oral path ch 5 (end of chapter questions)

Which term refers to a defect present at birth?

a. Anomaly

b.Inherited defect

c. Congenital defect

d. Developmental defect

c. Congenital defect

Which term refers to the joining of teeth by cementum only?

a. Fusion

b. Gemination

c. Twinning

d. Concrescence

d. Concrescence

Which term refers to the joining of teeth by cementum only?

a. Fusion

b. Dentinogenesis

c. Amelogenesis

d. Cementogenesis

d. Cementogenesis

Which teeth are often missing:

a. Canines

b. Deciduous second molars

c. Third molars

d. Premolars

c. Third molars

Which tooth is the most common supernumerary tooth?

a. Mesiodens

b. Distomolar

c. Paramolar

d. Hutchinson incisor

a. Mesiodens

Which teeth most often appear smaller than normal

a. Mandibular premolars

b. Maxillary incisors

c. Mandibular lateral incisors

d. Mandibular third molars

b. Maxillary incisors

Which term refers to the developmental anomaly that arises when a single tooth germ attempts to divide and results in the incomplete formation of two teeth?

a. Fusion

b. Gemination

c. Concrescence

d. Dilaceration

b. Gemination

Which term refers to the developmental anomaly that arises from the union of two normally separated adjacent tooth germs?

a. Twinning

b. Germination

c. Fusion

d. Dilaceration

c. Fusion

Which term refers to a sharp angulation or curve in the root of a tooth?

A. fusion

B. germination

C. concrescence

D. dilaceration

D. dilaceration

Which term refers to a developmental anomaly in which

teeth exhibit elongated, large pulp chambers and short

roots?

a. Dens invaginatus

b. Dens evaginatus

c. Taurodontism

d. Dilaceration

c. Taurodontism

Which developmental anomaly is often associated with a nonvital tooth and periapical lesions?

A. dens invaginatus

B. den evaginatus

C. taurodontism

D. talon cusp

A. dens invaginatus

Which of the following teeth most often exhibit supernumerary roots?

a. Maxillary first premolars

b. Maxillary third molars

c. Mandibular first molars

d. Maxillary first molars

b. Maxillary third molars

Which one of the following describes the appearance of enamel hypoplasia resulting from a febrile illness or vitamin deficiency?

a. pitting defects

b. yellowish-brownish discoloration

c. blackish-brown staining

d. chalky white spots

a. pitting defects

Which one of the following is associated with enamel hypoplasia resulting from congenital syphilis?

a. turner tooth

b. hutichinson incisors

c. taurodont

d. dens evaginatus

b. hutichinson incisors

Which of the following describes the appearance of enamel hypocalcification?

a. pitting defects

b. yellowish- brown discoloration

c. blackish-brown stains

d. chalky white spots

d. chalky white spots

Which term describes a tooth that has not erupted because of a lack of eruptive force?

a. Ankylosed

b. Impacted

c. embedded

d. fused

c. embedded

Which teeth are most often impacted?

a. Distomolars

b. Maxillary and mandibular 1st molars

c. Mandibular cuspids

d. Mandibular third molars

d. Mandibular third molars

Which term describes a tooth in which bone has fused to cementum and dentin and prevents the eruption of an

underlying permanent tooth?

a. Concrescence

b. Embedded

c. Ankylosed

d. Fused

c. Ankylosed

Which cyst is not an odontogenic cyst?

a. dentigerous cyst

b. primordial cyst

c. median palatal cyst

d. lateral periodontal cyst

c. median palatal cyst

The most common cause of the radicular cyst is:

a. pulpal inflammation

b. trauma

c. malignant infiltration

d. food impaction

a. pulpal inflammation

Which cyst is an odontogenic intraosseous cyst that forms around the crown of a developing tooth?

a. coronal cyst

b. dentigerous cyst

c. lateral periodontal cyst

d. eruption cyst

b. dentigerous cyst

Which cyst develops in place of a tooth?

a. dentigerous cyst

b. primordial cyst

c. follicular cyst

d. odontogenic keratocyst

b. primordial cyst

Which cyst is characterized by its unique microscopic appearance and frequent recurrence?

a. residual cyst

b. stafne bone cyst

c. odontogenic keratocyst

d. eruption cyst

c. odontogenic keratocyst

The lateral periodontal cyst is defined by its location. In which area is the lateral periodontal cyst most commonly found?

a. mandibular third molar area

b. maxillary tuberosity area

c. between the maxillary premolars

d. between the mandibular cuspid and first premolar

d. between the mandibular cuspid and first premolar

The teeth are vital with all of the following cysts except:

a. nasopalatine duct cyst

b. cyst of the palatine papilla

c. dentingerous cyst

d. periapical cyst

d. periapical cyst

Which of the following odontogenic cysts may be seen in patients with nevoid basal cell carcinoma syndrome (Gorlin syndrome)?

a. Odontogenic keratocyst

b. Calcifying odontogenic cyst

c. Glandular odontogenic cyst

d. Dentigerous cyst

a. Odontogenic keratocyst

Which of the following describes a radicular cyst left behind after extraction of the offending tooth?

a. Periodontal cyst

b. Gingival cyst

c. Odontogenic cyst

d. Residual cyst

d. Residual cyst

With which cyst may the patient complain of dysphagia?

a. Thyroglossal duct cyst

b. Median palatal cyst

c. Static bone cyst

d. Traumatic bone cyst

a. Thyroglossal duct cyst

Which cyst is considered a pseudocyst?

a. Odontogenic keratocyst

b. Traumatic bone cyst

c. Lymphoepithelial cyst

d. Primordial cyst

b. Traumatic bone cyst

Most examples of primordial cysts are what microscopically?

a. Odontogenic keratocyst

b. Calcifying odontogenic cyst

c. Glandular odontogenic cyst

d. Dentigerous cyst

a. Odontogenic keratocyst

Which term refers to the adhesion of the tongue to the floor of the mouth?

a. Ankylosis

b. Ankyloglossia

c. Anodontia

d. Amelogenesis

b. Ankyloglossia

Which of the following classically presents as a radiolucent lesion inferior to the mandibular canal?

a. Stafne defect

b. Odontogenic keratocyst

c. Aneurysmal bone cyst

d. Primordial cyst

a. Stafne defect

Which term refers to an ectopic mass of throid tissue located on the posterior dorsal tongue between the formaen cecum and the epiglottis?

a. thyroid cyst

b. thyroid tumor

c. lingual tonsil

d. lingual thyroid

d. lingual thyroid

Which term refers to the total absence of all teeth?

a. Anodontia

b. Hypodontia

c. Hyperdontia

d. Microdontia

a. Anodontia

Which term refers to the lack of one or more teeth?

a. Anodontia

b. Hypodontia

c. Hyperdontia

d. Microdontia

b. Hypodontia

Which tooth is the second most common supernumerary

tooth?

a. Taurodont

b. Mesiodens

c. Paramolar

d. Distomolar

d. Distomolar

Which term refers to abnormally small teeth?

a. Taurodontia

b. Macrodontia

c. Microdontia

d. Hypodontia

c. Microdontia

Which term refers to abnormally large teeth?

a. Taurodontia

b. Acromegaly

c. Macrodontia

d. Hypodontia

c. Macrodontia

Which tooth is the most likely location for an enamel pearl?

a. Maxillary molars

b. Maxillary second premolars

c. Mandibular premolars

d. Mandibular molars

a. Maxillary molars

Which location is the most likely for a talon cusp?

a. Canines

b. Incisors

c. Molars

d. Premolars

b. Incisors

Which term refers to an accessory cusp located on the occlusal surface of a tooth?

a. Mulberry cusp

b. Talon cusp

c. Dens invaginatus

d. Dens evaginatus

d. Dens evaginatus

Which term refers to the enamel hypoplasia of a permanent tooth that results from infection of a deciduous tooth?

a. Hutchinson tooth

b. Talon tooth

c. Turner tooth

d. Gorlin tooth

c. Turner tooth

Which term refers to the irregular areas of discoloration that result from fluoride ingestion?

a. Pitting defects

b. Developmental defects

c. Mottling defects

d. Extrinsic staining

c. Mottling defects

Which term refers to teeth that appear malformed and ghostlike on a dental radiograph?

a. Taurodontism

b. Enamel hypocalcification

c. Regional odontodysplasia

d. Enamel hypoplasia

c. Regional odontodysplasia

Which term refers to teeth that cannot erupt because of physical obstruction?

a. Fused

b. Ankylosed

c. Embedded

d. Impacted

d. Impacted

All of the following cause endogenous staining of teeth except one. Which one is the exception?

a. Tetracycline

b. Rhesus incompatibility

c. Penicillin

d. Neonatal liver disease

c. Penicillin

Enamel hypoplasia results from damage to the:

a. Odontoblasts

b. Ameloblasts

c. Fibroblasts

d. Cementoblasts

b. Ameloblasts

Hutchinson incisors and mulberry molars are associated with:

a. Odontodysplasia

b. Congenital syphilis

c. Neonatal liver disease

d. Febrile illnesses

b. Congenital syphilis

Natal teeth are teeth that present:

a. 2 months in utero

b. At birth

c. After 1 month

d. At 6 months

b. At birth

When a patient is missing six teeth without including third molars, the condition is specifically termed:

a. Hyperdontia

b. Oligodontia

c. Hypodontia

d. Microdontia

b. Oligodontia

A taurodont has which one of the following characteristics?

a. Talon cusp

b. Elongated pulp chambers

c. Long roots

d. Supernumerary roots

b. Elongated pulp chambers

Fluoride ingestion causing enamel hypoplasia can affect which of the following?

a. Maxillary posterior teeth

b. All teeth

c. One tooth

d. Mandibular incisors

b. All teeth

Accelerated growth hormone produced by the pituitary

before closure of the epiphyseal plates is called:

a. Cretinism

b. Acromegaly

c. Graves disease

d. Gigantism

d. Gigantism

Teeth that do not erupt because of physical obstruction are:

a. Ankylosed

b. Impacted

c. Embedded

d. Fused

b. Impacted

All of the following cysts within bone are pseudocysts except one. Which one is the exception?

a. Aneurysmal

b. Simple

c. Dentigerous

d. Traumatic

c. Dentigerous

The diagnosis of radicular cyst is made by:

a. Radiographic imaging

b. Microscopic examination

c. Pulp testing

d. Clinical report of just pain

b. Microscopic examination

Dentigerous cysts are most commonly found on which

unerupted or impacted tooth?

a. Maxillary canine

b. Distomolar

c. Mandibular third molar

d. Maxillary third molar

c. Mandibular third molar

The paramedian lip pit occurs:

a. In the commissure

b. In the midline area of the lower lip

c. In the center of the upper lip

d. On the mucosa of the upper lip

b. In the midline area of the lower lip

Which one of the following cysts in bone is a variant of the lateral periodontal cyst?

a. Gingival

b. Botryoid

c. Odontogenic keratocyst

d. Primordial

b. Botryoid

Which one of the following is clearly essential for the diagnosis of an odontogenic keratocyst?

a. Radiographic features

b. History of the lesion

c. Degree of clinical expansion

d. Histopathologic features

d. Histopathologic features

The Gorlin cyst is another name for the:

a. Odontogenic keratocyst

b. Calcifying odontogenic cyst

c. Glandular odontogenic cyst

d. Dentigerous cyst

b. Calcifying odontogenic cyst

All of the following statements regarding orthokeratinized odontogenic cysts are true except one. Which is the exception?

a. Lower recurrence rate than odontogenic keratocyst

b. Appear as radiolucent lesions

c. Part of nevoid basal cell carcinoma syndrome (Gorlin syndrome)

d. Diagnosis is made by histopathology

c. Part of nevoid basal cell carcinoma syndrome (Gorlin syndrome)

The soft tissue variant of the dentigerous cyst is the:

a. Follicular cyst

b. Eruption cyst

c. Gingival cyst

d. Lateral periodontal cyst

b. Eruption cyst

Which of the following does not represent a specific diagnosis or entity?

a. Lateral periodontal cyst

b. Odontogenic keratocyst

c. Dentigerous cyst

d. Globulomaxillary cyst

d. Globulomaxillary cyst

The most common developmental odontogenic cyst is the:

a. Odontogenic keratocyst

b. Calcifying odontogenic cyst

c. Radicular cyst

d. Dentigerous cyst

d. Dentigerous cyst

The most common odontogenic cyst overall is the:

a. Odontogenic keratocyst

b. Calcifying odontogenic cyst

c. Radicular cyst

d. Dentigerous cyst

c. Radicular cyst

All of the following appropriately pair an intraosseous cyst with its soft tissue counterpart except one. Which is the exception?

a. Dentigerous cyst: eruption cyst

b. Lateral periodontal cyst: gingival cyst

c. Nasopalatine duct cyst: nasolabial cyst

d. All of the above are correct

c. Nasopalatine duct cyst: nasolabial cyst

The presence of "ghost cells" is a feature of which of the following?

a. Odontogenic keratocyst

b. Calcifying odontogenic cyst

c. Glandular odontogenic cyst

d. Dentigerous cyst

b. Calcifying odontogenic cyst

Which of the lesions has the strongest predilection to appear as a radiolucent lesion crossing the midline of the mandible?

a. Odontogenic keratocyst

b. Primordial cyst

c. Glandular odontogenic cyst

d. dentigerous cyst

c. Glandular odontogenic cyst

Which of the following will classically present as a radiolucent lesion with scalloping in between the roots of teeth?

a. Simple bone cyst

b. Stafne defect

c. Aneurysmal bone cyst

d. Dentigerous cyst

a. Simple bone cyst

Which of the following may present with loss of the vestibular fold, labial swelling, and elevation of the ala of the nose?

a. Nasopalatine duct cyst

b. Nasolabial cyst

c. Thyroglossal duct cyst

d. Branchial cleft cyst

b. Nasolabial cyst

A Sistrunk procedure is the preferred surgical management for which of the following?

a. Branchial cleft cyst

b. Thyroglossal duct cyst

c. Lingual thyroid

d. Dermoid cyst

b. Thyroglossal duct cyst

The prognosis for the "historical" median mandibular cyst is dependent on:

a. Size of lesion

b. Vitality of teeth

c. Microscopic diagnosis

d. History of the lesion

c. Microscopic diagnosis

The eruption cyst is most commonly seen in the:

a. Permanent maxillary laterals

b. Maxillary deciduous first molar

c. Mandibular deciduous central incisor

d. Permanent maxillary first molar

c. Mandibular deciduous central incisor

Which one of the following is an essential component of the diagnosis for primordial cyst?

a. Location

b. Extraction site

c. Inflammatory response

d. That a tooth was never present

d. That a tooth was never present

Coronal dens invaginatus is seen most often in which one of the following?

a. Permanent maxillary central incisor

b. Permanent maxillary lateral incisor

c. Deciduous mandibular lateral incisor

d. Deciduous mandibular second molar

b. Permanent maxillary lateral incisor

Which statement about fusion is false?

a. Etiology could be hereditary

b. Involves confluence of dentin

c. Most common in anterior maxillary incisors

d. Never seen in deciduous teeth

d. Never seen in deciduous teeth

Which one of the following contains odontogenic epithelium with "ghost cells"?

a. Odontoma

b. OKC

c. Calcifying odontogenic cyst

d. Odontodysplasia

c. Calcifying odontogenic cyst

Which one of the following cysts is not a specific diagnostic entity?

a. Radicular

b. Globulomaxillary

c. Median palatal

d. Incisal canal

b. Globulomaxillary

The best way to confirm the diagnosis of a lingual thyroid is:

a. Complete removal

b. Incisional biopsy

c. Perform a thyroid scan

d. Perform a blood test for thyroid function

c. Perform a thyroid scan

Microscopically, the globulomaxillary cyst could be:

a. OKC

b. Periapical granuloma

c. Lateral periodontal cyst

d. Any of the above

d. Any of the above

Which cyst is always associated with a nonvital tooth?

a. Odontogenic keratocyst

b. Radicular

c. Lateral periodontal

d. Dentigerous

b. Radicular