Preclinical Dentistry
Final Test Solutions
Course Introduction
Preclinical Dentistry is an essential foundational course designed to prepare students for clinical practice in the field of dentistry. This course focuses on the development of manual dexterity, technical skills, and a thorough understanding of dental anatomy through hands-on laboratory exercises and simulations. Students gain proficiency in basic dental procedures such as cavity preparation, restorative techniques, impression making, and the use of dental instruments and materials. Emphasis is placed on infection control, patient safety, and adherence to ethical standards. By the end of the course, students acquire the competencies necessary to transition from simulated environments to the care of real patients in clinical settings.
Recommended Textbook
Essentials of Oral Histology and Embryology A Clinical Approach 4th Edition by Daniel J. Chiego
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16 Chapters
514 Verified Questions
514 Flashcards
Source URL: https://quizplus.com/study-set/488 Page 2
Chapter 1: Development and Structure of Cells and Tissues
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34 Verified Questions
34 Flashcards
Source URL: https://quizplus.com/quiz/9024
Sample Questions
Q1) Name two hormones produced by the placenta.
Answer: Students should answer with two of the following: estrogen,progesterone,human chorionic gonadotropin,placental growth factor,human placental lactogen,and lactogenic hormone.
Q2) Which organelle produces microtubules?
A) Nucleus
B) Centriole
C) Golgi apparatus
D) Endoplasmic reticulum
Answer: B
Q3) The foramen ovale is an opening between the right and left atria of the heart.
A)True
B)False
Answer: True
Q4) Melanocytes are responsible for skin pigment.
A)True
B)False
Answer: True
Q5) Myotome produces ___________ tissue.
Answer: muscle
3
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Chapter 2: Structure and Function of Cells, Tissues, and Organs
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36 Verified Questions
36 Flashcards
Source URL: https://quizplus.com/quiz/9025
Sample Questions
Q1) Simple squamous epithelium functions as a lining in which location?
A) Mouth
B) Vagina
C) Kidney
D) Pharynx
Answer: C
Q2) All body sensations are relayed to the ______and the _______.
A) brain, spinal cord
B) afferent, efferent systems
C) voluntary, involuntary muscles
D) sympathetic, parasympathetic divisions
Answer: A
Q3) Which function is associated with the skin?
A) Excretes waste products
B) Absorbs nutrients from ingested food
C) Supplies a framework for muscle and ligament attachments
D) Relays information from the glands to the central nervous system
Answer: A
Q4) ________ return blood to the heart.
Answer: Veins
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Chapter 3: Development of the Oral Facial Region
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31 Verified Questions
31 Flashcards
Source URL: https://quizplus.com/quiz/9026
Sample Questions
Q1) The glossopharyngeal nerve (IX)provides taste sensation to the anterior two thirds of the tongue.
A)True
B)False
Answer: False
Q2) Meckel's cartilage acts as a framework for the developing mandible.
A)True
B)False
Answer: True
Q3) Meckel's cartilage provides structure for the developing _______.
A) maxilla
B) mandible
C) temporal bone
D) zygomatic bone
Answer: B
Q4) The muscles of facial expression arise from the hyoid arch.
A)True
B)False
Answer: True
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Chapter 4: Development of the Face and Palate
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29 Verified Questions
29 Flashcards
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Sample Questions
Q1) The second pharyngeal arch is also known as the __________ arch.
A) hyoid
B) inferior
C) superior
D) mandibular
Q2) Which best defines the term nasal fin?
A) Oblique groove extending from the nostrils to the eyes
B) Medial nasal process that composes part of the upper lip
C) Zone of fusion that binds the maxillary and medial processes
D) Wedge-shaped process that assists in the formation of the palate
Q3) Which significant change occurs in the fifth prenatal week?
A) The heart begins to beat.
B) The bilateral placodes develop into nostrils.
C) The palatine shelves grow medially and contact the tongue.
D) The eyes move from the side of the face to the front of the face.
Q4) White males develop a cleft lip more often than white females.
A)True
B)False
Q5) Identity two examples of apoptosis in prenatal development.
Q6) List the components of the Waldeyer tonsillar ring.
Page 6
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Chapter 5: Development of Teeth
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32 Verified Questions
32 Flashcards
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Sample Questions
Q1) The successional lamina is vital to the development of primary teeth.
A)True
B)False
Q2) The primary cuticle is best defined as which of the following?
A) Mineralized, mature enamel
B) A cell junction complex, which attaches one ameloblast to another
C) An organic substance secreted on the surface of enamel by ameloblasts
D) An unmineralized protein secreted by ameloblasts in a young enamel matrix
Q3) The terminal bar apparatus is a series of hemidesmosomes.
A)True
B)False
Q4) A patient with oligodontia is congenitally missing more than six permanent teeth.
A)True
B)False
Q5) Bone,dentin,cementum and enamel grow through incremental deposition.
A)True
B)False
Q6) Enamel develops from __________ cells,whereas dentin develops from ___________ cells.
Page 7
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Chapter 6: Eruption and Shedding of the Teeth
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30 Flashcards
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Sample Questions
Q1) The prefunctional eruptive phase is characterized by dormancy in the tissues overlying,surrounding,and underlying the teeth.
A)True
B)False
Q2) 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
Q3) The lack of development of the pulp proliferative zone leads to root formation failure.
A)True
B)False
Q4) Name two characteristics of both primary and permanent dentitions.
Q5) 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
Q6) _________ are not successors of primary teeth.
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Chapter 7: Enamel
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33 Verified Questions
33 Flashcards
Source URL: https://quizplus.com/quiz/9030
Sample Questions
Q1) Lamellae are cracks in the surface of enamel and are visible to the naked eye.
A)True
B)False
Q2) Hunter-Schreger bands extend through half to two thirds of the enamel.
A)True
B)False
Q3) Ameloblasts migrate away from the dentinoenamel junction as they produce enamel rods.
A)True
B)False
Q4) Enamel varies in density and hardness.
A)True
B)False
Q5) Each enamel rod is formed by a single ameloblast.
A)True
B)False
Q6) Light and dark enamel rod groups are known as striae of Retzius.
A)True
B)False
Q7) A tuft is a developmental defect in enamel filled with _________ material.
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Chapter 8: Dentin
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30 Verified Questions
30 Flashcards
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Sample Questions
Q1) _________ dentin forms when newly recruited odontoblasts begin depositing dentin.
Q2) Odontoblast organelles are usually located within the cytoplasmic process.
A)True
B)False
Q3) Odontoblastic injury during a cavity preparation usually results in ________ dentin.
Q4) Dead tracts develop when odontoblasts die from trauma or old age.
A)True
B)False
Q5) The appositional growth of dentin is apparent in which feature?
A) Incremental lines
B) Lateral canaliculi
C) Transparent dentin
D) Interglobular spaces
Q6) An ________ __________ is the defining characteristic of globular dentin.
Q7) Secondary dentin is deposited more quickly than primary dentin.
A)True
B)False
Q8) Incremental lines are also known as _______ _________.
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Chapter 9: Dental Pulp
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33 Verified Questions
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Sample Questions
Q1) The largest blood vessels found in the dental pulp are __________.
Q2) The odontogenic zone is composed of a cell-free zone,a cell-rich zone,odontoblasts,and the parietal plexus of nerves.
A)True
B)False
Q3) Odontoblasts are the second most prevalent type of cell found in the pulp.
A)True
B)False
Q4) Which of the following best defines the zone of Weil?
A) Cell-free region
B) High cell density
C) Concentrated plexus of nerves
D) Large veins, arteries, and pericytes
Q5) Pulpal fibrosis is associated more with aging than injury.
A)True
B)False
Q6) Compared with radicular pulp,coronal pulp is smaller and contains fewer elements.
A)True
B)False
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Chapter 10: Cementum
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) Cementum forms more rapidly than dentin.
A)True
B)False
Q2) Some __________ have long processes that lie in canaliculi.
A) lacunae
B) cementicles
C) cementocytes
D) collagen fibers
Q3) Which condition occurs most often?
A) Cementum meets the enamel.
B) Cementum forms on the enamel.
C) Enamel forms over the cementum.
D) A gap occurs between the cementum and enamel.
Q4) Which of the following is formed by cementoblasts and maintained by cementocytes?
A) Extrinsic fiber bundles
B) Intrinsic fibers of cementum
C) Calcified ligament fiber bundles
D) Principal fibers of the periodontal ligament.
Q5) The initial layer of cementum is known as ____________.
Page 12
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Chapter 11: Periodontium: Periodontal Ligament
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31 Verified Questions
31 Flashcards
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Sample Questions
Q1) ___________ stem from monocytes within the blood vascular system.
Q2) _______________ is (are)highly cellular,vascular,and neural.
A) Oxytalan fibers
B) Interstitial spaces
C) Periodontal ligaments
D) Fibrous connective tissue
Q3) The jaw jerk reflex is a test for which structure?
A) Pterygoid muscle
B) Trigeminal nerve
C) Periodontal ligament
D) Temporomandibular joint
Q4) Macrophages are normally present in the periodontal ligament.
A)True
B)False
Q5) Fibroblasts are most concentrated in the _______ _________.
Q6) The periodontal ligament (periodontium)has a width of _________ mm.
A) 0.015 to 0.038
B) 0.15 to 0.38
C) 0.045 to 0.080
D) 0.45 to 0.80
Page 13
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Chapter 12: Periodontium: Alveolar Process and Cementum
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31 Verified Questions
31 Flashcards
Source URL: https://quizplus.com/quiz/9035
Sample Questions
Q1) Which is identified radiographically as the lamina dura?
A) Pulp
B) Cementum
C) Sharpey fibers
D) Alveolar bone proper
Q2) Bone marrow is the smallest organ in the body.
A)True
B)False
Q3) When a tooth is lost,the adjacent supporting tissues are also lost.
A)True
B)False
Q4) The alveolar crest is ___________ in the molar region.
A) flat
B) peaked
C) rounded
D) scalloped
Q5) Mesial drift is a significant occurrence during the deciduous dentition period.
A)True
B)False
Q6) Identify and describe two types of bone loss.
Page 14
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Chapter 13: Temporomandibular Joint
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32 Verified Questions
32 Flashcards
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Sample Questions
Q1) 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
Q2) Which of the following best describes the synovial membrane?
A) Thin layer of synovial cells
B) Sterile, highly viscous fluid
C) Dense, collagenous fibrous pad
D) Fibrous capsule that encloses the temporomandibular joint
Q3) The postnatal condylar head is a thick band of ___________.
Q4) The action of the lower half of the TMJ is a gliding motion.
A)True
B)False
Q5) The articular fossa undergoes which developmental change?
A) Deepens and expands
B) Becomes brittle and narrow
C) Loses flexibility and perforates
D) Becomes increasingly scalloped in shape
Q6) The _________ is a spine of bone arising from the rim of the mandibular foramen.
Page 15
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Chapter 14: Oral Mucosa
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34 Verified Questions
34 Flashcards
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Sample Questions
Q1) Which papillae do not house taste buds?
A) Foliate
B) Filiform
C) Fungiform
D) Circumvallate
Q2) Which of the following is characterized by thin,nonkeratinized epithelium?
A) Free gingiva
B) Median raphe
C) Interdental col
D) Filiform papillae
Q3) During inflammation,lymphocytes and leukocytes can migrate into the gingival epithelium.
A)True
B)False
Q4) 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
Q5) Name the four types of papillae found on the tongue.
Page 16
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Chapter 15: Salivary Glands and Tonsils
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33 Verified Questions
33 Flashcards
Source URL: https://quizplus.com/quiz/9038
Sample Questions
Q1) Mucous cells discharge ________________.
A) mucin
B) amylase
C) merocrine
D) zymogen granules
Q2) Lymphocytes may transform into plasma cells.
A)True
B)False
Q3) Serous acinar cells secrete into the lumen of the acinus and then drain directly into intercalated ducts.
A)True
B)False
Q4) The intercalated ducts of the salivary glands contain mitochondria,endoplasmic reticulum,and secretory granules.
A)True
B)False
Q5) Name the ducts that lead from the parotid and submandibular salivary glands.
Q6) Tonsils contain cells that secrete saliva.
A)True
B)False
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Chapter 16: Biofilms
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32 Verified Questions
32 Flashcards
Source URL: https://quizplus.com/quiz/9039
Sample Questions
Q1) The _________ allows plaque to form on the surface of the tooth.
Q2) Bacterial ghosts are calcified bacteria.
A)True
B)False
Q3) It takes almost 10 days for the pellicle to develop into a thick plaque.The composition of the plaque varies,depending on the location of the plaque and the extent of gingival disease.
A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The first statement is false; the second is true.
Q4) Serumal calculus is usually a darker color.
A)True
B)False
Q5) The composition of the dental plaque depends,in part,on the extent of gingival disease.
A)True B)False
Q6) Which disclosing solution will not permanently discolor composite restorations?
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Q7) ____________ produce acids that can demineralize the surface of enamel.