, progressively broadening her dental arch and correcting the crowding in her front teeth.
Porcelain Veneers
Following orthodontic alignment, Millie is widely believed to have had porcelain veneers placed on some of her upper front teeth — particularly her canines and potentially her lateral incisors. As per analysis by International Plus dental clinic, her canine teeth in particular underwent a dramatic change in shape, going from sharply pointed to smoothly rounded and perfectly proportioned. Porcelain veneers are thin, custom-crafted shells bonded to the front surface of teeth to improve their shape, size, and color. The key reason orthodontics is typically done first is to minimize the amount of enamel reduction required before veneer placement, preserving more of the natural tooth structure.
Professional Teeth Whitening
The noticeably brighter, whiter shade of Millie’s current smile is also consistent with professional in-office whitening treatments, which offer more dramatic and even results compared to at-home products. This step is commonly the final phase of a cosmetic dental makeover and helps complete the polished, high-definition look seen on her in recent years.
Composite Bonding and Contouring
Some dental analysts, including those at Esnan Dental Clinics, suggest that composite bonding or minor tooth contouring may also have played a role — particularly in evening out incisal edges and creating the micro-aesthetic refinements that give her smile its natural, yet flawless appearance.
A Two-Phase Approach: Why It Matters
What makes Millie Bobby Brown’s dental transformation stand out is that it appears to follow the clinically recommended two-phase approach: orthodontic alignment first, cosmetic enhancement second. This sequence ensures that veneers are placed on properly positioned teeth, resulting in a more natural look, better bite function, and longer-lasting results. Dental professionals frequently cite her case as an example of responsible cosmetic dentistry — enhancing natural beauty rather than replacing it entirely.
Does Millie Bobby Brown Have a Full Set of Veneers?
This is one of the most common questions fans ask. According to analysis by Esnan Dental Clinics, it is unlikely that she has a full set of veneers. Her smile still retains subtle natural variations in tooth shape and texture that are characteristic of natural, well-maintained teeth. The consensus among dental professionals is that she may have selective veneers on a few upper front teeth — primarily the canines and possibly the lateral incisors — combined with clear aligner therapy and professional whitening, rather than a complete veneer overhaul.
Millie Bobby Brown’s Smile in 2025 and 2026
In recent public appearances, Millie’s smile has remained one of her most striking features. However, it is now discussed alongside broader conversations about her overall appearance transformation. During the press tour for The Electric State in March 2025, she faced a wave of media speculation about cosmetic surgery, which she addressed directly in an interview with British Vogue, stating that she grew up in front of the world and that people expected her to remain frozen as the 12-year-old Eleven from Season 1. In November 2025, at the London premiere of Stranger Things Season 5, she went viral when a photographer shouted at her to smile and she fired back, “Smile? You smile!” — walking off the carpet to widespread public support, as reported by Variety.
As per Hello Magazine, she turned 22 in February 2026 and is now navigating adulthood, motherhood, and a thriving career simultaneously. Her smile — confident, polished, and unapologetically her own — continues to be a defining part of how she presents herself to the world.
What Can Fans Learn from Her Dental Journey?
Millie Bobby Brown’s teeth transformation is frequently cited by dental professionals as a model for how young people can approach cosmetic dentistry responsibly. The key takeaways include starting with orthodontic correction before pursuing cosmetic treatments, allowing the jaw and facial structure to fully develop before making permanent changes, choosing minimally invasive procedures that preserve natural tooth structure, and prioritizing dental health alongside aesthetics. Her gradual approach, rather than an immediate and dramatic overhaul, is largely why her smile looks natural and proportionate rather than artificial.
Frequently Asked Questions
Did Millie Bobby Brown have braces? There is no public evidence that Millie wore traditional metal braces. Dental experts believe she used clear aligners such as Invisalign, which are far less visible and more practical for a working actor.
Does Millie Bobby Brown have veneers? Dental professionals analyzing her before and after photos widely believe she has porcelain veneers on some of her upper front teeth, most notably her canines, to reshape and refine their appearance. However, she has not confirmed this publicly.
When did Millie Bobby Brown change her teeth? The most visible phase of her dental transformation appears to have occurred between 2019 and 2021, roughly between ages 15 and 17, though the gradual changes suggest treatment began earlier and continued over several years.
Are Millie Bobby Brown’s teeth natural? Her teeth are believed to be her natural ones, enhanced through orthodontic treatment, professional whitening, and selective cosmetic procedures such as veneers or bonding — rather than a full replacement of her natural dentition.
How white are Millie Bobby Brown’s teeth? Her current smile features a noticeably bright white shade consistent with professional in-office whitening treatments, which deliver more uniform and lasting results than standard at-home whitening kits.
Why do people keep talking about Millie Bobby Brown’s appearance? As someone who has grown up entirely in the public eye since age 12, every change in her appearance — from her teeth to her hair color to her overall styling — attracts significant media and fan attention. She has spoken openly about finding this scrutiny difficult, particularly as a young woman navigating the transition from child star to adult.
Did you notice Millie’s smile transformation? Drop your thoughts in the comments below — we’d love to hear what you think about her dental glow-up!