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Doctors blamed Nicola’s ‘nagging toothache’ on a sinus infection – it stole her smile, half her face and her life

Published on May 22, 2025 at 11:27 AM

WHEN Nicole Kowalski-Kleinsasser first began experiencing a nagging toothache doctors passed it off as a run-of-the-mill sinus infection.

Little did she know, it was the first sign of an that would eventually take her smile, her face, and – years later – her life.

Close-up of a woman's face showing the effects of cancer treatment.
Nicole lost half her face to cancer
Portrait of Nicole Kowalski-Kleinsasser.
Her first symptoms were tooth and jaw pain that docs brushed off as an infection
A smiling couple posing for a selfie.
She died in 2023, leaving behind her husband Eric (pictured)

In 2017, when she was 25, the seemingly innocuous symptoms began – a that wouldn’t go away.

At first, dentists and doctors couldn’t find anything wrong.

Nicole who was living Nevada, US, was told it might be or a and was given that did nothing.

Eventually, revealed bone loss in her jaw.

She was referred to a surgeon who found a mass near a molar and ordered a biopsy.

The procedure was traumatic as the numbing agent failed, and Nicole felt every painful tug as the surgeon removed her tooth.

“I’ve never felt pain like that in my life,”;; she said in a viral TikTok video.

“I could feel every single thing that he was doing,”;; she said.

“At this point I’m yelling with my mouth open, I’m bawling and crying and he’s not stopping.

“I love horror movies and this is what I imagine being in a horror movie would be like.”;;

The initial biopsy came back negative, but the tumour was removed.

This time, tests confirmed salivary gland cancer.

Excruciating pain

Nicole faced 30 days of , which she described as “next level painful.

“It’s burning your skin,”;; she said.

“My burns were inside my mouth and I usually equate it to swallowing acid or glass.

“It was excruciating pain, and I was incredibly tired.

“There was a period of time during the first round that I just don’t know. I lost a week.”;;

Woman with facial bandages and scars after cancer surgery.
Surgeons removed four teeth, the roof of her mouth and part of the outside of her face
Black and white photo of a woman wearing a headscarf, winking at the camera.
The extensive operations left her without a smile

She was fitted with a prosthesis called an obturator to close the hole in her mouth and help her speak, eat, and drink.

Held in place by wires and delicate fittings, it was painful and needed constant adjustments.

NO MORE SMILE

Nicole recovered from surgery, but pain was constant.

Her teeth began shifting, which she found deeply distressing.

“I lost my smile,”;; she said.

“I’ve had this smile all my life. And it’s just gone. It was a really devastating experience to have that happen, to have them shift like that.”;;

Doctors believed — the death of tissue — was to blame.

But a biopsy revealed the cancer had returned, forcing Nicole to undergo another operation removing more of her mouth and seven teeth.

After a second round of radiotherapy, she was cancer-free and resumed a normal life.

She pursued a master’s degree, then a doctorate in psychology.

CANCER RETURNS

Nicole exercised, spent time with family and friends, and met Eric Kleinsasser, who she married and described as the love of her life.

Eric said: “Nicole had this joy for everyday life that was contagious. It’s one of the first things I fell in love with.

“She was constantly learning, constantly growing.”;;

In April 2022, after two healthy years, the cancer returned again.

Doctors removed part of the outside of her face and rebuilt it with skin grafts from her leg.

Nicole found this hard – she had only just become comfortable with her appearance after previous surgeries.

Financial and insurance issues added to the stress.

“It wasn’t just stressful, it was dehumanising,”;; her husband added.

Nicole became an advocate, sharing her story on as @nicolescrookedsmile.

A woman in a graduation gown poses in front of a fountain.
She pursued a master’s degree, then a doctorate in psychology.
Woman in floral dress holding a bouquet of sunflowers.
‘Nicole is the most beautiful person I will ever know,’ Eric says

“She didn’t always feel strong,”;; Eric said.

“She’d say, ‘This doesn’t feel like courage. It just is.’ But to me — to everyone — she was the embodiment of it.”;;

Nicole died on January 23 at UCLA Santa Monica, aged 33.

Eric said: “Nicole is the most beautiful person I will ever know. She taught me to see beauty in places I never thought to look.

“She lived forward, always.

“And she didn’t just survive.

“Even when she was in unbearable pain, she was thinking about how to make others feel less alone.

“Even when she was in unbearable pain, she was thinking about how to make others feel less alone.”;;

“Nicole gave everything she had to this fight. Now it’s our turn to carry her voice.”;;

Photo of a smiling couple embracing.
Despite everything she suffered, Eric believes his wife never lost hope

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