Quiz questions (#1, #2, #3, #4, #5) Concorde dental anatomy and morphology

How many teeth in the complete adult dentition have a labial surface?

Twelve

How many total molars are there in the complete adult human dentition?

Twelve

On the incisors, the number of lobes on the facial surface (which is the same number of Mamelons on the Incisal surface) is:

Three

Ridges that form the mesial and distal borders on the lingual surface of anterior teeth and the occlusal surface of posterior teeth:

Marginal ridges

All incisors have a mesioincisal (mesial) angle more square and the distoincisal (distal) angle more rounded. Which type is the EXCEPTION?

Mandibular central incisor

Though smaller than the maxillary incisors, mandibular incisors also have _____ (number of) lobes.

Four

True or false? The mesial contact of the mandibular lateral incisor is closer to the Incisal edge than the distal contact.

True

When viewed from the proximal, what is the location of the height of contour (widest area) on the facial surface of all teeth?

Cervical third (closer to CEJ)

This tooth has the shortest root relative to its crown (crown to root ratio):

Maxillary central incisor

Which of the following are the anatomic features of permanent maxillary central incisors? 1. Cingulum, 2. Mamelons, 3. Marginal ridges, 4. Occlusal surface

1, 2, and 3

Which of the following is a unique characteristic of the maxillary lateral incisor?

All of the above

Which incisors have more prominent lingual anatomy, maxillary incisors or mandibular incisors?

Maxillary incisors

Which of the following is true about incisor roots?

All of the above

What shape are incisor crowns when viewed from the labial/facial?

Rectangle

When viewed from the proximal (from mesial or distal) what shape is the incisor crown?

Triangular

A transverse ridge is made up of which two ridges?

Two triangular ridges

When holding a maxillary and mandibular canine, which characteristic(s) can be used to distinguish the mandibular canine?

All of the above

Which characteristic can be used to distinguish the maxillary canine from the mandibular canine?

The cusp of the maxillary canine is more pointed

When viewed from the labial/facial, what is the geometric shape of a canine crown?

Pentagon shaped

Like the incisors, when viewing a canine from the proximal view, what shape is the crown outline?

Triangular shaped

Which of the following characteristics is most often true for all incisors and for all canines?

The proximal view outlines are triangular shaped

Like the incisor teeth, the canines develop from how many lobes?

Four

Which teeth are known as the "cornerstones" of the arch?

Canines

On the canine teeth, where is the facial/labial height of contour (like all teeth)?

In the cervical third of the tooth

On a mandibular canine tooth, which ridge is most nearly horizontal?

Mesial cusp ridge

All anterior teeth and two-cussed premolars form from how many lobes?

Four

A Y-shaped occlusal groove patten is characteristic of a:

Mandibular second premolar

If a mandibular second premolar has three cusps, what are they called?

Buccal, mesiolingual, and distolingual

Which premolar has a pronounced concavity (fossa) on the cervical part of mesial surface of the crown?

Maxillary first premolar

The mandibular second premolar often exhibits a linear depression (groove) extended lingually from the central pit, separating the two lingual cusps. This linear depression (groove) is known as the

Lingual groove

When compared to other premolars, which of the following characteristics is unique to a mandibular first premolar?

There is likely to be a mesiolingual groove crossing onto the mesiolingual surface

Which of the following is NOT true about a maxillary first premolar?

It can have one or two lingual cusps

Which of the following teeth is most likely to have a large buccal cusp and a much smaller non-functional lingual cusp?

Mandibular first premolar

A "+" groove pattern on the occlusal surface indentifies the tooth as the:

Mandibular second permanent molar

From which view is only one tooth visible on an extracted mandibular first molar? (Think about which root is larger and hides the other root)

Mesial

The two grooves that are found on the buccal surface of the mandibular first molars are the mesiobuccal and?

Distobuccal

Of the following, which cusp is the smallest cusp on permanent maxillary molars (not including the cusp of caribelli)?

Distolingual

Found only on the permanent maxillary molars, what is th ename of the ridge formed by the distal cusp ridge of the mesiolingual cusp and the triangular ridge of the distobuccal cusp?

Oblique

The Cusp of Caribelli is located on which cusp of the maxillary first molar?

Mesiolingual

Where are furcations located on the roots of maxillary molars?

1 on the buccal, 1 on the mesial lingual, and 1 on the distal lingual

Where are the furcations located on the roots of permanent mandibular molars?

1 on the buccal surface and 1 on the lingual surface

An 8 year old has how many teeth in their mouth (primary and permanent)?

24

During what age span are primary teeth in the process of erupting (emerging) into the mouth, known as primary dentition?

6 months to 2 years

In the normal dentition, humans have how many non-Succedaneous teeth?

12

Primary molars differ from permanent molars in that primary molars have:

Greater divergence of roots

The permanent mandibular central incisors erupt at age:

6 to 7 years

Using the universal number or letter, which tooth erupts just distal to primary tooth J?

Tooth #14 maxillary left permanent first molar

Which primary tooth does not resemble any permanent tooth?

Mandibular first molar

What is the anatomic relationship of the muscles to the skin?

Muscles are deep to the skin

What is the anatomic relationship of the maxillary arch to the mandibular arch?

The maxillary arch is superior to the mandibular arch

What is another term for a transverse section?

Horizontal section

What is the term for the top surface of the tongue?

Dorsal surface

The lateral surface of the tongue is noted for its vertical ridges, the _________________, which contain taste buds.

Foliate lingual papillae

Where are circumvallate papillae located within the oral cavity?

Dorsal surface of the tongue

What is the vertical groove located at the midline superior to the upper lip that extends downward on the skin from the nasal septum?

Philtrum

What is the dense pad of tissue just posterior to the most distal tooth of the mandible?

Retromolar pad

From the following list of structures, select which structure is located within the nasal region of the head.

Nasion

From the following list of structures, select which structure is located within the oral region of the head.

Labial commissure

From the following list of structures, select which structure is located within the temporal region of the head.

Tragus

From the following list of structures, select the region that contains the medial and lateral canthus:

Orbital

The squamosal suture is BEST observed from which view of the skull?

Lateral View

After the seventh cranial nerve travels through the petrous part of the temporal bone, through which opening does it exit onto the face?

stylomastoid foramen

Through which of the following openings in the skull does the twelfth cranial (hypoglossal) nerve pass?

Hypoglossal canal

Why is the pterygoid process of the sphenoid bone an important feature of the skull to the dental professionals?

Serves as an attachment for the muscles of mastication

Through which of the following bony landmarks is the sense of smell carried by olfactory nerves?

Cribriform plate of the ethmoid bone

Which of the following skull bones are considered to be paired cranial bones?

Temporal bones

Through which bony opening do BOTH the right and left nasopalatine nerves exit onto the palate?

Incisive foramen

Which part of the temporal bone is involved in the temporomandibular joint?

Squamous part

Which of the following features is located on the tympanic part of the temporal bone?

External acoustic meatus

Located on the sphenoid bone, this bony opening is where the maxillary division of the 5th cranial/Trigeminal nerve passes through:

Foramen rotundum

Located on the sphenoid bone, this bony opening is where the mandibular division of the 5th cranial/Trigeminal nerve passes through:

Foramen Ovale

From the following list of structures, which structure is located on the petrous part of the temporal bone:

Mastoid process

Which of the following bones and their processes form the hard palate?

Horizontal plates of the palatine bones and palatine processes of the maxillae

Which of the following muscles originates on the inferior border of the mandible and inserts at each of the labial commissures (angles of the mouth) and makes a frown?

Depressor anguli oris muscle

Which of the following muscles raises each labial commissure of the lips to contribute to a patient's smile?

Zygomaticus major muscle

Which of the following muscles is considered an extrinsic tongue muscle that retracts the tongue?

Styloglossus muscle

Which of the following muscles originates on the inferior border of the mandible and inserts into the skin tissue of the chin and raises the chin?

Mentalis Muscle

Which of the following muscles when unilaterally contracted deviates the mandible to one side?

Lateral pterygoid muscle

Which of the following originates in the temporal fossa, inserts into the coronoid process and elevates the mandible/closes the jaw?

Temporalis muscle

From the following list of muscles, select which are considered muscles of mastication. (Select 2)

Masseter, medial pterygoid, temporal, lateral pterygoid (Mom Makes Tasty Lasagna)

What is another term used for auricular fossa of the temporomandibular joint?

Mandibular

Which of the following ligaments is NOT associated with the temporomandibular joint?

Stylohyoid ligament

Which of the following structures listed is NOT supplied by the lingual artery?

Mylohyoid muscle

Which of the following listed is NOT a branch of the external carotid artery?

Middle meningeal branch

Which branch of the maxillary artery supplies the maxillary anterior teeth by way of each tooth's apical foramen?

Anterior superior alveolar artery

Which of the following blood vessels NOT only protects the maxillary artery from being compressed during mastication but also accommodates changes in volume of the infratemporal fossa that occur when the mandible moves?

Pterygoid plexus of veins

The inferior alveolar artery supplies the mandibular teeth, buccal periodontium, gingiva, and mental regions. The inferior alveolar artery is part of the:

Maxillary artery

The retromandibular vein divides into the anterior retromandibular and posterior retromandibular veins. The posterior retromandibular vein joins the posterior auricular vein to form the:

External jugular vein