Dental Anatomy Quiz

The corner of the mouth where the upper and lower lips meet.

The two grooves that distinguish the area around the lips: the Nasolabial groove which is located between the lip and the nose, and the Labiomental groove located between the lower lip and the chin.

The tissue surrounding the neck of the tooth.

The flattened, muscular organ located in the floor of the mouth. It's important for taste, speech, chewing, and swallowing.

The anterior portion of the roof of the mouth.

The posterior portion of the roof of the mouth, ending in a small fleshy structure called the uvula.

The upper dental arch, containing the maxillary teeth.

The lower dental arch, containing the mandibular teeth.

The crown of a human tooth is the longest part when compared to other teeth.

Each tooth has five surfaces: Labial, Lingual, Mesial, Distal, and Incisal/Occlusal.

The facial and lingual outlines of the crown are trapezoidal, meaning they resemble a trapezoid shape.

The cervical outline of the crown is convex, meaning it curves outwards towards the root.

The mesial and distal outlines of the root taper towards a blunt apex, like a cone.

The apex of the root is centrally located on the long axis. This makes it easier to remove the tooth by rotating.

The crown surface of a labial aspect is smooth and convex, having the most outward curve at the cervical third (cervical ridge).

The lingual surface of the crown has elevations like marginal ridges and a cingulum, and a depression called the lingual fossa.

The process in which teeth cut and grind food into smaller pieces, preparing it for digestion.

The two sets of teeth humans develop: primary (baby teeth) and permanent (adult teeth).

The first set of teeth, also called deciduous teeth. Appear around 6 months of age and begin to fall out around 6 years old.

The second set of teeth, also called adult teeth. They replace the primary teeth.

The period between the loss of primary teeth and the eruption of permanent teeth. Occurs between ages 6 to 12.

The hard, outermost layer of a tooth which protects the tooth and is responsible for its white color.

The layer beneath enamel that forms the bulk of the tooth, contains living cells, and provides support.

A hollow space within the tooth that contains nerves, blood vessels, and supporting tissues.

The universal numbering system assigns a unique number to each tooth in the mouth, allowing for a clear and consistent way to identify and refer to specific teeth.

The universal numbering system uses a two-digit code for each tooth. The first digit indicates the quadrant of the mouth, and the second digit indicates the specific tooth within that quadrant.

In the universal numbering system, the quadrants are numbered from 1 to 4, starting with the upper right quadrant and moving clockwise.

The universal numbering system assigns numbers to the teeth, starting from the midline of the dental arch and moving towards the back of the mouth.

The universal numbering system uses the '#' symbol before the tooth number, to indicate that it's being used for universal system.

The universal numbering system is used for permanent teeth, which permanently replace deciduous teeth.

The universal numbering system is also used for deciduous teeth, which are temporary teeth that are eventually replaced by permanent teeth.

The universal numbering system is a standard system used by dentists and other healthcare professionals worldwide.

The central depression on the lingual surface of an anterior tooth.

The rounded, bulging area on the cervical (neck) region of an anterior tooth.

The line where the enamel of the crown meets the cementum of the root on an anterior tooth.

The smooth, rounded surfaces on the sides of an anterior tooth. They are convex, meaning they curve outwards.

The point where the mesial and incisal edges of an anterior tooth meet.

The point where the distal and incisal edges of an anterior tooth meet.

The rounded bumps on the incisal edge of a newly erupted anterior tooth.

The outline of an anterior tooth viewed from the incisal edge, which shows a triangular shape with the base labial (towards the lips) and the apex lingual (towards the tongue).

The point where the root of a tooth ends, forming a blunt tip.

The root of a tooth is tapered towards the apex, creating a cone-like shape.

The mesial and distal surfaces of the root taper to a blunt apex, resulting in a cone-like shape.

The crown is the part of the tooth that is visible above the gum line.

The root of the tooth is the part that is embedded in the bone.

The crown is longer and thicker in the labiolingual direction (front to back) than the second incisor, making it appear more pronounced.