Endodontics of Orange County - Peter D. Cancellier, D.D.S. - Serving Irvine and Orange County California

Peter D. Cancellier, D.D.S., Diplomate of the American Board of Endodontics

Expert, Professional, and Compassionate Endodontic Care

Recently Voted By His Peers Southern California Super Dentist 2014

We understand going to a new dentist for the first time is not on your bucket list. Say the word Endodontist and if you are like many people, you don't know what the word means. Then when you find out that 'Endo' is the Greek word for 'inside' and 'odont' is the Greek word for 'tooth', you realize that an Endodontist is a Root Canal Specialist. 

Good News. Endodontics of Orange County, Peter Cancellier's Endodontic Specialty Practice is centered on creating a low stress, positive experience in every way. We are Professional, Understanding, Respectful, Caring, and Gentle. We use every available technique and medication to offer painless care. Our clinical goal is to provide endodontic treatment that helps your tooth function without discomfort for the rest of your life. We believe that with a commitment to excellence for every patient, properly diagnosed root canal treatment or re-treatment or root end surgery are desirable alternatives to extraction and a bridge or an implant. Dr. Cancellier has implant training and has placed implants, but he only performs endodontic treatment. Local implant dentists refer patients to him because they know he will not recommend endodontic treatment unless it is the appropriate choice.

For any dentist "Not as bad as I thought it would be" is a win. But we shoot for “Your staff is wonderful. This is a lovely office. I didn’t feel a thing”. At the one year check up we are looking for you to say "Which tooth did you work on? Everything feels great." 

Honesty, for most people, getting a root canal treatment is no big deal. We put on the music that you like. We make sure the rest of your body is comfortable. Neck pillows, blankets, find a head and chair angle that is comfortable, lots of topical anesthetic, and maximum cheek wiggling during injections. If anxiety keeps you from scheduling, consider anti-anxiety medications or sedation to tolerate the procedure. 

We appreciate the confidence your referring dentist and previous patients have in Endodontics of Orange County. There are other endodontic offices in the area, but if you want to be sure you are being treated by a team that is totally committed to offering the best care with compassion, contact us for diagnosis and treatment. We are about quality, appropriate treatment, and ethics. We are not going to recommend a procedure unless we think it will leave you symptom-free. We use the best equipment and materials available. We use techniques that offer the best success rate based on scientific evidence. We take the time to do it right the first time. That being said, if you tooth doesn’t settle down, we will retreat your tooth at no charge as long as you return within a year.

Because you are with the best staff and an experienced, leading Endodontist, you may be surprised to find that you did get a great deal on this endodontic treatment. We are far from the most expensive. We enjoy treating patients referred by the best general dentists in Orange County. We invite you to contact us for a consultation.


Dr. Cancellier's Dental and Family Roots

Dr. Cancellier is an Associate Professor at the University of Southern California School of Dentistry Advanced Endodontic Program.

Dr. Cancellier is a Diplomate of the American Board of Endodontics. This certifies that he has demonstrated attainment of that level of diagnostic skill, clinical proficiency, and professional judgment to help ensure the highest quality of care for his patients.

Peter Cancellier is a fifth generation Californian. He was born at St. Joseph''s Hospital in Orange, California. His mother''s great-grandfather came over the Oregon Trail from Scotland and settled in Oregon City, Butte County, California in 1852.  His mother''s great-grandmother came around the horn from Germany, landed in San Francisco, and settled in Oroville.  The Cancellier name was changed from Cancellieri when his father''s father arrived in New York from Italy in 1905.  

Dr. Cancellier graduated from the University of the Pacific with degrees in Biology and Communications Arts.  He worked in the flower business in Cardiff, California with his father before entering dental school.  Dr. Cancellier obtained his Doctor of Dental Surgery degree from the University of the Pacific School of Dentistry in 1982.  He practiced general dentistry in Los Angeles with Thurston Ross and Guy Ho, a member of the USC Dental School Hall of Fame.

In 1988, Dr. Cancellier completed a two year residency in endodontics at the Veterans Administration Medical Center in Long Beach, California. Since then he has practiced endodontics and taught endodontics.

Dr. Cancellier is a member of the American Association of Endodontists, American Dental Association, California Dental Association, an Honorary Member of the Warm Gutta Percha Study Club of Italy, an International Editor of the Giornale Italiano di Endodonzia, and Past President of the California State Association of Endodontists.

Dr. Cancellier is married with two wonderful daughters. After getting married last summer, his oldest daughter recently thrilled Mom and Dad with a new grandson. His youngest daughter just graduated from USF Magna Cum Laude. Way to Go!

We Use the Latest Technology

The surgical operating microscope offers increased magnification and illumination for all procedures.  Whether we are evaluating the outside surface of a tooth for a crack, locating miniscule root canals, removing a broken file from a root canal, or filling the root canal systems, the microscope benefits treatment.

Digital Radiography creates images that allow us to see the teeth enlarged. It uses much less radiation than conventional films. Varying the shades increases the opportunity for accurate results. It also makes the tooth bigger on the monitor. That reveals fine details easily missed without magnification of the image.




Cone Beam CT Provides Useful Images with Low Radiation

At Endodontics of Orange County we have a Cone Beam Computered Tomography unit. The three dimensional images often reveal whether teeth can be saved or not without resorting to drilling.

Cone Beam Micro-CT is available for more complete analysis of root canal systems and adjacent anatomy. For challenging cases, Dr. Cancellier uses this 3D imaging information to find canals, determine canal curvatures, and for choosing the appropriate treatment that serves the patient's health predictably.

Patient Testimonials

Just completed my second root canal within two years with Dr. Cancellier.  Both were emergency visits with acute onset of tooth pain and discomfort.  Quick access to appointments and visits with professional friendly environment.  Great team!  Excellent work! Excellent Endodontist with dedicated, professional staff!


Joanna K. Trabuco Canyon 04/22/2014

I have personally had over 8 root canals throughout my life and without a doubt Dr. Cancellier stands out as an excellent outcome.  His staff works for him and are highly professional and very reassuring.  Dr. Cancellier is professional, friendly, affable and thorough.  I had NO discomfort...remarkable.  I was prepared for the usual miserable few days afterwards and nothing!  Great doctor, great staff, very nice office!

Nancy L. Irvine 11/10/2013

I take this Yelp thig very seriously and that is how I actually found Dr. Cancellier.  I broke my front tooth when I was 11 and had a root canal and crown put on.  The color never really matched my other front tooth and it's bothered me my whole life.  I finally decided to get it fixed and was told I needed a re-treat on my root canal.  One endodontist said I did, the other said I didn't.  In order to really know for sure I was told I needed to use the Cone Beam technology.  I actually live in San Diego but could not find a doctor that had this technology that would take my insruance.  Thanks to Yelp I found Dr. Cancellier.  He and his staff are amaxzing!! So friendly and comforting.  It was very scary for me to trust someone to remove the post that has been there my whole life without breaking the little tooth structure that was there.  I was so scared and did not want to have to get an implant.  Dr. Cancellier was confident and comforting-you can tell he is an expert.  He immediately said I needed a re-treat and explained why.  He also gave me assurance that removing the post was not a problem.  It only took about an hour and I felt nothing (except I could hear lots of weird noises :). Great work, very professional, and I HIGHLY recommend going here.  He also called to follow up and make sure my new crown came out the way I wanted.  Just realy great people who care-you can't ask for anything more.  Thank you!!

Kelli M. Solano Beach 10/15/2013

Having been a professional avoider of the dentist all of my life, I knew at some point this strategy would back fire on me and it has.  I had an emergency root canal 2 years ago and now I needed a re-treatment on the same tooth.  I choose Dr. Cancellier primarily becasue he accepted my insurance but my sencondary reason was the good reviews on Yelp.  There are a lot of endodontists to choose from especially in the OC, but the key is finding a good one.  Dr. Cancellier and his staff were very nice and professional.  The re-treatment of my root canal went very smoothly, no pain during the procedure at all, and very good aftercare instructions.  Dr. Cancellier's 3-D scan of my mouth was something I had never seen before, and it's comforting to know that your dentist or endodontist is using the latest technology to treat you correctly.  Here's hoping I never have to go back, but if I do at least I know who I'll be going to!


Michael M. - Lake Forest 10/03/2013

My experience with Dr. Cancellier, and his staff members has been very positive.  I was referred by another dentist so I decided to get online and check Dr. Cancellier's website.  When I saw the reviews that were posted, I did not hesitate about making an appointment.  When I went to my first appointment, I confirmed what other patients posted in their reviews.  Moreover, I am always afraid of a dentist working in my mouth, but Dr. Cancellier does an incredible job because I did not even feel when he was numbing my tooth.  I highly recommend Dr. Cancellier to anyone who has a root canal problem.  Everyone in that dentist office made me feel like  I knew them a long time ago.  Thank you for your professionalism!!!

Zoila D. - Santa Ana 09/30/2013

For the procedure to clean and refill a previous root canal.  I experienced very little discomfort.  After each session, there were two, I used only several ibuprofens to alleviate inflammation and pain, which was very minor.  The injection of anesthesia was surprisingly unpainful; a little sting but not lingering and not severe.  The doctor and staff are very friendly and professional  Dr. Cancellier took time to show and explain the x-rays and what needed to be done and why.  I recommend this professional team.

Steve R. - Tustin 09/21/2013