Dental Anatomy Test Questions
Course Introduction
Dental Anatomy is the study of the structure, function, and morphology of the human dentition and its supporting tissues. This course covers the identification, development, and classification of teeth, as well as their anatomical features such as cusps, ridges, roots, and pulp chambers. Emphasis is placed on differentiating primary and permanent teeth, dental notation systems, and the relationship between dental anatomy and oral health. Students also explore occlusion, tooth eruption patterns, and the role of dental anatomy in clinical practice, laying a foundational understanding essential for further studies in dentistry.
Recommended Textbook
Essentials of Oral Histology and Embryology A Clinical Approach 4th Edition by Daniel J. Chiego
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514 Verified Questions
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2
Chapter 1: Development and Structure of Cells and Tissues
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Sample Questions
Q1) Before the development of the vascular system,the vitelline system provides nutrients to the embryo.
A)True
B)False
Answer: True
Q2) The cardiovascular system originates from chondroblasts.
A)True
B)False
Answer: False
Q3) Smooth muscle is consciously controlled.
A)True
B)False
Answer: False
Q4) The information in mRNA is translated by ribosomes located on the surface of the rough endoplasmic reticulum.
A)True
B)False
Answer: True
Q5) Blood cells begin to form in the __________ __________ at weeks of development.
Answer: yolk sac
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Chapter 2: Structure and Function of Cells, Tissues, and Organs
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Sample Questions
Q1) Which term represents a single layer of cells?
A) Simple
B) Stratified
C) Cuboidal
D) Columnar
Answer: A
Q2) Which of the following insulates axons located outside the CNS?
A) Bone
B) Endomysium
C) Myelin sheath
D) Connective tissue
Answer: C
Q3) Internal organs (viscera)receive most of their neural impulses from which nervous system?
A) Somatic
B) Sensory
C) Afferent
D) Autonomic
Answer: D
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Chapter 3: Development of the Oral Facial Region
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Sample Questions
Q1) Which type of bone protects the brain?
A) Short
B) Dermal
C) Sesamoid
D) Membrane
Answer: D
Q2) The primitive mouth is known as the _________.
A) basion
B) sella turcica
C) stomodeum
D) tympanic membrane
Answer: C
Q3) Sutures are fibrous joints.
A)True
B)False
Answer: True
Q4) The heart begins beating at the end of the _________ week.
Answer: fourth
Q5) Which gland regulates the body's calcium balance?
Answer: Parathyroid
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Chapter 4: Development of the Face and Palate
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Sample Questions
Q1) Palatal development occurs during the __________ weeks of gestation.
A) first to third
B) fourth to sixth
C) seventh to ninth
D) tenth to twelfth
Q2) Palatal shelf elevation occurs slowly,over the course of several weeks.
A)True
B)False
Q3) White males develop a cleft lip more often than white females.
A)True
B)False
Q4) Bilateral nasal placodes appear in the seventh week of gestation.
A)True
B)False
Q5) Which muscle grows around the oral pit in the sixth prenatal week?
A) Buccinator
B) Mylohyoid
C) Orbicularis oris
D) Zygomatic major
Q6) The origin of the thyroid gland is the ________ _________.
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Chapter 5: Development of Teeth
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Sample Questions
Q1) During root development,the epithelial diaphragm __________.
A) fuses to the stratum intermedium
B) surrounds the apical opening of the dental pulp
C) forms the cortical plate, which covers the mandible
D) deposits an enamel matrix along the dentoenamel junction
Q2) Predentin calcifies to form dentin within ____ hours.
A) 12
B) 24
C) 48
D) 72
Q3) Which permanent tooth forms from the general lamina?
A) Molar
B) Incisor
C) Canine
D) Premolar
Q4) List the five functional stages of change that each ameloblasts undergoes,in sequential order.
Q5) The root lengthens more rapidly than the tooth erupts.
A)True
B)False
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Chapter 6: Eruption and Shedding of the Teeth
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Sample Questions
Q1) Shedding is the loss of mixed dentition caused by resorption of the roots.
A)True
B)False
Q2) Tooth eruption is clinically seen as which of the following?
A) Light and dark bands
B) Interlocking of the rods
C) Blanching of the mucosa
D) Crystallization of the enamel rods
Q3) The mixed dentition phase occurs from approximately _____ years of age.
A) birth to 2
B) 3 to 6
C) 8 to 12
D) 13 to 18
Q4) Which structure(s)increase(s)the surface area of the osteoclast?
A) Fibroblasts
B) Ruffled border
C) Periodontal fibers
D) Epithelial diagram
Q5) _________ are not successors of primary teeth.
Q6) Final maturation of the PDL fibers occurs at the _____ _____.
Page 8
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Chapter 7: Enamel
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Sample Questions
Q1) The neonatal line is best defined as which of the following?
A) An accentuated incremental line
B) A defect caused by the misdirection of enamel rods
C) Light and dark enamel rod groups, made visible with light
D) A series of dark growth rings noticeable in the cross section of enamel
Q2) Enamel rods extend perpendicular to the dentoenamel junction,but curve slightly toward the cusp tip.
A)True
B)False
Q3) Lamellae are cracks in the surface of enamel and are visible to the naked eye.
A)True
B)False
Q4) Ameloblasts deposit 4 µm of enamel rods daily.
A)True
B)False
Q5) Which part of the enamel rod is most sensitive to demineralization?
A) Tail
B) Core
C) Head
D) Sheath
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Chapter 8: Dentin
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Sample Questions
Q1) Mineralized tubules are associated with which type of dentin?
A) Mantle
B) Sclerotic
C) Reparative
D) Secondary
Q2) Which is the following is a hypermineralized collar of dentin that grows within the tubule?
A) Sclerotic dentin
B) Peritubular dentin
C) Intertubular dentin
D) Interglobular dentin
Q3) Which best defines sclerotic dentin?
A) The dentinal matrix that immediately surrounds the dentinal tubule
B) The first dentin formed and deposited at the dentinoenamel junction
C) Dentin directly underlying mantle dentin, comprising the bulk of primary dentin
D) Obliterated tubules, found mainly in areas of attrition, abrasion, fracture, and caries
Q4) Incremental lines are also known as _______ _________.
Q5) Name three areas in which sclerotic dentin can be found.
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Chapter 9: Dental Pulp
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Sample Questions
Q1) Which of the following is not found in the central part of the pulp?
A) Fibroblasts
B) Cementoblasts
C) Collagen fibers
D) Veins and arteries
Q2) Pulp stones only occur in erupted teeth.
A)True
B)False
Q3) Most pulpal nerve endings are located in which area?
A) Pulp horns
B) Central pulp
C) Apical foramen
D) Dentinoenamel junction
Q4) Inflammation of the pulp may spread to the ______.
A) dentin
B) enamel
C) predentin
D) peridontium
Q5) Name the three types of pulp stones.
Q6) How many pulps are present in the permanent dentition?
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Chapter 10: Cementum
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Sample Questions
Q1) Which of the following best defines the term ankylosis?
A) Alveolar bone fuses with cementum.
B) The cementum fuses with underlying dentin.
C) Alveolar bone fuses with the PDL ligament.
D) The cementum of two adjacent teeth fuses together.
Q2) A ________ ________ is created by the deposition of cementum following resorption.
Q3) Cementum is devoid of elastic fibers.
A)True
B)False
Q4) Intermediate cementum forms completely,before the deposition of secondary cementum begins.
A)True
B)False
Q5) Young children frequently develop free cementicles.
A)True
B)False
Q6) Intermediate cementum overlies dentin.
A)True
B)False
Page 12
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Chapter 11: Periodontium: Periodontal Ligament
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Sample Questions
Q1) Name two objects in the periodontal ligament that are phagocytosed by macrophages.
Q2) Cementoblasts repair resorbed cementum.
A)True
B)False
Q3) Tooth movement will elicit the ________ of cementum.
A) necrosis
B) ingestion
C) resorption
D) absorption
Q4) The overall general health of an individual affects the health of the periodontium.
A)True
B)False
Q5) The periodontal ligament is composed of fibers,cells,and ___________.
A) synovial fluid
B) visceral fascia
C) crevicular fluid
D) intercellular substance
Q6) ___________ stem from monocytes within the blood vascular system.
Page 13
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Chapter 12: Periodontium: Alveolar Process and Cementum
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Sample Questions
Q1) The alveolar crest is ___________ in the molar region.
A) flat
B) peaked
C) rounded
D) scalloped
Q2) Blood vessels and nerves penetrate the lamina dura.
A)True
B)False
Q3) Once formed,fibers attached to the cementum cannot change.
A)True
B)False
Q4) The size difference between a primary tooth its permanent successor is the leeway space.
A)True
B)False
Q5) Fenestration is best defined as which of the following?
A) Coronal border of the alveolar process
B) Bone loss in the coronal area of the root
C) Bone loss where the apical root penetrates cortical bone
D) Bundle of collagen fibers embedded in the alveolar bone proper
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Chapter 13: Temporomandibular Joint
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Sample Questions
Q1) Identify the four muscles of mastication.
Q2) Which of the following ligaments do not support the temporomandibular joint?
A) Stylohyoid
B) Stylomandibular
C) Sphenomandibular
D) Temporomandibular
Q3) Which of the following is a function of the temporomandibular joint capsule?
A) Provides joint lubrication
B) Supports articulatory movements
C) Encloses the lateral, medial, and posterior boundaries
D) Keeps the disk immobile when the head of the condyle moves
Q4) Name the two movements of the TMJ.
Q5) Every individual has eight muscles of mastication.
A)True
B)False
Q6) The ___________ compartment of the temporomandibular cavity is bound superiorly by the articular fossa and inferiorly by the disk.
Q7) The postnatal condylar head is a thick band of ___________.
Page 15
Q8) Which branches of the trigeminal nerve innervate the TMJ?
Q9) Name the four types of nerve endings in the TMJ.
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Page 16
Chapter 14: Oral Mucosa
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Sample Questions
Q1) Masticatory mucosa is found on the ____________.
A) lips
B) soft palate
C) alveolar ridges
D) surface of the tongue
Q2) Oral nerve endings are most highly concentrated ________ of the oral cavity.
A) on the roof
B) on the floor
C) in the anterior regions
D) in the posterior regions
Q3) Which of the following best describes the shape of the col between the anterior teeth?
A) Flat
B) Concave
C) Sharp peak
D) Slightly convex
Q4) Name the four types of papillae found on the tongue.
Q5) Rugae of the hard palate are ridges of tissue that function during mastication.
A)True
B)False
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Chapter 15: Salivary Glands and Tonsils
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Sample Questions
Q1) Leukocytes from the gingival crevices and lymphocytes from the tonsils,which are found in saliva,are known as __________ ____________.
Q2) The palatine,lingual,and pharyngeal tonsils compose the Waldeyer ring.
A)True
B)False
Q3) Myoepithelial cells have a muscular origin and an epithelial function.
A)True
B)False
Q4) Tonsils contain cells that secrete saliva.
A)True
B)False
Q5) Lymphocytes may transform into plasma cells.
A)True
B)False
Q6) The duct system consists of secretory and ____________ portions.
Q7) Pharyngeal tonsils are covered in stratified squamous epithelium or respiratory epithelium.
A)True
B)False
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Q8) The function of amylase is to aid in the digestion of _____________________.
Chapter 16: Biofilms
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Sample Questions
Q1) Subgingival calculus is ________ than supragingival calculus.
A) softer
B) harder
C) thicker
D) lighter
Q2) The ______________ of plaque is essential for the prevention of disease.
A) removal
B) disclosure
C) deposition
D) mineralization
Q3) Bacterial ghosts are calcified bacteria.
A)True
B)False
Q4) Which disclosing solution will not permanently discolor composite restorations?
Q5) The _________ allows plaque to form on the surface of the tooth.
Q6) Calculus may form on dental prostheses.
A)True
B)False
Q7) ____________ produce acids that can demineralize the surface of enamel.
Page 19
Q8) Dental plaque is characterized as a ________.
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