What are the common anatomic complexities in the root canal system?

What are the common anatomic complexities in the root canal system?

Complexity of root canals depends on reasons such as ethnicity, gender, age, the existence of lateral/accessory canals, isthmuses, the location of the teeth at the jaws and anomalies of the teeth (dens invaginatus, dens evaginatus, fusion, gemination, dens in dente).

How do you find a root canal orifice?

The orifices of the root canals are always located at the junction of the walls and the floor (Figure 6).

What is traditional access cavity preparation?

Access preparations for maxillary central incisors are usually triangular, while those for premolars are generally ovoid. Traditional endodontic access cavities (TECs), like these, focus on removing tooth structure to allow instruments a straight-line entry through the canal orifices and to the mid-root.

How many root canals does each tooth have?

Your front incisor and canine teeth (biting teeth) usually have a single root containing 1 root canal. The premolars and back molar teeth (chewing teeth) have 2 or 3 roots, each containing either 1 or 2 root canals.

How many types of root canals are there?

Type I: a single main canal is present starting from the pulp chamber to the root apex. Type II: two separate canals leave the pulp chamber but join to form one canal to the apex. Type III: one canal leaves the pulp chamber and divides into two smaller canals which later merge again to exit through one canal.

How many root canals are in a maxillary second molar?

Although variations in the maxillary second molar may occur, it generally has three roots and three canals, while a second mesiobuccal canal (MB2) is found in 56.9–79.6% of cases. However, rare variations other than one or two roots can also be found in the maxillary second molar.

How do you open access in maxillary first molar?

When making a maxillary molar access opening, the author suggests using a bur with a small cutting diameter and a short, tapering tip, such as a 330 bur, instead of using a fissure bur, which has a wider, flatter cutting tip, and a longer, nontapered cutting length.

What is truss access cavity?

One approach of CEC is the orifice-directed design (also called the ”truss” access cavity), in which separate cavities are prepared to approach the mesial and distal canal systems in a mandibular molar, whereas for maxillary molars the mesio- and distobuccal canals are approached through one cavity and the palatal …

What is Ninja access Endodontics?

Point endodontic access cavities, which are known as ninja cavities [15], are opened by removing minimum substance to reach root canals [16]. Clark and Khademi [17] have suggested a preparation technique called a conservative EAC in order to remove minimal tooth tissue.

What was the problem with Vertucci’s classification of root canal morphology?

The problem with Vertucci’s Classification is that he did not consider the position of Auxiliary canals extending out of the Pulp chamber which is an important factor to consider if you want to do complete and proper Root Canal Therapy.

Which is the type of root canal type VII?

Type VII: Root canal starts as a single Pulp canal till the Middle third of the Root and then divides into two separate canals and then rejoins after some distance and then near the apex divides into two canals again just near the Apex.

How many canals are there in the mesial root?

Three canals were present in 61.3%, 4 canals in 35.7%, and 5 canals in approximately 1%. Root canal configuration of the mesial root revealed 2 canals in 94.4% and 3 canals in 2.3%. The most common canal system configuration was Vertucci type IV (52.3%), followed by type II (35%).

Where do the root canals start and end?

Type VI: Root Canals Start as two canals from the pulp chamber and join at the middle of the Root to form one and extend till the Apex and again divide into two canals just short of the Apical foramen.