Question 1

Incomplete or defective development of enamel is known as:

Accepted Answer

A)  Enamel hypoplasia 
B)  Hyperplastic enamel 
C)  Demineralization 
D)  Enamel hyperplasia 
A)  Enamel hypoplasia 
B)  Hyperplastic enamel 
C)  Demineralization 
D)  Enamel hyperplasia A

Question 2

Rests of Serres are epithelial remnants of dental lamina that are found in:

Accepted Answer

A)  Gingiva 
B)  Pulp 
C)  Dentinal tubules 
D)  Dental papillae 
A)  Gingiva 
B)  Pulp 
C)  Dentinal tubules 
D)  Dental papillae A

Question 3

A congenital abnormality commonly seen in persons with Down syndrome is:

Accepted Answer

A)  Microglossia 
B)  Macroglossia 
C)  Ankyloglossia 
D)  Bifid uvula 
A)  Microglossia 
B)  Macroglossia 
C)  Ankyloglossia 
D)  Bifid uvula B

Question 4

Ectoderm lining the primitive mouth gives rise to two horseshoe bands of thickened epithelium called:

Accepted Answer

A)  Enamel papilla 
B)  Dental papilla 
C)  Enamel lamina 
D)  Dental lamina 
A)  Enamel papilla 
B)  Dental papilla 
C)  Enamel lamina 
D)  Dental lamina

Question 5

Two lingual swellings grow rapidly and merge with the tuberculum impar to form the:

Accepted Answer

A)  Posterior one-third of the tongue 
B)  Posterior two-thirds of the tongue 
C)  Anterior one-third of the tongue 
D)  Anterior two-thirds of the tongue 
A)  Posterior one-third of the tongue 
B)  Posterior two-thirds of the tongue 
C)  Anterior one-third of the tongue 
D)  Anterior two-thirds of the tongue

Question 6

The developing embryo is covered with a layer of tissue called:

Accepted Answer

A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm 
D)  Duododerm 
A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm 
D)  Duododerm

Question 7

The enamel organ surrounds the dental papillae, which gives rise to:

Accepted Answer

A)  Enamel and ameloblasts 
B)  Dentin and odontoblasts 
C)  Dentin and cementoblasts 
D)  Cementum and periodontal ligament fibers 
A)  Enamel and ameloblasts 
B)  Dentin and odontoblasts 
C)  Dentin and cementoblasts 
D)  Cementum and periodontal ligament fibers

Question 8

The presence of multiple odontogenic keratocysts (OKCs) has been associated with which of the following syndromes?

Accepted Answer

A)  Lynch syndrome 
B)  Cowden syndrome 
C)  Nevoid basal cell carcinoma syndrome 
D)  Gardner syndrome 
A)  Lynch syndrome 
B)  Cowden syndrome 
C)  Nevoid basal cell carcinoma syndrome 
D)  Gardner syndrome

Question 9

Which of the following cysts may have a heart-shaped appearance?

Accepted Answer

A)  Primordial cyst 
B)  Nasopalatine duct cyst 
C)  Nasolabial cyst 
D)  Median palatine cyst 
A)  Primordial cyst 
B)  Nasopalatine duct cyst 
C)  Nasolabial cyst 
D)  Median palatine cyst

Question 10

Failure of palatal processes to fuse at week 11 results in clefting of the:

Accepted Answer

A)  Median lip mucosa 
B)  Hard palate 
C)  Soft palate only 
D)  Lip and palate 
A)  Median lip mucosa 
B)  Hard palate 
C)  Soft palate only 
D)  Lip and palate

Question 11

All of the following statements about dens invaginatus are true EXCEPT:

Accepted Answer

A)  It occurs most frequently in the posterior teeth. 
B)  Direct communication with the pulp in the cingulum area is common. 
C)  Pulp necrosis and apical pathology occur soon after tooth eruption. 
D)  Preventive restorations are often placed in the cingulum area. 
A)  It occurs most frequently in the posterior teeth. 
B)  Direct communication with the pulp in the cingulum area is common. 
C)  Pulp necrosis and apical pathology occur soon after tooth eruption. 
D)  Preventive restorations are often placed in the cingulum area.

Question 12

In the developed jaw, rests of Malassez are located within the:

Accepted Answer

A)  Periodontal ligament space 
B)  Root canals 
C)  Pulp chamber 
D)  Maxillary sinuses 
A)  Periodontal ligament space 
B)  Root canals 
C)  Pulp chamber 
D)  Maxillary sinuses

Question 13

Which of the following cysts often occurs above the mylohyoid muscle, and displaces the tongue back and upward toward the roof of the mouth?

Accepted Answer

A)  Dermoid cyst 
B)  Epidermoid cyst 
C)  Nasopalatine duct 
D)  Median palatine cyst 
A)  Dermoid cyst 
B)  Epidermoid cyst 
C)  Nasopalatine duct 
D)  Median palatine cyst

Question 14

By the sixth week in utero, the medial nasal processes form the philtrum of the lip, and the right and left maxillary processes form the sides of the upper lip. A disturbance at this time may result in:

Accepted Answer

A)  Cleft lip 
B)  Cleft palate 
C)  Cleft lip and cleft palate 
D)  Anodontia 
A)  Cleft lip 
B)  Cleft palate 
C)  Cleft lip and cleft palate 
D)  Anodontia

Question 15

Which of the following refers to the formation of a supernumerary cusp on a posterior tooth?

Accepted Answer

A)  Dens invaginatus 
B)  Dens evaginatus 
C)  Enamel pearl 
D)  Talon's cusp 
A)  Dens invaginatus 
B)  Dens evaginatus 
C)  Enamel pearl 
D)  Talon's cusp

Question 16

Double lip, benign nontoxic thyroid enlargement, and sagging eyelid tissues are characteristic of:

Accepted Answer

A)  Ascher syndrome 
B)  Austrian syndrome 
C)  Alagille syndrome 
D)  Arakawa syndrome 2 
A)  Ascher syndrome 
B)  Austrian syndrome 
C)  Alagille syndrome 
D)  Arakawa syndrome 2

Question 17

All of the following statements about neural crest cells in the head and neck region are true EXCEPT:

Accepted Answer

A)  They undergo extensive migration. 
B)  They arise along the lateral margins of the developing tongue. 
C)  They form tissue called ectomesenchyme. 
D)  They arise along the lateral margins of the neural tube. 
A)  They undergo extensive migration. 
B)  They arise along the lateral margins of the developing tongue. 
C)  They form tissue called ectomesenchyme. 
D)  They arise along the lateral margins of the neural tube.

Question 18

The degree of tetracycline staining in teeth is related to all of the following EXCEPT:

Accepted Answer

A)  Patient's age during drug administration 
B)  Dosage of the drug 
C)  Frequency of fluoride application 
D)  Duration of use 
A)  Patient's age during drug administration 
B)  Dosage of the drug 
C)  Frequency of fluoride application 
D)  Duration of use

Question 19

Fissured tongue is a component of which of the following syndromes?

Accepted Answer

A)  Denys-Drash syndrome 
B)  Harlequin syndrome 
C)  Melkersson-Rosenthal syndrome 
D)  Dubin-Johnson syndrome 
A)  Denys-Drash syndrome 
B)  Harlequin syndrome 
C)  Melkersson-Rosenthal syndrome 
D)  Dubin-Johnson syndrome

Question 20

Dentin of adjacent tooth buds, fused together to become a single mass, is referred to as:

Accepted Answer

A)  Concrescence 
B)  Fusion 
C)  Gemination 
D)  Dens evaginatus 
A)  Concrescence 
B)  Fusion 
C)  Gemination 
D)  Dens evaginatus

Incomplete or defective development of enamel is known as:

Rests of Serres are epithelial remnants of dental lamina that are found in:

A congenital abnormality commonly seen in persons with Down syndrome is:

Ectoderm lining the primitive mouth gives rise to two horseshoe bands of thickened epithelium called:

Two lingual swellings grow rapidly and merge with the tuberculum impar to form the:

The developing embryo is covered with a layer of tissue called:

The enamel organ surrounds the dental papillae, which gives rise to:

The presence of multiple odontogenic keratocysts (OKCs) has been associated with which of the following syndromes?

Which of the following cysts may have a heart-shaped appearance?

Failure of palatal processes to fuse at week 11 results in clefting of the:

All of the following statements about dens invaginatus are true EXCEPT:

In the developed jaw, rests of Malassez are located within the:

Which of the following cysts often occurs above the mylohyoid muscle, and displaces the tongue back and upward toward the roof of the mouth?

By the sixth week in utero, the medial nasal processes form the philtrum of the lip, and the right and left maxillary processes form the sides of the upper lip. A disturbance at this time may result in:

Which of the following refers to the formation of a supernumerary cusp on a posterior tooth?

Double lip, benign nontoxic thyroid enlargement, and sagging eyelid tissues are characteristic of:

All of the following statements about neural crest cells in the head and neck region are true EXCEPT:

The degree of tetracycline staining in teeth is related to all of the following EXCEPT:

Fissured tongue is a component of which of the following syndromes?

Dentin of adjacent tooth buds, fused together to become a single mass, is referred to as:

Introduction to Oral and Maxillofacial Pathology

Orofacial Injury and Reactive Disorders

Infectious Diseases

Immunologic Disease

Disorders of Genetics and Inheritance

Neoplasms of the Oral Soft Tissues and Facial Skin

Neoplasms of the Bones of the Mandible and Maxilla

Systemic Pathology and Oral Manifestations of Systemic Diseases

Filters

Exam 5: Developmental Disorders

Incomplete or defective development of enamel is known as:

Rests of Serres are epithelial remnants of dental lamina that are found in:

A congenital abnormality commonly seen in persons with Down syndrome is:

Ectoderm lining the primitive mouth gives rise to two horseshoe bands of thickened epithelium called:

Two lingual swellings grow rapidly and merge with the tuberculum impar to form the:

The developing embryo is covered with a layer of tissue called:

The enamel organ surrounds the dental papillae, which gives rise to:

The presence of multiple odontogenic keratocysts (OKCs) has been associated with which of the following syndromes?

Which of the following cysts may have a heart-shaped appearance?

Failure of palatal processes to fuse at week 11 results in clefting of the:

All of the following statements about dens invaginatus are true EXCEPT:

In the developed jaw, rests of Malassez are located within the:

Which of the following cysts often occurs above the mylohyoid muscle, and displaces the tongue back and upward toward the roof of the mouth?

By the sixth week in utero, the medial nasal processes form the philtrum of the lip, and the right and left maxillary processes form the sides of the upper lip. A disturbance at this time may result in:

Which of the following refers to the formation of a supernumerary cusp on a posterior tooth?

Double lip, benign nontoxic thyroid enlargement, and sagging eyelid tissues are characteristic of:

All of the following statements about neural crest cells in the head and neck region are true EXCEPT:

The degree of tetracycline staining in teeth is related to all of the following EXCEPT:

Fissured tongue is a component of which of the following syndromes?

Dentin of adjacent tooth buds, fused together to become a single mass, is referred to as:

Introduction to Oral and Maxillofacial Pathology

Orofacial Injury and Reactive Disorders

Infectious Diseases

Immunologic Disease

Disorders of Genetics and Inheritance

Neoplasms of the Oral Soft Tissues and Facial Skin

Neoplasms of the Bones of the Mandible and Maxilla

Systemic Pathology and Oral Manifestations of Systemic Diseases

Filters