Why Do Endodontic Treatments Fail & How to Avoid Failures
"Dentistry 2020" Lecture Series for Generalists
Why Do Endodontic Treatments Fail & How to Avoid Failures
"Dentistry 2020" Lecture Series for Generalists
Why Do Endodontic Treatments Fail & How to Avoid Failures
"Dentistry 2020" Lecture Series for Generalists
Why Do Endodontic Treatments Fail & How to Avoid Failures
"Dentistry 2020" Lecture Series for Generalists
Why Do Endodontic Treatments Fail & How to Avoid Failures
"Dentistry 2020" Lecture Series for Generalists
Why Do Endodontic Treatments Fail & How to Avoid Failures
"Dentistry 2020" Lecture Series for Generalists

Course Synopsis:

In this 3 CE AGD-accredited course, you will learn to:

1)    Identify the etiological factors leading to failed root canal therapies

2)    Understand the causes of failure

3)    Formulate a problem list

4)    Manage- recommend the appropriate treatment option

Course Description:

According to literature, the survival rate of endodontically treated teeth is close to 98%. How do we update our understanding of endodontics so that we can care for our patients and close in on the 98% published survival rate? The most common reason for a failed root canal treatment is inadequate treatment. However, there are some cases in which a root canal treatment is carried out in accordance with the highest standards, and yet still results in failure. In most such cases, the endodontic failure results from persistent intra-radicular infection. In other cases, extra-radicular infections and intrinsic or extrinsic non-microbial factors might be implicated in the failure.

The purpose of this lecture is to discuss the etiological factors of failed root canal treatments using a series of clinical cases. It will aid clinicians in choosing between surgical and non-surgical management of a failed root canal in an evidence-based manner. Indications for the non-surgical vs. surgical retreatment of failed endodontic cases are discussed in order to maximize the success of an endodontic retreatment.

About Dr. Nima Dayani:

Dr. Nima Dayani has practiced endodontics for the past 17 years. He has served the New York City area from his practice, EOI – NYC, located in Midtown Manhattan. See his full biography.

Our Doctors

Nima Dayani, DDS, MS
Endodontist - Root Canal Specialist
Clinical Expertise:
  • Diagnostic Services
  • Root Canals: Endodontic Treatment or Root Canal Therapy
  • Endodontic Retreatment including removal of posts or other obstructions from the root canal
  • Endodontic Surgery including Apicoectomy and Complex Apicoectomies, bone grafts, dental implants and complex dental implant rehabilitations
  • Emergency Dentistry and all emergency dental care to alleviate tooth pain and swelling
  • Internal Tooth Bleaching
  • Traumatic Dental Injuries, Microscope Dentistry and minimally invasive procedures.
Read more
Valentina Lyssova, DDS
Implantology and Ancillary Surgeries
Clinical Expertise:
  • Maxillofacial Prosthetics After Head & Neck Cancers
  • Surgical Implantology and Surgical Implant placements
  • Guided Implant Surgery
  • Restoration of Soft and Hard Tissue Deficiencies
  • Sinus Lifts
  • Ridge Augmentation
  • Advanced Bone Grafting
  • Full Mouth Oral Surgical Rehabilitation
  • Dental Treatment for Scleroderma Patients
  • Sleep Apnea Therapy
  • Surgical Case Planning for Facilitation of Prosthetic Rehabilitation
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Jamie Yoonshin Lee, DDS
Endodontist - Root Canal Specialist
Clinical Expertise:
  • Diagnostic services
  • Root Canals: Endodontic Treatment or Root Canal Therapy
  • Endodontic Retreatment including removal of posts or other obstructions from the root canal
  • Pulp Therapy: Apexogenesis, Apexification, Vital Pulp Therapy, Regenerative Procedures
  • Non-surgical and surgical perforation repair
  • Surgical treatments: Apicoectomy, auto-transplantation, intentional replantation, root amputation
  • Internal tooth bleaching
  • Traumatic Dental Injuries, Microscope Dentistry and minimally invasive procedures
  • Emergency dentistry to alleviate pain and swelling
Read more
Allen Glied, DDS
Oral & Maxillofacial Surgeon
Clinical Expertise:
  • Wisdom Teeth Removal
  • IV Sedation, Sleep dentistry, Sleep Surgery
  • Bone Grafts and Reconstruction
  • Facial Trauma
  • Corrective Jaw Surgery
  • Oral Pathology
  • Apicoectomy
  • Cuspid Exposure
  • TMJ Disorders
  • Orthognathic Surgery
  • Advanced Implant Rehabilitation
  • Crown Lengthening
Read more
Benjamin Solomowitz, DMD
Dental Anesthesiologist
Clinical Expertise:
  • Dental Anesthesiologist
  • Sedation Dentistry. Sleep Dentistry
  • IV Sedation Root Canal
Read more

Peer Reviews

  • Dr. Jonathan Marcus, JB Dental, PC; 3410 Broadway #1, New York, NY 10031
    • I’ve been referring patients to EOI for the past several years for endodontics. Notwithstanding the doctor being a real gentleman, he truly is the best at what he does. My patients consistently tell me how he has shattered their pre-conceptions of what a Root Canal is all about. His calm gentle manner, married to his cutting edge technology clearly puts him in a league of his own.
  • Dr. Kristin Manitzas Miles, Pediatric Dentist and CEO, Majestic Smiles Pediatric Dentistry PLLC
    • I’ve been referring my endodontic patients to EOI… They are professional, empathetic and perfectionistic—the total package… When I refer to them, I know my patient will be seen in a timely manner, will be treated with respect, and will get a good result. I can highly recommend them without reservation.
  • Dr. David Poiman DMD, FAGD, 57 W 57th Street, New York, NY
    • I am a general dentist, and we have been working with EOI for several years. They are very conscientious and professional dentists, providing patients with superb results. They have treated my family members as well.
  • Dr. Stewart Rosenblatt, DDS 191 Third Avenue, New York, NY
    • A gentle mannered and highly skilled NYC root canal specialist. I have comfortably referred many of my patients into EOI’s care.

Contact Us

36 w 44th Street, Suite 712
Between 5th & 6th Ave
New York, NY 10036
(212) 221-3155
Opening Hours

Monday – Friday
8:30 AM – 6:00 PM
Saturday – Sunday:
Emergency Appointments

Memberships & Affiliations

CORONAVIRUS & COVID-19 NOTICE:

We Are Open for All Patient Dental Services

Your Safety: We want you to know that by entering our offices, you will be in one of the safest places in New York City. In fact, our specialists are helping train other dentists about how to manage infection control in their offices.

As an emergency care provider, we have been open during the state of “PAUSE” for emergency services, and we are now open for all patient visits. In light of the pandemic, we implemented additional precautions for patients and staff, many of which turned out to exceed the CDC and DOH recommendations when such guidance was issued. Some of the changes you might notice:

  • Contactless check-in. We have converted our administrative procedures to online forms that can be completed from home, eliminating the need for a physical waiting room or contact with anyone outside of the clinical staff.
  • Tele-Dentistry Triage process. Our doctors contact you after you have made an appointment and before you arrive at the office to discuss your dental concerns, in order to eliminate any unnecessary in-person visits.
  • Tele-Dentistry Consult, allows patients to have an in-depth conversation with a clinician prior to their arrival to: (1) review patient’s health and dental history, (2) to receive a tentative diagnosis as to why the patient is experiencing his/her symptoms and what the appropriate treatment is, and (3) to review the pros and cons of each treatment option and its expected success rate over time.
  • All doctors and staff have been tested for SARS-CoV-2
  • All patients are interviewed regarding recent exposures to SARS-CoV-2 and tested
  • Robust PPE for the clinical staff
  • Strong Engineering protocols and strict Administrative Controls to eliminate risk of exposure and enhance infection control significantly

If you have any questions about the steps we are taking, please feel free to contact us.

We’re excited to continue providing gold-standard dental care.