MCQs on Periodontal Ligament - Oral Histology part 2

# Width of PDL is :
A. O.10 mm
B. 0.50 mm
C. 0.25 mm
D. 0.75 mm

# Intermediate Plexus is seen in the:
A. Cementum
B. PDL
C. Pulp
D. Dentin

# In mammals independent and tough suspension for teeth is provided by:
A. Alveolar sockets
B. Cementum
C. Gubernacular cords
D. Periodontal membrane

# Bone adjacent to periodontal ligament that contains a great number of Sharpey's fibers is known as :
A. Lamina dura
B. Bundle bone
C. Lamina propria
D. Lamina densa

# The most abundant principal fiber group in periodontal ligament is :
A. Horizontal
B. Transseptal
C. Apical
D. Oblique

# Collagen biosynthesis occurs inside the :
A. Chondroblasts
B. Odontoblasts
C. Osteoblasts
D. Fibroblasts

# Which of the following groups of fibers are not attached to alveolar bone ?
A. Apical
B. Horizontal
C. Oblique
D. Transseptal
# Principal fibers of PDL are attached to :
A. Alveolar bone proper
B. Bundle bone
C. Lamellar bone
D. Cortical bone

# Periodontal ligament has predominantly:
A. Type II collagen fibers
B. Oxytalan fibers
C. Elastic fibers
D. Type I collagen fibers

# The calcified mass found in PDL are:
A. Cementicles
B. Osteoblasts
C. Cementoclasts
D. Osteoclasts

# Sharpey's fibers are derived from:
A. Hertwig's root sheath
B. Epithelial rest cells of Malassez
C. Alveolar bone
D. Dental follicle

# Intermediate plexus is absent in which of the following principal fibers:
A. Gingival
B. Oblique
C. Horizontal
D. Transseptal

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MCQs on Periodontal Ligament - Oral Histology Part 1

# Which of the following cells are the predominant connective tissue cells of the periodontal ligament?
A. Cementoblasts
B. Fibroblasts
C. Osteoblasts
D. Cell rests of Malassez

# The periodontal ligament:
A. Derives its blood primarily from the branches of vessels entering the pulp
B. Has a slow rate of turn over
C. Contains epithelial cells
D. Comprises primarily of type II collagen

# Which of the following is not the principal fiber group of the periodontal ligament ?
A. Horizontal
B. Oblique
C. Alveolar crest
D. Trans septal

# Anchoring fibrils are composed of:
A. Type V and VII collagen
B. Type I and III collagen
C. Type IV collagen
D. Type IV and III collagen

# Collagen molecule exhibits all of the following features EXCEPT :
A. Triple plated sheath
B. Mostly contains glycine residues
C. Exhibit cross striations at 64 micrometer
D. Intracellular in nature

# Remnants of Hertwig's root sheath are found in :
A. Gingiva
B. Alveolar bone
C. Cementum
D. Periodontal Ligament
# Age changes in the periodontal ligament include which of the following ?
A. Increased fibroplasia
B. Increased vascularity
C. Increased thickness
D. Decrease in the number of cementicles

# All of the following cells of periodontal ligament are of mesenchymal origin EXCEPT:
A. Fibroblasts
B. Multi totipotent cells
C. Cementoblasts
D. Cell rests of Malassez

# The attachment apparatus of tooth is composed of:
A. Gingiva,cementum and alveolar bone
B. Gingiva and cementum
C. Cementum and periodontal ligament
D. Periodontal ligament, cementum and alveolar bone

# The vascular supply of the periodontal ligament is :
A. Greatest in the middle third of a single rooted tooth
B. Greatest in the middle third of a multirooted tooth
C. A net-likee plexus that runs closer to the cementum than to the bone
D. A net-like plexus that runs closer to the bone than to the cementum

# Fibers of the periodontal ligament embedded in the bone are:
A. Sharpey's fibers
B. Tome's fibers
C. Elastic fibers
D. Ray's fibers

# Group of fibers, which resist the masticatory forces are:
A. Dentogingival
B. Transseptal
C. Oblique
D. Horizontal

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MCQs on Diseases of Salivary Glands - Oral Pathology Part 3

# Spindle cell carcinoma is a variant of :
A. Pleomorphic adenoma
B. Adenoid cystic carcinoma
C. Basal cell carcinoma
D. Squamous cell carcinoma

# Commonest site for ectopic salivary gland tumor is :
A. Tongue
B. Cheek
C. Palate
D. Neck

# Chemical Mumps is synonymous with:
A. Epidemic parotitis
B. Iodine mumps
C. Nutritional mumps
D. Nonspecific mumps

# Break up time (BUT) test is done in :
A. Sjogren's syndrome
B. Multiple sclerosis
C. SLE
D. Myasthenia gravis

# Salivary duct calculi :
A. Produce pain on eating
B. Are commonest in the parotid ducts
C. Are common cause of acute parotitis
D. Are associated with hypercalcemic states

# Sialoliths are stones found in the salivary duct and gland and are primarily composed of:
A. Hydroxyapatite
B. Potassium chloride
C. Unknown compounds of phosphates
D. Calcium chloride

# In Xerostomia, the salivary pH is:
A. Unaffected
B. Low
C. High
D. Increased in morning and decreased in day

# Pleomorphic adenoma is :
A. a teratomatous tumour of the salivary gland
B. a neuroendocrine cell tumour
C. multiple ectopic tissue proliferating in the salivary gland
D. myoepithelial or ductal reserve cell origin

# Which of the following statements about Sjogren's Syndrome is incorrect ?
A. MRI shows salt and pepper appearance
B. Lacrimal gland enlargement is common
C. Minor salivary gland biopsy is a diagnostic test
D. Pilocarpine is the most useful and convenient drug in its treatment


# Chocolate colored fluid is seen in the cystic space of:
A. Dentigerous cyst
B. Odontogenic keratocyst
C. Unicystic ameloblastoma
D. Papillary cystadenoma lymphomatosum

# Intra oral pleomorphic adenoma usually occurs in:
A. Buccal mucosa
B. Upper lip
C. Floor of the mouth
D. Palate

# A salivary gland tumor, which histologically shows a double layer of epithelial cells based on a reactive lymphoid stroma is:
A. Pleomorphic adenoma
B. Mucoepidermoid carcinoma
C. Acinic cell tumor
D. Warthin tumor

# Sjogren's syndrome affects :
A. Exocrine glands
B. Paracrine glands
C. Endocrine glands
D. Autocrine glands

# In which of the following salivary gland tumors, the tumor is composed of "intermediate cells" histologically ?
A. Adenoid cystic carcinoma
B. Mucoepidermoid carcinoma
C. Pleomorphic adenoma
D. Warthin's tumor

# Which of the following salivary gland tumors has highest rate of malignant transformation ?
A. Parotid
B. Submandibular
C. Sublingual
D. Minor

# The following are the high grade salivary malignancies , EXCEPT :
A. Basal cell adenocarcinoma
B. Mucoepidermoid carcinoma
C. Adenoid cystic carcinoma
D. Salivary duct carcinoma

# Treatment for recurrent ranula is :
A. Incision
B. Excision
C. Excision with adjacent glands
D. Marsupialization

# Sialography of normal salivary gland reveals the ductal architecture as having an appearance of :
A. Sausage string
B. Fruit-laden tree
C. Leafless tree
D. Ball in hand

# Microscopically, epimyoepithelial islands are typically seen in :
A. Sjogren's syndrome
B. Mucoepidermoid carcinoma
C. Epithelial-myoepithelial carcinoma
D. Myoepithelioma

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MCQs on Diseases of Salivary Glands - Oral Pathology Part 2

# The most common complication of mumps is :
A. Myocarditis
B. Orchitis
C. Uveitis
D. Conjunctivitis

# Adenoid cystic carcinoma is also known as :
A. Cylindroma
B. Pindborg tumor
C. Warthin's tumor
D. Pleomorphic adenoma

# Sialolith in the excretory duct will result in:
A. Chronic sialadenitis
B. Mucous retention cyst
C. Pleomorphic adenoma
D. Rupture of the cyst

# Parotid fatty change is a sign of :
A. Aging
B. Alcoholism
C. Malnutrition
D. None of the above

# Which tumor does not occur in minor salivary gland ?
A. Pleomorphic adenoma
B. Adenocarcinoma
C. Mucoepidermoid carcinoma
D. Warthin's tumor

# Leafless fruit laden tree or cherry-blossom appearance on a sialogram indicates :
A. Mucoepidermoid cell carcinoma
B. Acinar cell carcinoma
C. Sjogren's syndrome
D. Pleomorphic adenoma

# Sjogren's syndrome includes all except :
A. Xerostomia
B. Keratoconjunctivitis
C. Arthritis
D. Lymphoma

# Tender submandibular swelling is mostly due to:
A. Ludwig's angina
B. Stone or Sialolithiasis
C. Enlarged lymph nodes
D. All of the above

# Dilation of the salivary duct secondary to epithelial atrophy as a result of repeated inflammatory or infectious process is :
A. Sialodochitis
B. Sialadenitis
C. Sialolithiasis
D. Mucocele

# Saliva is increased by:
A. Cholinergic drugs
B. Anticholinergic drugs
C. Adrenergic drugs
D. None of the above


# The recurrence of pleomorphic adenoma is attributed to:
A. Presence of an incomplete capsule
B. Mixed origin
C. Absence of capsule
D. Perineural spread

# Xerostomia, enlargement of salivary and lacrimal glands is seen in:
A. Sicca syndrome
B. Sjogren's syndrome
C. Mickulicz's disease
D. None of the above

# Salivary gland aplasia is seen in:
A. Hemifacial microstomia
B. LADD syndrome
C. Mandibulo-facial dysostosis (Treacher Collins)
D. All of the above

# Acinic cell carcinomas of the salivary gland arise most often in the:
A. Parotid salivary gland
B. Minor salivary glands
C. Submandibular salivary glands
D. Sublingual salivary glands

# All of the following is the extraglandular manifestation of primary Sjogren's syndrome except:
A. Raynaud's phenomenon
B. Arthritis
C. Lymphoma
D. Thrombocytopenia

# Mixed tumors of the salivary glands are:
A. Most common in submandibular gland
B. Usually malignant
C. Most common in the parotid gland
D. Associated with calculi

# "Xerostomia" is seen in all of the following except :
A. Anticholinergic drugs
B. Dehydration
C. Sjogren's syndrome
D. Oral sepsis

# Cribriform, honeycomb or swiss cheese histology pattern is seen in:
A. Adenoid cystic carcinoma
B. Pleomorphic adenoma
C. Acinic cell carcinoma
D. Clear cell carcinoma

# Commonest salivary gland tumor in children :
A. Lymphoma
B. Pleomorphic adenoma
C. Adenoid cystic carcinoma
D. Mucoepidermoid carcinoma

# Adenolymphoma refers to:
A. Adenocarcinoma
B. Adenocystic lymphoma
C. Warthin's tumor
D. Pleomorphic adenoma

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