What is the difference between a sulcus and a groove in tooth?

Sulcus: it is a long depression or valley in the surface of a tooth between ridges and cusps, the inclines of which meet at an angle. A sulcus has a developmental groove at the junction of its inclines. 7. Developmental groove: it is a shallow groove or line between the primary parts of the crown or root.

What is a fossa in dental anatomy?

Fossa – A shallow rounded or angular depression. Cingulum – A convex area on the lingual surface of the anterior teeth, near the gingiva.

Which of the following represents the name of the bone of the tooth socket that firmly fixes each tooth root?

The bone of the tooth socket is called the alveolus (plural alveoli) (Fig. 1.7).

What is the role of sulcus?

A sulcus (plural: sulci) is another name for a groove in the cerebral cortex. Each gyrus is surrounded by sulci and together, the gyri and sulci help to increase the surface area of the cerebral cortex and form brain divisions.

What is sulcus in palynology?

(botany, palynology) A groove sometimes occurring on grains of pollen.

Where is the lingual fossa?

Lingual surface The shallow lingual fossa is located between the marginal ridges and below the cingulum.

What is dental formula?

A dental formula is a system for summarizing the number of each type of tooth (incisor, canine, premolar, molar) in each quadrant of the mouth. Dental formulae show variation between species and may be different for the maxillary and mandibular dentition.

What is the function of premolars?

Premolars Premolars, or bicuspids, are used for chewing and grinding food. Adults have four premolars on each side of their mouths — two on the upper and two on the lower jaw.

What are the last four teeth a person will get?

The molars include four wisdom teeth, which are the last set of teeth to come in. They usually come in between the ages of 17 and 25. Wisdom teeth are also called third molars.

How deep is the midfacial sulcus in dentistry?

Notice that the depth of this midfacial sulcus is 1 mm deep, and the tissue is so thin that the probe can be seen D E through it. f212 Part 2 | Application of Tooth Anatomy in Dental Practice A B FIGURE 7-22. Probe placement technique on models. A.

How does facial contour affect the gingival sulcus?

A. Normal facial and lingual heights of contour help divert food away from the gingival sulcus. B. When heights of contour are not adequate, food can more readily A B damage the gingival sulcus.

How do you know if you have a gingival sulcus?

This condition is confirmed when the facial aspects of maxillary teeth and on the facial the periodontal probe depth of the gingival sulcus and lingual aspects of mandibular teeth.

What is the normal depth of gingival sulci?

On Probing depths in healthy gingival sulci normally range the other hand, if there is gingival recession where the from 1 to 3 mm. A depth of greater than 3 mm is a pos- gingival margin is apical to the CEJ, there may be shal- sible cause for concern.