Search results

One of the most common causes of failure in endodontics is missing canals.
The middle canal in lower molars is not an exception and has been studied by numerous authors in the literature.
Its prevalence ranges from 0,28% to 53,8% and it’s specially presents in the mesial root.
Using different X-ray angulations or with the help of CBCT we can confirm its existence.
Understanding the anatomy of the teeth is a key factor for the success of our treatment.
In this case we are treating a previously treated lower molar with some hidden anatomy.

In this article, we are going to explain the Braiding Technique, a predictable way to remove materials from inside root canals.  For this technique, we will use Hedstroem files, and is especially indicated to remove plastic carriers during retreatments. We will see the technical procedure and some clinical cases with video, picture and X-ray. As […]

Perforation (often of the floor) is one of the problem to solve that can happen when we start to do a retreatment. There is a lot of confusion and question when we spoke about the management and the phases to solve this type of problem. In this article I am describing all the phases step […]

The presence or absence of periradicular disease is determined according to clinical and radiographic findings. This article will discuss the non surgical endodontic retreatment of a mandibular first molar with mid-mesial canal.   Endodontic retreatment is a procedure performed on a tooth that have a previous attempt of definitive treatment resulting in a condition that […]

Root perforation is a challenging situation when the root canal has a pathological communication with periradicular area. Perforations can occur as an iatrogenic accident during a root canal instrumentation and is the second cause of failed endodontic treatment. In some cases complications may lead even to an extraction. Thus, successful treatment of a root perforation […]

There have been many recent technical advances in modern endodontics that have the potential to affect treatment outcomes. The purpose of this article is to determine the success of nonsurgical root canal retreatment in molars using contemporary endodontic techniques.

From a medico-legal aspect, extrusion of root canal filling might be considered malpractice if there is excessive extrusion of material combined with incomplete obturation of the canal leading to failure of the root canal treatment.(1) Acute Apical Abscess AAA is the most common form of dental infections and is caused by the infected root canal […]

Non-surgical root canal re-treatment is one of the most dental procedures that practitioners face in routine daily work. Though, it remains one of the most challenging procedures, as we are dealing with root canal complexities, different root filling materials, and most importantly, infection.

The use of CBCT at the diagnostic and treatment planning stage allows to detect presence of refractory endodontic pathology root by root in multicoated teeth. Teeth affected by pathology in one root only due to the presence of missed anatomy cannot be re-treated surgically and a selective orthograde re-rct approach can be opted for. The […]

In retreatments, one of real endodontic challenges comes when disassembly is complete and what remains is a root canal system that has been perforated.  What is the critical thinking required to solve such impediment to success? In this article, I am describing the management of a root perforation using absorbable collagen membrane as an internal […]

As Endodontists our daily work is an adrenaline fuel because we face new challenges on a daily basis and each case requires a strategy to fix it. Strategy before any retreatment consists of reading very carefully the preoperative X-Ray, in order to explain to the patient what is the problem, prognosis ,number of visits, possibility […]

The ledge, which is a deviation from the original canal curvature without communication with the periodontal ligament, is created when the working length can no longer be negotiated, and the original pathway of the canal has been lost. Ledge formation might lead to incomplete instrumentation and shaping, inadequate disinfection, and inadequate three-dimensional obturation of the root canal […]