Dentistry that feels like kindness, the way it should.
Dr. Sarah Kim, DDS provides gentle family, restorative, cosmetic, and emergency dental care for patients throughout Union City and the East Bay. Our Dyer Street office is convenient for families looking for a dentist near Decoto Road or Union Landing.
exam + x-rays + cleaning
Comprehensive dental care
in Union City, CA.
From routine cleanings to complete smile transformations — all in one welcoming office on Dyer St.
Dental Checkup & Cleaning
Comprehensive oral exam, digital x-rays, and professional cleaning to remove plaque, tartar, and surface stains.
Learn more →02 — UrgentEmergency Dental Care
Same-day care for toothaches, broken teeth, lost fillings, and dental injuries.
Learn more →03 — RestorativeDental Fillings
Tooth-colored composite fillings that restore strength and blend naturally with your smile.
Learn more →04 — PeriodontalDeep Cleaning
Scaling and root planing to treat gum disease at its source.
Learn more →05 — RestorativeRoot Canal Treatment
Precise endodontic treatment to save an infected tooth and eliminate pain.
Learn more →+8 moreView All Services
Fillings, crowns, bridges, deep cleaning, dentures, smile makeover, nightguards, and more.
See all services →
Dr. Sarah Kim, DDS
Dr. Kim earned her Doctor of Dental Surgery from UT Health San Antonio School of Dentistry. She brings expertise in conservative, minimally invasive dentistry alongside advanced training in dental implants and laser dentistry.
Her approach begins with listening. No unnecessary treatment, no pressure. Just honest, gentle care.
Why Union City patients
choose Smile Kind.
We Listen, Then We Treat
Every appointment begins with a real conversation about your concerns, goals, and comfort level.
Transparent Recommendations
We explain every option clearly — including cost, timeline, and alternatives.
Preserve What’s Yours
Our minimally invasive philosophy means we only do what’s genuinely necessary.
No insurance? No problem.
Your first visit, made easy.
Comprehensive exam, full-mouth x-rays, and a professional cleaning.
Your Union City
dental home.
4138 Dyer St Suite #3
Union City, CA 94587
Monday: 10AM–6PM
Tuesday: 10AM–6PM
Friday: 10AM–6PM
Saturday: 10AM–6PM
Union City neighborhoods near Decoto Road and Union Landing · Fremont · Hayward · Newark · Alameda County