Dentistry + Aesthetics
We are the perfect blend of dentistry and aesthetics
We help you to navigate aging gracefully
Longevity Expertise Brings the Best of Both Worlds.
More Than a Dental Practice A Longevity Approach
Every treatment we offer is backed by science and designed to enhance both function and confidence. The connection between aesthetics and mental well-being is undeniable — studies show that treatments like Botox, Fillers, EmFace, EmSculpt Neo, and EmSella not only refine appearance but also significantly reduce depression, improve self-esteem, and enhance social and psychological functioning.
Why Longevity Expertise?
Expertise Rooted in Science: We merge the latest in medical aesthetics, functional dentistry, and longevity treatments to create customized, evidence-based plans for every patient.
Comprehensive Care: Whether it’s restoring oral health, enhancing facial structure, improving muscle tone, or supporting hormonal and neurological wellness, we take a whole-body approach.
Results You Can Feel: Beyond aesthetics, our treatments help improve mental clarity, energy levels, and even intimate wellness — because every detail of your health matters.
Meet
Dr. Finnessy
Dr. Libbi Finnessy is a dentist, medical aesthetics expert, and a truth-teller who believes science and beauty go hand in hand. As the founder of Longevity Expertise, she’s built a career on transforming smiles and lives — but her impact goes far beyond the surface.
A Midwest native, graduating Summa Cum Laude with a Biomedical Sciences degree, Dr. Libbi also earned her Doctorate of Dental Surgery from Marquette University in Milwaukee, WI.
Known for her unfiltered honesty, quick humor, and ability to make people laugh, especially in a dental chair, Dr. Finnessy doesn’t shy away from real conversations. She once joked about starting a podcast called “The Brutal Tooth”— because she believes in brutal honesty, authenticity, and tackling the conversations no one else will.
She believes that mental illness should be talked about as openly as Botox and Veneers and that shame has no place in healthcare. Her work merges medicine, aesthetics, and raw human connection, proving that people deserve to be seen — not just as patients, but as whole individuals.
When she’s not in the clinic, you can find her painting and creating pieces of art, pushing boundaries, and saying the things people are too scared to say out loud.
Founder, Longevity Expertise | Making People Laugh & Telling the Truth/Tooth
Our
Practice
Friendly Atmosphere
Dr. Elizabeth (Libbi) Finnessy’s philosophy is rooted in exceptional care. She prioritizes your overall health and attentively listens to your needs and desires. Her warm personality and sense of humor make patients look forward to visiting the dentist or even just stopping by her office for a latte and a chat.
Advanced Technology
When you choose our office, our team integrates cutting-edge medical devices and technology to enhance your dental and aesthetic care. Our 3D scanner ensures fast, precise digital impressions, and our 3D-in-motion video technology creates true replicas for perfectly executed fit and finish.
Team you can Trust
The Longevity Expertise team has over 50 years of combined experience and continues to advance their education and technology. We prioritize your overall health, treating you like family. Our office is welcoming, with a friendly atmosphere and great coffee, making it far from the stereotypical dental office. You’ll look forward to each visit!
Intraoral Camera and Digital Imaging
Dr. Libbi uses intraoral camera technology to enhance your diagnosis, capturing detailed images of your mouth, teeth, and gums that might be missed with standard mirrors. We carefully choose when to take radiographs, following strict guidelines. Radiographs help us detect cavities, determine bone health, examine roots and nerves, diagnose lesions, and assess trauma damage.