Specialist Endodontist
Near Concord
Concord patients reach our Sunnyvale specialist endodontic office in about 60 min via I-680 S — for microscope-guided root canal treatment, retreatments, and apicoectomy procedures from a Specialist Endodontist.
Why Concord Patients Choose Dr. Kung
From Concord, I-680 S is the standard route — about an hour to our Hollenbeck office 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 Concord community
Concord 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
- Downtown
- Clayton Valley
- Crystyl Ranch
- Northgate
- Dana Estates
- Sun Terrace
Why Concord 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 Concord
From Concord take I-680 S through Walnut Creek, Danville and Sunol, then CA-237 W to El Camino and Hollenbeck. Typical drive time is 60–80 minutes.
Treatments Available
All services are performed at our Sunnyvale office, a short drive from Concord.
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 Concord?
We're at 1565 Hollenbeck Avenue, Suite 106, Sunnyvale — about 50 miles and 60 min from Concord via I-680 S. Free parking on-site.
Is the drive worth it for a specialist?
Many of our Concord 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 Concord 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 Concord patients?
Yes. We're open Monday–Friday until 7 pm and Saturday–Sunday from 8 am to 3 pm — useful for Concord 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 Concord?
Call (669) 234-2354 right away. We hold emergency slots every day including weekends. The drive is about 60 min and we'll do our best to see you the same day.
Easy access from: Mount Diablo State Park · Todos Santos Plaza · Concord Pavilion · Concord BART · Diablo Creek
Also serving nearby communities:
Ready to Schedule?
Most Concord patients reach us in under 15 minutes. Same-day appointments available for dental emergencies.
1565 Hollenbeck Avenue, Suite 106, Sunnyvale, CA 94087