Lena Dunham has penned a personal essay about why she won't be getting the perfect Hollywood mega-watt smile anytime soon, despite being advised to by her publicist.

Writing for Vogue, the 31-year-old actress explained that when she first became famous, she quickly realized that not many others in her industry had their 'own teeth'.

And when she did a search of her name on Twitter, she found that there were an 'alarming number of comments about my teeth'.

All smiles: Lena Dunham, 31, has penned a personal essay about why she won't be getting the perfect Hollywood mega-watt smile anytime soon, despite being advised to by her publicist

Unique: Writing for Vogue, the actress explained that when she first became famous, she quickly realized that not many others in her industry had their 'own teeth'

Touchy subject: However, after a former publicist broached the subject of tooth-whitening with her, Lena admitted that she started researching teeth whitening

Explaining that a former publicist once asked her creative partner to broach the subject of tooth-whitening with her, Lena admitted that she started researching the process and dreamed of 'a world in which my front teeth would be so white that their gargantuan size might even be a plus.'

And as she has in the past got her eyebrows tattooed on and get hair extensions, she initially felt open to reconsidering her stance on her teeth.

'As with so many women, my relationship to the trappings of beauty changes every day. And from the first time I read a tooth criticism online, I developed the habits of the suddenly self-conscious, pursing my lips at inopportune times like I'd just sucked down half a lemon,' she explained.

She even spoke to Manhattan-based dentist Mojgan Fajiram who specializes in cosmetic dentistry to find out more on the subject.

The Brooklyn resident then spoke to Michael Apa, 'a dental rockstar' who has practices in New York and Dubai, as well as a line of at-home teeth whitening products sold on Net-a-Porter.

And while Lena had felt hesitation towards teeth whitening in the past, she made an appointment.

'Soon you'll barely recognize me. I will be the Sandra Bullock of this office!' she says she bragged to co-workers.

However, when a friend warned her about how painful teeth whitening can be, she cancelled her appointment and also started to explore if pearly whites would suit her personality and personal style.

Research: She spoke to two Manhattan dentists about getting her teeth whitened and decided to make an appointment to go through with the treatment

Questions: However, once she decided to whiten her teeth, Lena started to question whether she was buying into a homogenized version of beauty and if she felt comfortable with that

Own terms: She concluded that she was content with her teeth growing more 'dingy by the day, on my terms', pictured with Oscar winner Brie Larson

'What if the whiteness of my new teeth doesn't match the rest of my face— freckled, uneven, and often makeup-free? Will it be the equivalent of a heavy-handed spray tan on someone who refuses to leave their Maui hotel room? And, perhaps most pressing, how good will this really make me feel?' she wrote.

She also started to question the 'socialist' context of having a perfect smile, and asked her dentist if people were whitening their teeth to look richer.

And although she cancelled her appointment twice before re-booking a third visit, when the day of her teeth whitening rolled around, a walk around her neighborhood convinced Lena that teeth whitening and buying into a homogenized version of beauty wasn't for her.

'I feel deeply that it is our differences that unite us; that it is the strange details of our faces that make us so totally human. If the mouth is a third window to the soul, then I want mine to look like someone has punched their way through it in a mad rage,' she mused in the piece.

And cancelling her appointment for the third and final time, she concluded that she was content with her teeth growing more 'dingy by the day, on my terms'.

'I will continue on: beaver-toothed, yellowed, enraging the internet one post at a time with a smile only a mother could love,' she added.