Irvine Endodontics of Orange County has a comfortable decor

 Irvine Root Canal Specialist

Irvine root canal specialist Sam R. Gharib, DMD and his wise and welcoming endodontic staff are dedicated to personal service and expert, gentle root canal treatment with compassion and care. Dr. Gharib, a board certified endodontist, uses modern endodontic treatment that has little or no discomfort.


Sam R. Gharib, DMD

At Irvine Endodontics of Orange County, our focus is to decrease anxiety by removing our patient’s fears of the unknown. Sam R. Gharib, DMD will prepare you for what to expect before each endodontic test and root canal process. Dr. Gharib will explain your root canal problem, and review every choice you have available to save or replace your tooth.

Cone Beam CT

Our Irvine, California facility has all of the recent advances in endodontic treatment including lower radiation dental digital x-ray. We are the first endodontic office in Irvine to have a micro Cone Beam CT (CBCT) unit for 3D examination of teeth. 

Board Certified Endodontist

With more clinical experience and the latest root canal equipment, the Endodontics of Orange County dental team is able to provide root canal treatment that helps your tooth heal and bite for the rest of your life. If you are not sure whether your tooth should really be extracted and replaced with an implant or bridge, call for an appointment with Board Certified Endodontist Sam R. Gharib, DMD in Irvine, California.

Irvine Endodontics

We hope that browsing our website will help you learn more about Irvine Endodontics of Orange County, root canal procedures, and alternative procedures to root canal treatment. Please frequent our site as a dental education resource that will help you make informed decisions about, not only root canal treatment alternatives, but also general dental care procedures.


  • Endodontic Diagnosis
  • Endodontic Treatment
  • Root Canal Treatment
  • Root Canal Therapy
  • Root Canal Retreatment
  • Endodontic Retreatment
  • Apicoectomy
  • Endodontic Surgery
  • Root Canal Surgery
  • Root End Surgery
  • Root Canal Second Opinion
  • Dental Emergencies
  • Additional Services



  • Aliso Viejo       
  • Costa Mesa       
  • Huntington Beach
  • Irvine
  • Laguna Beach
  • Laguna Hills       
  • Laguna Niguel
  • Lake Forest
  • Newport Beach
  • Rancho Santa Margarita
  • Santa Ana
  • Tustin
  • Westminster

Part of our commitment to serving our patients includes providing information that helps them to make more informed decisions about their oral health needs.  This website is a resource we hope you’ll find both useful and interesting.

Please browse through our website and be sure to contact us if you have any questions or would like to schedule an appointment. You may also use our online appointment request form to schedule your appointment. 

Follow Us/Patient Reviews:

Endodontics of Orange County Facebook page link  Peter D. Cancellier, DDS Google Plus link    


Contact Us.We encourage you to contact us with any questions or comments you may have. Please call our office or use the quick contact form.

Contact Us

We encourage you to contact us with any questions or comments you may have. Please call our office or use the quick contact form below.

Testimonials.Read what people are saying about us.


I had a crown that was done about four months ago and it started hurting real bad. It felt like I was being hit in the face with a wet sock full of nickels. I yelped Endodontist and saw Dr. Cancellier's great reviews and he was one of the few doctors open at 8am. They were able to see me the same morning I called and he accessed my tooth and set an appointment for the next morning for the root canal. I heard so many horror stories about root canals so I was scared and nervous. Dr. Cancellier explained the whole process and told me not to worry because he would make it as pain free as possible. He wasn't lying. I fell asleep a couple of times during the procedure cause I was so comfortable. He gave me some pain meds for afterwards when the mouth numbing wears off but I didn't need it at all. Painless during and after. It was an awesome experience. If you need a root canal, save yourself some tears and pain and call this guy right now.


I went to another dentist and was told I needed a ton of dental work to fix a bad root canal, including an extraction and an implant. Well, I am the biggest chicken when it comes to any dental work, so I thought I needed a 2nd opinion. I was so lucky that a friend’s dentist Dr. Uchizono referred me to Dr. Cancellier. Dr. Cancellier had to do a lot of scary things to my tooth, but he did save it. I went in for 2 procedures. I felt no pain. (Not even the shots, which usually take me over the edge). Dr. C and his staff were so nice and caring. I got a phone call the day and a few days later checking on me. I told them I could not believe that I was ok. I laughed and said the only problem I had was that I needed to go in for a massage after the 1st procedure because I was so tense that my shoulders needed to be worked on. The 2nd procedure went as smoothly as the first one. The only difference was that I did not need a massage, because I knew that I wouldn’t feel any pain. Thank you Dr. C for taking such good care of me and for saving me a ton of money and more, for saving me from experiencing pain.


My dentist sent me to Dr. Cancellier for a bad root canal performed by an out of state endodontist. He was very gentle and took a lot of time with me. He noted that I had a significant amount of infection in my sinus and requested that I see an ENT before treating me further.

Later, it was determined I needed another root canal on another tooth which was discovered after I had returned to Dr. Cancellier after nasal surgery because the nerve had died. I was not looking forward to it because of the poor experience I had with a root canal at the other endodontist. The experience I had with Dr. Cancellier couldn't have been different. Both Dr. and staff were gentle and the procedure was done in half the time and with virtually no discomfort. I walked out of his office an extremely happy person.


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