Specialist-level care close to home
Root Canal Treatment in Diamond Bar, CA
Root canal treatment may help preserve a tooth when the tissue inside it is inflamed or infected. Rachel Lim, a board-certified endodontist, evaluates the source of discomfort and explains the appropriate options before care begins.
What you can expect
- Evaluation by a board-certified endodontist
- Comfort-focused root canal treatment
- Retreatment assessment
- Guidance for protecting the tooth afterward
Signs you may need a root canal
- Lingering sensitivity to hot or cold
- Spontaneous or throbbing toothache
- Pain when biting or chewing
- Swelling, or a pimple-like bump on the gums
- A tooth that has darkened after an injury
Some teeth need treatment even without pain, which is why a careful exam and X-rays matter.
What happens during treatment
- The tooth is numbed so you are comfortable.
- A small opening allows the inflamed or infected tissue inside the tooth to be removed.
- The canals are cleaned, disinfected, and shaped.
- The canals are filled and sealed, and the tooth is closed with a temporary or permanent filling.
Most treatments are completed in one or two visits. Many patients find it feels similar to having a filling.
Why see an endodontist?
An endodontist is a dentist with advanced training focused on the inside of the tooth. Rachel Lim, DMD, our board-certified endodontist, treats complex anatomy, retreatment of previous root canals, and hard-to-diagnose pain.
After your root canal
Tenderness for a few days is normal. Back teeth usually need a crown afterward to protect them from breaking, and we'll explain the timing. A treated tooth can last for many years with good care.
A clear, personal first step
Your visit begins with listening and a clinical evaluation. Recommendations depend on your examination and health history. We explain alternatives, anticipated costs, insurance considerations, and timing before you decide.
Frequently asked questions
Does insurance cover root canal treatment?
We accept Medi-Cal Dental (Denti-Cal) and welcome PPO dental plans. Coverage depends on your specific plan and the service, so our team verifies your benefits before treatment.
How do I know if this is the right treatment for me?
Recommendations begin with a clinical evaluation and a conversation about your goals, health history, and options. We explain alternatives, costs, and timing before you decide.
How long does treatment take?
Timelines depend on your individual evaluation and treatment plan. We'll give you a written estimate of the expected timeline before treatment begins.
Is a root canal painful?
The procedure is done with local anesthesia, and most patients say it feels similar to a filling. It is usually done to relieve pain, not cause it.
Is it better to pull the tooth instead?
Keeping your natural tooth is usually preferable when it can be saved. Replacing an extracted tooth with an implant or bridge takes more time and cost. We'll explain both options honestly.
What if I already had a root canal and the tooth hurts again?
Retreatment by an endodontist can often save a previously treated tooth. An exam and imaging show the cause.
