
A root canal is an endodontic procedure that saves a severely infected or damaged tooth by removing the infected pulp tissue inside the tooth, disinfecting the root canals, and sealing them to prevent reinfection. At Harmony Dental Care in West Covina, modern root canal treatment is comfortable, efficient, and far less intimidating than its reputation suggests. Dr. Khaef uses advanced rotary instruments, digital imaging, and sedation options to make the experience as painless as a routine filling. Saving your natural tooth with a root canal is almost always preferable to extraction, preserving your jaw structure and avoiding the need for more complex replacement procedures. Patients from Charter Oak, Covina, and Irwindale trust our gentle, modern approach to root canal therapy.

Common indicators include severe or lingering toothache, sensitivity to hot or cold that persists after the stimulus is removed, darkening or discoloration of the tooth, swelling or tenderness in the nearby gums, a persistent pimple (fistula) on the gums, and pain when biting or touching the tooth. Sometimes a tooth needing root canal therapy shows no symptoms at all and is detected only through X-rays during a routine exam.
After numbing the area with local anesthesia (with optional sedation), Dr. Khaef creates a small access opening in the crown of the tooth. The infected or inflamed pulp tissue is carefully removed using specialized instruments. The canals are cleaned, shaped, and disinfected, then filled with a biocompatible material called gutta-percha and sealed. In most cases, a dental crown is placed over the treated tooth to restore full strength and function.
Modern, pain-free approach. With current anesthesia and techniques, root canals are as comfortable as getting a filling. Most patients are surprised by how easy the experience is.
Advanced instruments. Rotary endodontic files and digital imaging enable precise, efficient treatment.
Same-office crown placement. We place your post-root-canal crown in-house—including same-day CEREC crowns—so your tooth is fully restored without additional referrals.
Sedation available. Oral and IV sedation for anxious patients.
Convenient location. Our West Covina office is just minutes from Charter Oak, Covina, and Irwindale — offering same-office crown placement after root canal so you never need a separate appointment elsewhere.
Harmony Dental brings 20 years of clinical experience effectively treating severe tooth infections and saving natural teeth in the eastern San Gabriel Valley also known as the greater Los Angeles area area. Our commitment to rapid pain relief and expert endodontic care is backed by our 200+ 5-star reviews.
Your endodontic care will be expertly managed by Dr. Nguyen. As a highly trained DMD, they specialize in carefully removing deep dental infections to save your tooth. Our practice is also proud to be recognized with 5 star dentist of West Covina.
Yes, we do perform root canal re-treatments. However, because re-treatments generally have a lower success rate than initial root canals, we evaluate them on a strict case-by-case basis. While our ultimate goal is always to save your natural tooth, we will honestly discuss all your options to ensure the highest chance of long-term success.
This is a common myth! The pain you feel is from the infection inside the tooth, not the procedure. A root canal actually stops the pain. We offer profound local anesthesia and local anesthetic, powerful numbing gel, warm blankets and noise-canceling headphones to ensure your treatment at Harmony Dental is completely relaxed and pain-free.
We utilize 3D Digital X-rays, 3d scanners, digital impressions, and pain-free laser dentistry to map the complex, microscopic pathways inside your tooth's roots. This allows us to thoroughly clean the infection and seal the tooth with biocompatible materials that align with our mercury-free materials, BPA-free resins, biocompatible philosophy.
A re-treatment involves removing the old filling material, re-cleaning the intricate canals to address the new or lingering infection, and resealing the tooth. It is a more complex procedure, which is why we utilize advanced 3D imaging to carefully assess if the tooth can be predictably saved.
The cost of a root canal depends on which tooth is infected (molars have more roots and are more complex) and whether it is a first-time treatment or a re-treatment. Because saving your natural tooth is always the best investment, Harmony Dental proudly accepts CareCredit, Sunbit, Alpheon, Credit Card and in-house membership plan.
Yes, because a root canal is a major medical necessity to treat active infection, most dental insurance plans cover a significant percentage of the cost. Harmony Dental works directly with All PPO insurances, Medi-cal, Denti-cal, CalOptima, delta dental, deltacare hmo, MediCare advantage plans with Blue shield of California Medicare d-snp, Elite Health, Kaiser permanente California Medicare, ucla health MediCare advantage,well careAspire health plan, Central Health MediCare Plan, imperial health plan, Molina healthcare, scan health plan and sharp health plan to maximize your benefits.
We frequently welcome patients who have been referred or are seeking a second opinion. We will utilize our complimentary virtual consults, free second opinions, No insurance specials and free aligner consultations to review your x-rays, confirm the diagnosis, and get you scheduled for relief as quickly as possible.
If you are in throbbing pain, experiencing swelling, or cannot sleep, please do not wait. same-day appointments available, a 24/7 on-call doctor. Call us immediately at (626) 858-3305 during our hours of Monday through Friday, 9:00 AM to 6:00 PM so we can get you out of pain today.
If your old root canal is aching or showing signs of a new infection, call our office at (626) 858-3305 or ask about our $59 new patient exam, x-rays, and cleaning to book a comprehensive endodontic evaluation and discuss your re-treatment options.
Absolutely. Our calm, welcoming clinic is centrally located at 148 N Grand Ave and provides free and ample parking right in front of the building for a hassle-free arrival. We also feature fully wheelchair accessible and ground-floor access to ensure your visit is incredibly easy and low-stress.
Harmony Dental Care is led by Dr. Khaef and Dr. Nguyen, both committed to continuing education and staying at the forefront of dental technology and techniques. Our clinical team brings expertise in implant dentistry, cosmetic procedures, restorative care, periodontics, endodontics, pediatric dentistry, and sedation.
Beyond clinical skill, what sets our team apart is a genuine love for our patients. We remember your name, we ask about your family, and we celebrate your results with you. That personal connection is what hundreds of reviewers mention most — and it’s what makes Harmony Dental Care feel like home.





We believe financial concerns should never prevent anyone from receiving quality dental care. Harmony Dental Care accepts a wide range of insurance plans:
PPO and Indemnity plans. We work with most major dental insurance carriers and maximize your benefits on every visit.
Medi-Cal, Denti-Cal, & Smile California: Full dental for members. We handle all authorizations and claims.
CalOptima dental. Direct provider — no referral needed.
Flexible financing. Affordable monthly payment plans for elective and major procedures. Ask about our options during your visit.
$59 New Patient Special. Comprehensive exam, digital X-rays, and professional cleaning for new patients without insurance.
We know that dental insurances try to make things difficult. Because of this, we go the extra mile to help you understand your dental insurance and maximize your benefits. Give us a call and we can do a complete complimentary insurance eligibility for you before your visit.
Business Hours:
Monday: 9 AM–6 PM
Tuesday: 9 AM–6 PM
Wednesday: 9 AM–6 PM
Thursday: 9 AM–6 PM
Friday: 9 AM–6 PM
Saturday & Sunday: Closed
Top-rated dental care across Los Angeles & Orange County. Your smile is our priority.
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