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Root Canal Therapy

Root canal therapy is needed when the nerve of a tooth is affected by decay or infection.  In order to save the tooth, the pulp (the living tissue inside the tooth), nerves, bacteria, and any decay are removed and the resulting space is filled with special, medicated, dental materials, which restore the tooth to its full function.

Having a root canal done on a tooth is the treatment of choice to save a tooth that otherwise would die and have to be removed.  Many patients believe that removing a tooth that has problems is the solution, but what is not realized is that extracting (pulling) a tooth will ultimately be more costly and cause significant problems for adjacent teeth.

Root canal treatment is highly successful and usually lasts a lifetime, although on occasion, a tooth will have to be retreated due to new infections.

Signs and symptoms for possible root canal therapy:

  • An abscess (or pimple) on the gums.
  • Sensitivity to hot and cold.
  • Severe toothache pain.
  • Sometimes no symptoms are present.
  • Swelling and/or tenderness.

Reasons for root canal therapy:

  • Decay has reached the tooth pulp (the living tissue inside the tooth).
  • Infection or abscess have developed inside the tooth or at the root tip.
  • Injury or trauma to the tooth.

What does root canal therapy involve?

A root canal procedure requires one or more appointments and can be performed by a dentist or endodontist (a root canal specialist).

While the tooth is numb, a rubber dam (a sheet of rubber) will be placed around the tooth to keep it dry and free of saliva.  An access opening is made on top of the tooth and a series of root canal files are placed into the opening, one at a time, removing the pulp, nerve tissue, and bacteria.  If tooth decay is present, it will also be removed with special dental instruments.

Once the tooth is thoroughly cleaned, it will be sealed with either a permanent filling or, if additional appointments are needed, a temporary filling will be placed.

At the next appointment, usually a week later, the roots and the inside cavity of the tooth will be filled and sealed with special dental materials.  A filling will be placed to cover the opening on top of the tooth.  In addition, all teeth that have root canal treatment should have a crown (cap) placed.  This will protect the tooth and prevent it from breaking, and restore it to its full function.

After treatment, your tooth may still be sensitive, but this will subside as the inflammation diminishes and the tooth has healed.

You will be given care instructions after each appointment.  Good oral hygiene practices and regular dental visits will aid in the life of your root canal treatment.


Read what people are saying about us.

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5 star rating 8/30/2017
Dr. Thai has been my dentist for over 3 years now and I'm still fully satisfied with this office! The main thing I like about this office is that they really care about the patient.
So if you're looking for an office that pays attention to personalized care and a dentist that listens to your needs and concerns, this is the office for you!
They accept most insurances so if you're not sure if they are in network, make sure to give them a call and they will help you through the process!

CK in Sunnyvale on 08/30/2017

5.0 star rating 3/13/2016
I strongly disagree with Peter Z. I doubt that his review is for Dr Thai. I've been with Dr. Thai for 2 years and she never did what Peter Z has described. Dr. Thai is not a pushy person, I don't believe she would repeatedly up-sell unnecessary procedures to her patients. She is professional, knowledgable, skillful, experienced, down to earth, sincere, friendly. There are a lot of great values I found on her as an outstanding dentist.

I would highly recommend her to anybody.

Richard via Yelp

5.0 star rating 11/20/2015
1 check-in
This review is long overdue! I have been a patient of Dr. Thai for over 7 years now. I concur with the other reviews that she is sincere, friendly, and will go above and beyond to help with getting your dental needs taken care of. She would take the time to answer all of my questions and was very thorough with her cleanings, screenings, and overall dental care. The best thing about her is that she is gentle and patient. If you happen to see her during the holiday season, you may get a chance to try her homemade muffins or cookies. Her assistant told me that she loves to bake during the holidays, and she would share them with patients and colleagues. Her office even have cool dental items like bacon, pickle, and cupcake toothpaste/floss for you to try. So if you want a personalized and friendly office where the dentist knows all of her patients by name, then I highly recommend Dr. Thai. You won't be disappointed.

Chip via Yelp

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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.