Question 1

The structural ruin from enamel caries is caused by?

Accepted Answer

The structural ruin from enamel caries is due to lowered pH causing demineralization from physiochemical progression or acidogenic. Caries of one tooth can affect the structural soundness of adjacent teeth. Once pulp necrosis sets-in, the tooth will need a root canal or will need to be extracted.

Question 2

Hard, discolored, and asymptomatic, describe what caries:

Accepted Answer

Hard, discolored, asymptomatic, and remineralization describe arrested carries. These caries are unable to remineralize. These caries are inactive and hold no bacterial infection and are unable to remineralize. There is no breakdown of tissue.

Question 3

Traumatic bone cysts are most common in:

Accepted Answer

Traumatic bone cysts are most common in young adults, particularly males. The cyst can be located anywhere, but are often in the jaw. Because patients do not remember being injured, the cyst is usually found while X-raying for another purpose. It is presumed that an internal hemorrhage failed to organize into a clot and quickly degenerated leaving an empty cavity.

Question 4

The function of the lateral pterygoid is:

Accepted Answer

The function of the lateral pterygoid is protrusion and lateral movements of the mandible. It originates at the infratemporal surface of the sphenoid greater wing and lateral surface of the lateral pterygoid. Insertion point is anterior portion of the condylar neck and TMJ capsule.

Question 5

Local anesthetics sign of toxicity are:

Accepted Answer

Local anesthetic signs of toxicity include tachycardia, hypertension, and metallic taste. Toxicity is due to elevated plasma levels from inadvertent intravascular injection or violation of maximum dosage.

Question 6

Aerobic and Anaerobic bacteria are common in oral infections. Which bacteria are gram-positive cocci?

Accepted Answer

Aerobic and Anaerobic bacteria are common in oral infections. Streptococcus spp. and Staphylococcus spp. are gram-positive cocci. The spread of infection depends on virulence of bacteria, anatomic location, and host defenses.

Question 7

Trigeminal neuralgia is a:

Accepted Answer

Trigeminal neuralgia is a nerve disorder. It is characterized by short-term stabbing or burning pain that is provoked by thermal stimulation without motor or nerve deficit. Trigeminal neuralgia is treated with antiepileptics, gabapentin, miscrovascular decompression, or a gamma knife.

Question 8

Trigeminal nerve is also known as:

Accepted Answer

Trigeminal nerve is also known as cranial nerve V. The nerve originates in the pons and acts as both a sensory and motor nerve. Three trunks originate in the semilunar ganglion: the ophthalmic, maxillary, and mandibular.

Question 9

Monoplane occlusion places posterior teeth:

Accepted Answer

Monoplane occlusion places posterior teeth flat to flat to achieve balance. This style of setting is used for its adaptability in patients with difficult jaw relations or abnormal conditions. However, this setting method limits mastication and esthetics.

Question 10

A 68-year-old patient complains of burning sensations in the mandibular ridge and the palatal area. What should be checked?

Accepted Answer

A 68-year-old patient complaining of burning sensations in the mandibular ridge and the palatal area needs to have their dentures checked. Additional signs and symptoms include clicking of the dentures, cheek biting, decreased salivary flow, and vitamin B and C deficiencies.

Question 11

What is addition silicone is used for?

Accepted Answer

Addition silicone is used for crown and bridge impressions. This material has dimensional stability and excellent surface detail. However, it is temperature sensitive and hydrophobic.

Question 12

Where is the main site of growth of the mandible?

Accepted Answer

The main site of growth of the mandible is the condylar cartilage that has proliferated. The growth thrust is upward and backward to maintain contact with the skull. During puberty, growth of the mandibular condyle increases posterior facial height, while the vertical growth is in the mandible.

Question 13

Translation is:

Accepted Answer

Translation is applying force at the tooth's center of resistance to move the entire tooth. Force is applied to the crown to control root movement forward or backwards without tipping or rotating.

Question 14

Torque is:

Accepted Answer

Torque is controlled root movement when the crown is held stable. The movement can be labiolingually or mesiodistally. Uprighting is referred to as mesiodistally controlled root movement.

Question 15

What teeth are affected by hypocalcified enamel matrix?

Accepted Answer

Neonatal and natal teeth have a tendency toward hypocalcified enamel matrix. This condition is a defect in which the enamel is soft, opaque, and undercalcified due to immaturity of ameloblasts. Although this condition is most often seen in primary teeth, it can affect secondary teeth.

Question 16

What is the expected eruption pattern?

Accepted Answer

The expected eruption pattern is mandibular central incisor, lateral incisor, first molar, canine, and second molar at six months. During eruption, all surfaces of the alveolar crest and the bony socket experience apposition of bone. The primary teeth will give way to permanent teeth at around six years of age.

Question 17

Impacted teeth are normally located where?

Accepted Answer

Impacted teeth are normally located in the maxillary canine. Impacted teeth create orthodontic and prosthodontics problems, especially if the adjacent teeth suffer substantial root damage. Impacted teeth are highly correlated with shortened or missing lateral incisors or lateral incisors roots. Impaction is surgically removed.

Question 18

What bone forms the mandible and maxilla?

Accepted Answer

The mandible and maxilla is formed from intramembranous ossification. Intramembranous ossification begins in connective tissue membranes where osteoprogenitor cells differentiate into osteoblasts. The osteoblasts create a collagen matrix that ossifies and forms the maxilla and mandible.

Question 19

Tooth trauma with no injury of the supporting structures is:

Accepted Answer

Tooth trauma that has no injury in the supporting structures are concussions. There is no evidence of displacement or mobility of tooth or teeth upon examination; however, the tooth will be tender. If the concussion is to primary teeth, there may be infection. There is minimal risk of pupal necrosis. There is an increased chance of pulpal necrosis with closed apices if teeth are permanent.

Question 20

Late incisor crowding between 15 to 23years of age is:

Accepted Answer

Late incisor crowding between 15 to-23 years of age is late mandibular growth theory. In late mandible growth, the incisors move distally relative to the body of the mandible, which causes the crowding of molars. This condition is prominent in those who are congenitally missing third molars.

Quiz 1: Dental Board