A smile is a lifetime. — Lifetime Cosmetic Dentistry in Keller, Texas

Dr. Christopher Kim & Dr. Sonya Austin — 40 years combined experience

Dr. Christopher Kim and Dr. Sonya Austin

Dr. Kim & Dr. Austin

Husband & Wife · Doctors

Every Visit, Every Patient

Comfort First

Patient smile transformation — before and after

Smile Transformations

Before & After

"From our family to yours — brightening Keller one smile at a time since 2007."

Dr. Christopher Kim and Dr. Sonya Austin opened Lifetime Cosmetic Dentistry in 2007. In nearly two decades, they've built one of the most trusted practices in the Dallas–Fort Worth area — not through advertising, but through the kind of care that makes patients drive 45 minutes to stay.

Their approach is the same whether you're in for a cleaning or a full smile transformation: take the time, explain everything, never recommend a procedure that isn't needed. The result is a practice where people bring their families, year after year.

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400+ Google Reviews

0 Years

Combined Experience

Best of Best

Living Magazine, 5 Years

What We Do

General · Cosmetic · Restorative

Cosmetic Dentistry

Veneers, whitening, bonding, smile design. The smile you've always wanted, done in one visit when possible.

General & Family Care

Cleanings, exams, fillings, and preventive care for every age. The kind of dentist your kids will actually look forward to.

Restorative Dentistry

Crowns, bridges, implants, and full-mouth rehabilitation. Dr. Kim completed advanced training at Baylor specifically for complex cases.

From Our Patients

This practice is amazing and I have been coming here for years and they still give you top quality care! Angel is very knowledgeable and my crown is always the right size. Also, Dana will always clean your teeth and you will feel like you have impeccably clean teeth! More than 5 stars!

— Jeanne P.

6 reviews · 3 months ago

My entire family has been going here for years and the entire staff is amazing, but Angel is the best! Very kind and friendly, he always makes sure to explain everything to you to make sure you are comfortable during any procedure. Definitely would recommend Lifetime to anyone for any of their dental needs!

— Carly Lubon

5 reviews · 4 months ago

I have been to Lifetime Dentistry for over 10 years. My husband and kids have as well. The level of care, understanding and patience is unmatched. I have some extra gum issues and Dana does a phenomenal job in my cleanings, and Dr. Kim has saved me from needing a few teeth pulled. Jennifer at the front office is very sweet and always has a welcoming smile. Angel helps Dr. Kim during procedures and he is kind, gentle, and explains every step. I recommend them with my eyes closed.

— Dianne Acevedo

3 reviews · 7 months ago

I thought I had dental challenges, but when Dr. Kim saw my teeth, all he said was "no problem." I said, "such confidence." He backed it up with absolute undeniable proof. I love how my smile looks! I am continually amazed by the level of care and concern I experience at this office. My dentist is better than yours!

— Faye Conley

Local Guide · 90 reviews · edited a year ago

First time meeting the new dentist. She was very sweet and super gentle with the work she has to do. Dana was perfect as always.

— Susie Cason

2 reviews · 2 months ago

The Doctors

Christopher & Sonya

Dr. Christopher Kim, DDS attended the University of Texas at Austin and UT Dental School in Houston, completing his residency at Baylor Dental School — where he specialized in implant dentistry and complex full-mouth rehabilitation. He is a delegate of the Fort Worth Dental Society and a member of the American Dental Association.

Dr. Sonya Austin, DDS brings the same warmth to every patient interaction that has defined the practice since day one. Patients consistently describe her as the first dentist to make them genuinely comfortable.

Together, they've built something rare: a practice that feels like it belongs to the neighborhood.

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