Jennifer Lopez's teeth: see her incredible transformation over the years

"J-Lo's teeth have certainly evolved over the years, and it's clear that she's had some cosmetic dental work done to achieve her flawless smile," Dr Mahmood said.  

"Her teeth are now whiter, more uniform, and perfectly shaped, these are the hallmarks of modern cosmetic dentistry."

The dentist spoke on how her "lovely" smile appeared untouched in the early days of her career but "was not as meticulously polished as it is now". 

"Like many people starting out in the industry, Jennifer's teeth reflected a natural beauty that had not yet been enhanced by dental work," he continued. 

Jennifer solidified herself as an icon in the 2000s after breaking into Hollywood with films like Maid in Manhattan, The Wedding Planner, and the much-derided Gigli, alongside her fiancé at the time, Ben Affleck. 

With this rise in star power came a change to her pearly whites: for Dr Mahmood, it is clear the "Jenny from the Block" singer underwent professional teeth whitening treatments. 

"Teeth whitening is one of the simplest and most common procedures for brightening a smile," he explained.

"Given how radiant her teeth became, it's likely she received a professional whitening treatment to achieve that level of brightness. At this point in her career, it's clear she prioritised a camera-ready smile."

During this decade, Jennifer also gave birth to her twins, Max and Emme, whom she shares with ex-husband Marc Anthony. Pregnancy hormones can affect an expectant mom's teeth, causing issues like gingivitis, gum disease and cavities, according to the CDC. 

In extreme cases, their teeth may even fall out as pregnancy loosens the tissues surrounding them. 

Veneers may not be the only work Jennifer has received on her smile; Dr Mahmood believes she may have used Invisalign to achieve her straight teeth, as it allows for a more subtle change without the hassle of traditional braces. 

"Many celebrities opt for Invisalign because it's discreet and effective," Dr Mahmood explained. "It allows them to straighten their teeth without the noticeable hardware of braces, which is ideal for someone always in the spotlight like Ms Lopez."

According to Forbes, the orthodontic procedure can cost anywhere from $3,000 to $5,000 USD, making it affordable and non-invasive and the perfect choice for the star. 

Celebs like Kendall Jenner, Khloe Kardashian and Katy Perry can all thank Invisalign for their perfect teeth. 

Veneers may not be the only work Jennifer has received on her smile; Dr Mahmood believes she may have used Invisalign to achieve her straight teeth, as it allows for a more subtle change without the hassle of traditional braces. 

"Many celebrities opt for Invisalign because it's discreet and effective," Dr Mahmood explained. "It allows them to straighten their teeth without the noticeable hardware of braces, which is ideal for someone always in the spotlight like Ms Lopez."

According to Forbes, the orthodontic procedure can cost anywhere from $3,000 to $5,000 USD, making it affordable, non-invasive and the perfect choice for the star. 

Celebs like Kendall Jenner, Khloe Kardashian and Katy Perry can all thank Invisalign for their perfect teeth. 

As Jennifer continues to stun with her dazzling smile, oral hygiene and maintenance are crucial to her health, said Dr Mahood. 

"She's likely to be very diligent about her oral hygiene and may receive regular professional cleanings and maintenance treatments to keep her veneers and whitening in top shape," he explained. "Veneers can last for over a decade, but they do require care and occasional touch-ups." 

Jennifer's dentist is clearly a wizard, transforming her smile from natural and demure to red-carpet-ready. 

For Dr Mahmood, her transformation is "a testament to how far cosmetic dentistry has come, and how procedures like whitening, veneers, and orthodontics can create a truly ageless appearance."