Specialist Endodontist
Near San Ramon
San Ramon patients reach our Sunnyvale specialist endodontic office in about 45 min via I-680 S — for microscope-guided root canal treatment, retreatments, and apicoectomy procedures from a Specialist Endodontist.
Why San Ramon Patients Choose Dr. Kung
From San Ramon and Dougherty Valley, I-680 S is a straight shot — about 45 minutes outside the I-680 commute window.
Microscope-Guided Precision
Every procedure performed under the Zeiss OPMI operating microscope — the standard of care for specialist endodontics.
Same-Day Emergency Care
Tooth pain can't wait. We hold appointments for urgent cases every day, including weekends.
Your Dentist Stays Informed
A detailed clinical report goes to your referring dentist after every visit — you're in good hands, and so is your care team.
Serving the San Ramon community
San Ramon patients drive to Sunnyvale primarily for retreatment of failing root canals, apicoectomy, and complex diagnostic cases where the CBCT changes the treatment plan. We make every effort to consolidate the work into a single appointment so you don't have to make the drive twice.
Neighborhoods we see patients from
- Westside
- Dougherty Valley
- Country Club
- Twin Creeks
- Canyon Lakes
- Gale Ranch
Why San Ramon patients come to us
- Microscope-guided retreatment of failing root canals
- Apicoectomy / endodontic microsurgery
- CBCT diagnostic imaging for complex cases
- Second-opinion consultations
Driving from San Ramon
From San Ramon take I-680 S through Sunol, then CA-237 W to El Camino and Hollenbeck. Typical drive time is 40–60 minutes depending on East Bay traffic.
Treatments Available
All services are performed at our Sunnyvale office, a short drive from San Ramon.
Root Canal Treatment
Single or multi-rooted teeth treated under the operating microscope for precision and comfort.
Endodontic Microsurgery
Apicoectomy when retreatment isn't feasible — performed with surgical-grade magnification and ultrasonic instrumentation.
Root Canal Retreatment
Failed or symptomatic prior root canals rescued with advanced imaging (CBCT) and microsurgical techniques.
Cracked Tooth Evaluation
Diagnosis of incomplete fractures — the most common cause of unexplained tooth pain.
Emergency Root Canal
Same-day evaluation and management of severe toothache, swelling, and dental trauma.
What Patients Say
4.9 stars across 193 reviews on Google, Yelp, and Healthgrades.
"I was terrified of root canals. Dr. Kung made it completely painless. I actually fell asleep during the procedure."
— Patient from the South Bay
"Came in with severe tooth pain on a Saturday. They saw me within the hour and I was pain-free by evening."
— Emergency patient
"The most technologically advanced dental office I've ever visited. The microscope setup is impressive."
— Referred patient
Common Questions
How far is your Sunnyvale office from San Ramon?
We're at 1565 Hollenbeck Avenue, Suite 106, Sunnyvale — about 37 miles and 45 min from San Ramon via I-680 S. Free parking on-site.
Is the drive worth it for a specialist?
Many of our San Ramon patients are referred by their general dentist for cases that genuinely benefit from a specialist — a microscope-guided retreatment, an apicoectomy, or a CBCT-guided diagnosis. For routine fillings and cleanings your local San Ramon dentist is the right call. For complex endodontic work, the specialized tools and training make the drive worthwhile.
Do you offer evening or weekend hours for San Ramon patients?
Yes. We're open Monday–Friday until 7 pm and Saturday–Sunday from 8 am to 3 pm — useful for San Ramon patients who want to avoid commute-window traffic.
Is Dr. Kung a specialist endodontist?
Yes. Dr. Kung is a Specialist Endodontist who completed a full two-year graduate residency and earned his MS in Endodontics from OHSU. He is an active member of the American Association of Endodontists (AAE). His specialist credentials come from his accredited graduate residency and MS degree in Endodontics.
What do I do if I have a dental emergency in San Ramon?
Call (669) 234-2354 right away. We hold emergency slots every day including weekends. The drive is about 45 min and we'll do our best to see you the same day.
Easy access from: Bishop Ranch · Central Park · City Center Bishop Ranch · Crow Canyon · Forest Home Farms
Also serving nearby communities:
Ready to Schedule?
Most San Ramon patients reach us in under 15 minutes. Same-day appointments available for dental emergencies.
1565 Hollenbeck Avenue, Suite 106, Sunnyvale, CA 94087