What is the danger zone in endodontics?

In general, the danger zone is located 4 to 6 mm below the canal chamber orifice [10], and the minimum distal dentin thickness was located between 1 and 2 mm under the furcation. The mean thickness of dentine 2 mm below the furcation in MRs of mandibular molars ranges from 0.78 to 1.27 mm [5, 7,8,9,10,11,12,13,14].

How do you Unroof a pulp chamber?

The two ways to unroof the chamber are to either place a straight bur and move it laterally while keeping it parallel to the long axis of the tooth, or place a round bur into the access engaging laterally un- der the remaining overhang and then withdrawing the bur occlusally, illustrated in Figure 9.

What is danger zone in mandibular molar?

Danger zone refers to the distal area in the mesial root in mandibular molars. Usually a straight layer of dentin, it becomes a preferable site for strip perforation during instrumentation (Figure 1).

What is Taurodontism of teeth?

Taurodontism is a developmental disturbance of a tooth in which body is enlarged at the expense of the roots. An enlarged pulp chamber, apical displacement of the pulpal floor and lack of constriction at the cementoenamel junction are the characteristic features.

How thick is the dentin in the furcation?

They reported that the average dentin thickness 2–3 mm apical to the furcation area adjacent to the MB2 root canal was significantly lower on the mesial and distal sides compared to the MB1 root canal.

How do you open a pulp chamber?

Though varying following the different anatomy of the teeth, the opening of the pulp chamber must follow some fundamental rules: no undercuts between the floor of the chamber and the walls of the access cavity, complete removal of the roof of the chamber, unrestricted view of the opening of the canals and of possible …

How do you identify a pulp chamber?

The floor of the pulp chamber is always located at the center of the tooth and at the level of the CEJ (Figure 2). The walls of the pulp chamber are concentric to the external surfaces of the tooth at the level of the CEJ (Figure 6). The CEJ is the most consistent landmark in locating the position of the pulp chamber.

When does taurodontism occur?

Taurodontism is believed to arise from a field effect and all molars are generally involved, the first molar being least affected, and with increased severity in the second and third molars, respectively (Fig. 3).

How is taurodontism treated?

How is Taurodontism Treated? It can be treated with a root canal in Houston. Endodontic treatment, also known as root canal therapy, is used to treat many cases of taurodontism. In this procedure, a cavity is created in order to access the root, which is then destroyed and filled.