Root Canal Specialists | Danville & Pleasanton Endodontists | Ryan Endodontics | Dr. Steven Ryan

What is root canal treatment?

“Endo” is the Greek word for “inside,” and “odont” is Greek for “tooth.” Endodontic treatment treats the inside of the tooth. Root canal treatment is one type of endodontic treatment.

Root canal treatment is necessary when the pulp, the soft tissue inside the root canal, becomes inflamed or infected. Inflammation or infection can have a variety of causes: deep decay, repeated dental procedures on the tooth, or a crack or chip in the tooth. In addition, an injury to a tooth may cause pulp damage even if the tooth has no visible chips or cracks. If pulp inflammation or infection is left untreated, it can cause pain or lead to an abscess.

If you live in or around Danville and Pleasanton and have questions about root canal treatment, call or text us today!

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Meet Our Doctors

Meet Our Endodontic Specialists

Welcome to Endodontic Artistry, where your dental health is our top priority. Our practice is proud to introduce our highly skilled and dedicated team of endodontic specialists who are committed to providing you with exceptional care and expertise.

Dr. Steven Ryan, DDS, MS.

Local Endodontic

Dr. Steve Ryan was born and raised in Northern California and is proud to call Contra Costa County home. Dr. Ryan attended Cal Poly San Luis Obispo, where he received his degree in biochemistry. Dr. Ryan then attended the University of the Pacific School of Dentistry in San Francisco, where he met his wife, who was attending pharmacy school at UCSF.

Dr. Ryan developed an interest and passion for endodontic care during general dentistry practice for six years. To provide the highest level of service for his patients, Dr. Ryan attended the University of Florida, where he obtained his specialty training and master’s Degree in endodontics. Dr. Ryan is a Board-Certified endodontist and a Diplomate of the Americal Board of Endodontics. Currently, only about twenty percent of endodontists have this distinction.

Dr. Harley. Grandin DDS, MS.

Ready to meet you in our Pleasanton office!

Originally from San Francisco, Dr. Harley Grandin earned his dental degree at The University of the Pacific Arthur A. Dugoni School of Dentistry in San Francisco, California. He then attended UCLA’s Advanced Education in General Dentistry – Venice residency. After some time as a general dentist, Dr. Grandin moved to Chicago for his endodontics residency at the University of Illinois. Dr. Grandin has been published for research in advancements in dentin bonding, the use of CAD/CAM technology in restorative dentistry, and the characterization of bioceramic materials in endodontics.

You can find him producing music or spending time with his dogs outside the office.

Dr. Katherine Le, DDS, MS.

Dr. Kat welcomes you to RyanEndo!

Dr. Katherine Le was born and raised in Wichita, KS. After attending Johns Hopkins University, where she received her B.S. in Molecular and Cellular Biology, Dr. Le received her DDS degree from the University of California, San Francisco (UCSF).

During dental school, she was awarded a research fellowship at the NIH National Institute of Dental and Craniofacial Research, where she studied salivary gland cell function. After dental school, she trained at the University of Washington School of Dentistry, where she received her certificate in endodontics and a Master of Science in Dentistry. Her master’s research thesis focused on regenerative endodontics.

Outside the office, Dr. Le enjoys trying new restaurants, traveling, and spending time with her dog, Appa.


(925) 552-0490

Text Us

(925) 552-0490

Hours of Operations

Monday-Friday: 8:00am - 5:00pm
Saturday-Sunday: Closed

Danville office serving Alamo, Diablo, Blackhawk, San Ramon, Rossmore, Walnut Creek, Lafayette, and Orinda.
Pleasanton office serving Dublin, Livermore, Tracy, Fremont, Union City, Mountain House, and Sunol.