Question 1

What drug category inhibits protein synthesis by binding to the 30S ribosome?

Accepted Answer

Tetracycline inhibits protein synthesis by binding to the 30S ribosome. The drug can produce both hypoplasia and intrinsic staining if taken while teeth are in the enamel developmental stage.

Question 2

Infantile osteopetrosis displays several facial deformity possibilities. Which deformity is not a facial deformity of infantile osteopetrosis?

Accepted Answer

Infantile osteopetrosis displays several facial deformity possibilities that do not include peeked nose. The disease facial deformities include broad face, hypertelorism, frontal bossing, and flattened nose. Additionally, the patient usually suffers delayed tooth eruption, blindness, facial paralysis, anemia, deafness, increased susceptibility to infections, and hepatosplenomegaly. Beyond blood transfusions and antibiotics, there is no defined treatment and death is likely before adulthood.

Question 3

The structural destruction of enamel is caused by:

Accepted Answer

The structural destruction of enamel is caused by lowered pH that induces demineralization from physiochemical progression or acidogenic.

Question 4

When writing a prescription, what information about the drug must be supplied?

Accepted Answer

When writing a prescription, information about the drug that must be supplied is drug name, dosage, numerical amount, drug form, directions, and refill instructions. Date issued, patient's full name, address, and date of birth; prescriber's full name, address, phone number, DEA number, and signature is additional needed information.

Question 5

Fluoridation can assist in decreasing the amount of caries. This is especially true for what age group?

Accepted Answer

Fluoridation can assist in decreasing the amount of caries. This is especially true in children since they usually have higher sugar intake, higher saliva production, and increased teeth spacing that boosts the fluoridation process.

Question 6

Dens in dent is clinically called:

Accepted Answer

Dens in dent or "tooth with a tooth"? is clinically called dens invaginatus. The invagination is lined with enamel and affects the maxillary lateral and central incisor most often. The signs and symptoms include periradicular inflammation, penetration through the outer tooth, and larger opening of normal coronal formation. Radiographically, the affected tooth will appear to have root enlargement and radiopaque enamel.

Question 7

Root resorption can be:

Accepted Answer

Root resorption can be external and internal. External root resorption is the loss of tooth structure on the root adjacent to the periodontal ligament. External root resorption is caused from trauma, orthodontic therapy, occlusal forces, and cysts or tumors. Internal root resorption is the loss of tooth from within the dental pulp and is caused by trauma or penetration of the pulp by caries.

Question 8

Type II osteogenesis imperfecta is what inheritance pattern:

Accepted Answer

Type II osteogenesis imperfecta is the autosomal dominant and autosomal recessive inheritance pattern. Signs and symptoms include flue sclera, opalescent dentin, and frequent fractures from extreme frailty. Ninety percent of babies with type II osteogenesis imperfecta are still born.

Question 9

What condition increases levels of calcium in the blood?

Accepted Answer

Hypoparathyroidism increase the levels of calcium in the blood from a decrease in functioning of the parathyroid glands. The parathyroid hormone controls the level of calcium in the blood. The failure of tooth eruptions, pitted enamel hypoplasia, hypocalcemia, and chvostek's are signs and symptoms of the disease. Vitamin D and supplementary calcium are used to normalize calcium levels.

Question 10

Periapical abscesses can be categorized as:

Accepted Answer

Periapical abscess can be categorized as symptomatic and asymptomatic. Periapical abscesses are an accumulation of inflammatory cells at the apex of a nonvital tooth. Adjacent to the nonvital, tooth there is an accumulation of purulent materials in the alveolus and swelling. If the abscess proliferates, it normally does so through the buccal plate. There is sensitivity to percussion and palpation, but there is no response to thermal or electric pulp tests. Patient may complain of headache, chills, fever, and malaise. Treatment consists of root canal, analgesics, and antibiotics.

Question 11

Prosthodontics is:

Accepted Answer

Prosthodontics are defined as a dental specialty concerned with maxillofacial abnormalities, congenital disorders, esthetics, and biocompatible substitutes. It is one of nine specialties in dentistry recognized by the American Dental Association.

Question 12

What condition is most often in conjunction with osteogenesis imperfecta?

Accepted Answer

The condition most often in conjunction with osteogenesis imperfecta is dentinogenesis imperfecta is an autosomal dominant condition that affects the formation of dentin. Signs and symptoms include blue brown discoloration with translucency, possible thin dentin with normal enamel thickness, and cervical fractures. Radiographically, the pulp chambers of the tooth appear to have bulbous crowns with cervical constriction and early destruction of pulp chambers and canals. Treatment includes full coverage of teeth and roots or overlay dentures.

Question 13

Sutures are jigsaw puzzle-like lines in the skull. What is the joint type?

Accepted Answer

Sutures are jigsaw puzzle-like lines in the skull called synarthrosis joints. There are three joint types: Temporomandibular joints, ellipsoidal joints, and synarthrosis joints. The sutures have very limited motion.

Question 14

When amalgam particles become imbedded under oral membranes, it is a/an?

Accepted Answer

When amalgam particles become imbedded under oral membranes, it is an amalgam tattoo. If particles can be seen radiographically, there is no treatment needed. If particles cannot be seen radiographically, than biopsy must be done to rule out oral cancer and melanocytic neoplasia.

Question 15

What condition exclusively affects the gingiva or edentulous alveolar ridge?

Accepted Answer

Peripheral giant cell granuloma exclusively affects the gingiva or edentulous alveolar ridge and can appear in color as red, purple, or blue. There is a female predisposition. Treatment involves removal of lesion down to the bone, removal of irritation sources, and teeth cleaning.

Question 16

Type III osteogenesis imperfecta is what inheritance pattern?

Accepted Answer

Type III osteogenesis imperfecta is both an autosomal dominant and autosomal recessive inheritance pattern. Blue sclera in infants, opalescent dentin, severe bone frailty, and increased mortality in older children are characteristics of this disease. There is no defined treatment for the condition; however, there is prevalence for a coexistence of dentinogenesis imperfects and there will be extensive restorative work needed.

Question 17

What condition is caused by an increase in thyroid hormone due to thyroid tumors?

Accepted Answer

Hyperthyroidism is caused by an increase in the thyroid hormone due to thyroid tumors. The condition is also caused by autoimmune stimulation of thyroid cells, pituitary adenomas, and hyperplastic thyroid tissue. Signs and symptoms include thyroid enlargement, eye protrusion, increased metabolic rate, and thyroid storm. Treatment includes radioactive iodine, methimazole, thyroidectomy, and radioactive iodine.

Question 18

When a drug dosage is increased to achieve the same effect as the first dosage, what has increased?

Accepted Answer

When a drug dosage is increased to achieve the same effect as the first dosage, drug tolerance has occurred. Drug tolerance can be physiological and psychological and can be due to drug abuse or a natural occurrence from constant exposure.

Question 19

"Rootless teeth"? is clinically called:

Accepted Answer

"Rootless teeth" is clinically called dentin dysplasia type I. The condition displays shortened roots due to disorganized radicular dentin with normal coronal enamel and dentin. Radiographically, the pulp chambers of permanent teeth are crescent-shaped, while in preliminary teeth the pulp chambers are destroyed. Due to increased tooth mobility, the patient is predisposed to periodontitis and tooth loss.

Question 20

A band of muscles that attach the lips, tongue, and cheeks to the alveolar ridges is the:

Accepted Answer

A band of muscles that attach the lips, tongue, and cheeks to the alveolar ridges is called the frenum. When surgical intervention is needed from trauma or deformity, the procedure is called a frenectomy. Mandible frenum traumas or deformities must be treated immediately to avoid muconginival defect from developing. If a frenectomy is needed in the maxilla, the incisors and laterals must first be erupted.

Quiz 1: Dental Board