Introduction to Dentistry Exam
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Course Introduction
Introduction to Dentistry provides students with a foundational understanding of the dental profession, including its history, core principles, and essential practices. The course covers the structure and function of oral tissues, fundamentals of dental anatomy, basic oral health maintenance, and an overview of common dental diseases and prevention strategies. Students will also be introduced to the different specializations within dentistry, ethical considerations, patient communication skills, and the role of oral health in overall well-being. This course serves as an essential stepping stone for further studies in dental science and clinical practice.
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
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Chapter 1: Development and Structure of Cells and Tissues
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34 Verified Questions
34 Flashcards
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Sample Questions
Q1) T cells,B cells,NK cells,and macrophages are produced in the _________.
A) spleen
B) cerebellum
C) lymph nodes
D) bone marrow
Answer: D
Q2) 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.
Q3) Fertilization takes place in the distal part of the uterine tube.
A)True
B)False
Answer: True
Q4) Before the development of the vascular system,the vitelline system provides nutrients to the embryo.
A)True
B)False
Answer: True
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Chapter 2: Structure and Function of Cells, Tissues, and Organs
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36 Verified Questions
36 Flashcards
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Sample Questions
Q1) Which organ system secretes and regulates hormones in the blood?
Answer: Endocrine system
Q2) The absorption of nutrients occurs in which location?
A) Mouth
B) Stomach
C) Small intestine
D) Large intestine
Answer: D
Q3) Which of the following is not a major function of the urinary system?
A) Controls blood volume
B) Controls blood pressure
C) Controls testosterone levels
D) Controls urine composition
Answer: C
Q4) How does epithelial tissue renew itself?
A) Mitosis of the basal cells
B) Mitosis of the granular layer of cells
C) By shedding or sloughing the surface cells
D) Through nourishment of nearby blood vessels
Answer: A
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Chapter 3: Development of the Oral Facial Region
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31 Verified Questions
31 Flashcards
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Sample Questions
Q1) Which type of facial suture has a beveled or overlapping junction?
Answer: Squamosal
Q2) Blood vessels in the third pharyngeal arch form the __________.
A) dorsal aorta
B) common carotid arteries
C) pulmonary blood vessels
D) dorsal aorta, common carotid arteries, and pulmonary blood vessels
Answer: B
Q3) The heart begins beating at the end of the _________ week.
Answer: fourth
Q4) Identify three facial sutures.
Answer: Zygomaticomaxillary,frontomaxillary,zygomaticotemporal
Q5) The ultimobranchial body is the origin of which hormone?
A) Insulin
B) Calcitonin
C) Dopamine
D) Testosterone
Answer: B
Q6) 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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29 Flashcards
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Sample Questions
Q1) Identity two examples of apoptosis in prenatal development.
Q2) In the fifth week,the frontal process becomes known as the _______ process.
Q3) The second pharyngeal arch is also known as the __________ arch.
A) hyoid
B) inferior
C) superior
D) mandibular
Q4) In which direction do the palatine shelves grow on contact with the tongue in the seventh prenatal week?
Q5) Cleft palate will not occur without cleft lip.
A)True
B)False
Q6) The _________ separates the oral and nasal cavities.
Q7) An opening of a nostril into the oral cavity is classified as an incomplete cleft lip.
A)True
B)False
Q8) Epithelial cysts occasionally arise along the path of thyroid descent.
A)True
B)False
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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 term reduced enamel epithelium is best defined as which of the following?
A) Noncalcified cementum
B) Material deposited by odontoblasts in response to trauma
C) Fused layer of ameloblasts, enamel epithelium, and stratum intermedium
D) Layer of outer root sheath cells that disperse into small clusters around the root
Q2) Cementoblasts,fibroblasts,and osteoblasts originate from dental follicular cells.
A)True
B)False
Q3) Bone,dentin,cementum and enamel grow through incremental deposition.
A)True
B)False
Q4) Tooth development relies on an interaction between the ectoderm and mesenchyme.
A)True
B)False
Q5) Enamel develops from __________ cells,whereas dentin develops from ___________ cells.
Q6) List the five functional stages of change that each ameloblasts undergoes,in sequential order.
Page 7
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Chapter 6: Eruption and Shedding of the Teeth
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Sample Questions
Q1) Briefly describe why humans are considered diphyodonts.
Q2) Which of the following is the origin of osteoclasts?
A) Fibroclasts
B) Monocytes
C) Amino acids
D) Root resorption
Q3) During eruption,the epithelial attachment shifts to the cervical area.
A)True
B)False
Q4) Which structure(s)increase(s)the surface area of the osteoclast?
A) Fibroblasts
B) Ruffled border
C) Periodontal fibers
D) Epithelial diagram
Q5) The reduced enamel epithelium fuses with the oral epithelium during prefunctional eruption.
A)True
B)False
Q6) Name two characteristics of both primary and permanent dentitions.
Q7) Final maturation of the PDL fibers occurs at the _____ _____.
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Chapter 7: Enamel
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Sample Questions
Q1) Which of the following best defines incremental lines?
A) Ridges visible on the surface of enamel
B) Termination of dentinal tubules in enamel
C) Alternating dark and light bands of enamel rod groups
D) Lines that result from the rhythmic recurrent deposition of enamel
Q2) Prismless enamel is characterized by numerous and pronounced Hunter-Schreger bands.
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) In the Hunter-Schreger phenomenon,adjacent rod groups lie at right angles to each other.
A)True B)False
Q5) Etching the surface of enamel stimulates remineralization.
A)True
B)False
Q6) Name the organic component of enamel.
Page 9
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Chapter 8: Dentin
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Sample Questions
Q1) Dentinal tubules contain odontoblast processes,nerve terminals,and dentinal fluid.
A)True
B)False
Q2) 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
Q3) An ________ __________ is the defining characteristic of globular dentin.
Q4) Primary dentin consists of mantle,globular,and _________ dentin.
Q5) Odontoblast organelles are usually located within the cytoplasmic process.
A)True
B)False
Q6) The junction between dentin and enamel is scalloped.
A)True
B)False
Q7) Incremental lines are also known as _______ _________.
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Chapter 9: Dental Pulp
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Sample Questions
Q1) The term radicular pulp is best defined as which of the following?
A) Dental pulp located in the roots of teeth
B) Pulp with a soft, gelatinous consistency
C) The opening of root pulp into the periodontium
D) Dental pulp that occupies the crown of the tooth
Q2) The apical foramen is slightly larger in _____ teeth.
A) anterior
B) posterior
C) maxillary
D) mandibular
Q3) Name the three types of pulp stones.
Q4) The largest blood vessels found in the dental pulp are __________.
Q5) Teeth only perceive the sensation of pain.
A)True
B)False
Q6) Pulp stones only occur in erupted teeth.
A)True
B)False
Q7) How many pulps are present in the permanent dentition?
Q8) The ________ of the odontoblast is the largest part of the cell.
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Chapter 10: Cementum
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Sample Questions
Q1) The intermediate layer of cementum is _____ thick.
A) 10 cm
B) 10 mm
C) 10 µm
D) 10 nm
Q2) In what percentage of cases does cementum meet enamel?
Q3) In terms of cementum formation,what does OMG stand for?
Q4) Cementum resorption is rare,even in older patients.In fact,cementum is more resistant to resorption than bone.
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.
Q5) Intermediate cementum forms completely,before the deposition of secondary cementum begins.
A)True
B)False
Q6) Inner root sheath cells form the cellular-acellular cementum.
A)True
B)False
Page 12
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Chapter 11: Periodontium: Periodontal Ligament
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31 Verified Questions
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Sample Questions
Q1) Which of the following is found on the surface of cementum?
A) Fibroblasts
B) Cementicles
C) Cementocytes
D) Cementoblasts
Q2) The periodontal ligament is thinnest in the midroot zone.
A)True
B)False
Q3) Fibroblasts are most concentrated in the _______ _________.
Q4) List the five dentoalveolar fibers of the periodontal ligament.
Q5) Which pressure receptors are found in the periodontal ligament?
A) Ruffini
B) Pacinian
C) Meissner
D) All of the above
Q6) Cementoblasts repair resorbed cementum.
A)True
B)False
Q7) ___________ stem from monocytes within the blood vascular system.
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Chapter 12: Periodontium: Alveolar Process and Cementum
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Sample Questions
Q1) Bone marrow is the smallest organ in the body.
A)True
B)False
Q2) When teeth are moved,all parts of the suspensory apparatus must move simultaneously.
A)True
B)False
Q3) The alveolar process supports the roots of the teeth.
A)True
B)False
Q4) The alveolar crest is ___________ in the molar region.
A) flat
B) peaked
C) rounded
D) scalloped
Q5) Which best defines dehiscence?
A) Bone loss in the coronal area of the root
B) Colorless, ischemic periodontal ligament
C) Compact bony lining of the tooth socket
D) Inclination of permanent teeth to drift mesially
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Chapter 13: Temporomandibular Joint
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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) More blood vessels innervate the lateral and medial surfaces of the articular disk than the anterior and posterior areas.
A)True
B)False
Q3) Which ligament attaches to the lateral part of the disk?
A) Stylohyoid
B) Stylomandibular
C) Sphenomandibular
D) Temporomandibular
Q4) Articular remodeling is a response to _______________.
A) aging
B) inactivity
C) genetic dysfunction
D) environmental stress
Q5) Identify the four muscles of mastication.
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Chapter 14: Oral Mucosa
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34 Flashcards
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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) Nonkeratinocytes are also known as __________ cells.
Q3) During inflammation,lymphocytes and leukocytes can migrate into the gingival epithelium.
A)True
B)False
Q4) As oral mucosa ages,it appears less moist.
A)True
B)False
Q5) All epithelial cells function with desmosomes.
A)True
B)False
Q6) Hemidesmosomes attach the lamina propria to the stratum basal.
A)True
B)False
Q7) Name the five taste modalities of the oral cavity.
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Chapter 15: Salivary Glands and Tonsils
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Sample Questions
Q1) Which salivary gland is the largest?
A) Parotid
B) Palatine
C) Sublingual
D) Submandibular
Q2) All salivary glands can be classified as _______________.
A) buccal, labial, or mixed
B) serous, mucous, or mixed
C) parotid, submandibular, or sublingual
D) palatine, glossopalatine, or sublingual
Q3) Serous secretions are ________ protein and ________ carbohydrate.
A) 50%, 50%
B) 25%, 75%
C) low in, high in
D) high in, low in
Q4) Myoepithelial cells located on the pharyngeal tonsils help move secretions toward the oral cavity.
A)True
B)False
Q5) The _______________ tonsil is also known as the adenoid.
Page 17
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Chapter 16: Biofilms
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Sample Questions
Q1) Which of the following is the best definition for plaque?
A) A type of gingival inflammation
B) A stonelike concretion formed on the teeth
C) A bacterial biofilm on the surface of the teeth
D) An acellular thin film deposited on the surface of teeth from salivary proteins
Q2) Which organisms attach to the pellicle to form a thick layer of plaque?
A) Rods
B) Filamentous organisms
C) Desquamated epithelial cells
D) All of the above
Q3) Which disclosing solution will not permanently discolor composite restorations?
Q4) In tonsillitis,there is a dramatic increase in salivary leukocytes.
A)True
B)False
Q5) Subgingival calculus is ________ than supragingival calculus.
A) softer
B) harder
C) thicker
D) lighter
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