Endodontic Retreatment
With the appropriate care, your teeth that have had endodontic treatment will last as long as other natural teeth. Yet, a tooth that has received treatment may fail to heal or pain may continue to exist. Sometimes, the pain may occur months or years after treatment. If so, Dr. Marmo may need to perform endodontic retreatment.
Improper healing may be caused by:
- Curved or narrow canals that were not treated during the initial treatment.
- Complicated canals that went undetected during the initial treatment.
- The crown or restoration was not placed within the appropriate amount of time following the procedure.
- The crown or restoration that did not prevent saliva from contaminating the inside of the tooth.

Inflamed Tissue

Filling Removed

Canals Cleaned

Root Material Placed

Filling Restored

Healed Tooth
In some cases, new problems can influence a tooth that was successfully treated:
- New decay can expose a root canal filling material, causing infection.
- A cracked or loose filling or crown can expose the tooth to new infection.
Once retreatment has been selected as a solution to your problem, the doctor will reopen your tooth to gain access to the root canal filling material. This restorative material will be removed to enable access to the root canal. The doctor will now clean your canals and carefully examine the inside of the problematic tooth. Once cleaned, the doctor will fill and seal the canals and place a temporary filling in the tooth.
At this point, you will need to return to your dentist to have a new crown or restoration placed on the tooth to restore full functionality.
Newtown Endodontics
Our Latest Patient Testimonial
Totally seamless pain free experience.
- Margaret H
Our Latest Patient Testimonial
As far as root canals go - it was a great experience 🙂 Great staff!
- Justin H
Our Latest Patient Testimonial
Excellent care. Compassionate and expert treatment. Would highly recommend. Dr. Marmo and staff truly professional.
- Carol O
Our Latest Patient Testimonial
If you have to get root canal this is the place to go! Dr & staff very calming & sweet,
- Peggy O
Our Latest Patient Testimonial
Can’t thank you all enough for helping me feel better.
- Carol O
Our Latest Patient Testimonial
I would highly recommend Dr Marmo. He always provides the utmost concern and care for me before and during any of the procedures I have had done. He always takes his time to make sure I am comfortable and follows up as well. His staff is also wonderful!
- Patricia S
Our Latest Patient Testimonial
Dr Marmo was terrific. I got in to see him immediately and the procedure was painless. His staff was very nice and friendly.
- Marion S
Our Latest Patient Testimonial
Would recommend anyone here it’s easy and painless
- Trey G
Our Latest Patient Testimonial
Dr.Seto explained everything as he was going along and made me feel very comfortable. The procedure was painless and everyone in the office was very friendly. I highly recommend them!
- Karolyn K
Our Latest Patient Testimonial
Awesome experience for getting a root canal
- William B
Our Latest Patient Testimonial
Thank you
- Isabelle R
Our Latest Patient Testimonial
Excellent treatment by Dr. Marmo and staff. Highly recommend.
- Joy B
Our Latest Patient Testimonial
Courteus and friendly, very impressed
- Kevin M
Our Latest Patient Testimonial
It was a pleasure to have Dr. Seto work on my tooth. He took the time to explain each option, and went above and beyond to make sure my experience was as comfortable as possible. I appreciate the good work, care, and consideration taken. The environment was clean, and the staff took every step make sure sterilization was done. I highly recommend Newtown Endodontics.
- Greg S
Our Latest Patient Testimonial
Great and painless experience. Loved everyone there
- John L
Our Latest Patient Testimonial
Dr. Marmo's office if very different in a good way. Root canal re-treatment is not a very pleasant procedure but Dr. Marmo and his staff do an excellent job at making it as pleasant experience as it can be. I felt no pain which is the way you want it to be. I found it very unusual also that I was the only patient in the office., so full attention is on you. Thank you to Dr. Marmo, Frannie and Beverly for making it such a pleasant experience.
- Maureen H
Our Latest Patient Testimonial
THis is an office you want to go to despite peoples fears about Root canals. I have full confidence in Dr. Marmo, he has redone so many of my teeth that had prior root canals and none of the teeth he has worked on have failed. he is truly concerned about the patients he treats and is a calm and caring person...... There should be more like him out there...... I just cannot say enough positive things about him and people need to go and see for themselves what I have been seeing for years now.
- Marcia Z
Our Latest Patient Testimonial
Upon entering, you immediately can see how immaculate the office is. The furnishings and visuals are very inviting - all have a soothing effect on anyone who understandably enters with a little fear of procedures. The office has some of the latest state of the art equipment. The Dr. is not rushed; the patient is treated as an individual from the time given for exam, sedation if needed, and the procedure.. While their website lists towns in Bucks County they serve, I was more than willing to travel from far Southwest Philadelphia and would always return there. Following procedures, the Doctor and staff make frequent phone calls to make sure the procedure continues to go well. I have been to the office twice for procedures and would highly recommend their care to anyone.
- Myron J