How do you identify a cementoenamel junction?

How do you identify a cementoenamel junction?

The cementoenamel junction, frequently abbreviated as the CEJ, is a slightly visible anatomical border identified on a tooth. It is the location where the enamel, which covers the anatomical crown of a tooth, and the cementum, which covers the anatomical root of a tooth, meet.

What is the cementoenamel junction?

The cementoenamel junction is the part of the tooth where two vital substances that protect the tooth meet on the tooth’s surface. Sometimes called the neck of the tooth, the cementoenamel junction can be visible to the naked eye due to the difference in color between enamel and cementum.

Where is the Cementodentinal Junction?

The cementodentinal junction is the part of the tooth where two protective layers called the cementum and dentin meet. Each of these substances plays an important part in protecting different areas of the tooth and keeping it healthy over time.

What does the CEJ feel like?

INSTRUMENTING THE CEJ Burnished calculus along the CEJ is often so smooth that it is almost impossible to detect with the tip of an explorer or probe. If you rotate the tip of an explorer and feel up and down with the point, you can sometimes detect a grainy texture.

What are the types of cementoenamel junction?

In human teeth, the cementoenamel junction (CEJ) can have different morphologies, known as Choquet cases or types: in type 1, the cementum overlaps the enamel; in type 2, the enamel overlaps the cementum; in type 3, the relationship between the cementum and enamel is edge-to-edge; and in type 4, there is a gap between …

Where is the cementoenamel junction located quizlet?

The CEJ ( cementoenamel junction) is the external line at the neck or cervix of the tooth where the enamel of the crown and the cementum of the root usually meet.

What is the Cementodentinal Junction?

Cementodentinal junction (CDJ) is the area at the interface between cementum and dentin.[1,2] The attachment of cementum to dentin is said to be due to the presence of adhesive proteoglycans primarily and secondarily due to fiber intermingling fortified by mineralization.[3]

What are the types of Cementoenamel Junction?

How do I get rid of subgingival calculus?

Ultrasonic instruments. Ultrasonic instruments are the principle treatment modality for removing plaque and calculus. These power-driven instruments oscillate at very high speeds, causing micro vibrations that aid in calculus and subgingival plaque removal.

How does dentin transmit pain?

It is a soft tissue containing microscopic tubules. The tubules act as transmitters of sensation to the pulp nerves. Whenever there is an increase in pressure or temperature around the tooth, the tubules in the dentin transmit the sensations to the nerves. A person then feels the sensation from the nerves.

What is the hardest substance in the body?

Tooth enamel (the surface of your teeth that you can see) is the hardest substance in the human body – even harder than bone!

What is the cementoenamel junction (CEJ)?

The cementoenamel junction, frequently abbreviated as the CEJ, is a slightly visible anatomical border identified on a tooth. It is the location where the enamel, which covers the anatomical crown of a tooth, and the cementum, which covers the anatomical root of a tooth, meet. Informally it is known as the neck of the tooth.

What is the relationship between enamel and cementum at the CEJ?

Cementoenamel junction. There exists a normal variation in the relationship of the cementum and the enamel at the cementoenamel junction. In about 60–65% of teeth, the cementum overlaps the enamel at the CEJ, while in about 30% of teeth, the cementum and enamel abut each other with no overlap.

What is cementoid tissue?

CEMENTOID TISSUECEMENTOID TISSUE The uncalcified matrix is called cementoid. Mineralization of cementoid is a highly ordered event & not the random precipitation of ions into an organic matrix. Fibers are embedded in the cementum & serve to attach the tooth to surrounding bone. Their embedded portions are known as Sharpey’s fibers. 13