10201. Epithelium of oral mucous membrane is_______________?
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A. Only para keratinized

B. Non keratinized

C. Ortho, para and non keratinized

D. Keratinized

10202. Epithelium of the inner surface of the gingival sulcus______________?
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A. Has prominent rete pegs

B. Is keratinized

C. Has no rete pegs

D. Is para-keratinized

10203. Which of the following factors are primarily contributory to the shedding of deciduous tooth ?
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A. Masticatory pressure

B. Hydrostatic

C. Vascular pressure

D. Oncotic pressure

10205. Extracted teeth should be preserved in_____________?
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A. Saline

B. Xylene

C. 10% alcohol

D. 10% Formalin
10206. The red zones of lips have_____________?
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A. very small number of sebaceous glands, if any

B. 30% Sebaceous glands

C. 75% sebaceous glands

D. Absolutely no sebaceous glands

10207. Difference between the skin and mucosa of cheek is_______________?
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A. Keratinized mucosa of cheek

B. Rete pegs

C. Thick lamina propria on skin of cheek

D. Thin lamina and non keratinized mucosa of cheek
10208. The first sign of future deciduous teeth as a thickening of oral ectoderm appears at about_____________?
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A. 25th day of Intra uterine life

B. 20 wks of Intra uterine life

C. 56th day of Intra uterine life

D. 34th day of Intra uterine life

10209. Epithelial attachment is derived from____________?
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A. Dental sac

B. Reduced enamel epithelium

C. Dental papilla

D. Inner enamel epithelium

10210. All of the following is lined by stratified squamous epithelium, except ?
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A. Oropharynx

B. Lips

C. Tongue

D. Roof of the soft palate
10211. The range of level of fluoride secreted by the glands into the mouth is_____________?
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A. 0.006-0.007 ppm

B. 0.007-0.005 ppm

C. 0.004-0.005 ppm

D. 0.007-0.08 ppm

10212. Biomechanism that unites the epithelium to the tooth surface is_____________?
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A. Internal basal lamina

B. Epithelial attachment

C. Junctional epithelium

D. Reduced enamel epithelium

10214. Specific stain for fat cells is___________?
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A. Eosin & haematoxylin

B. Cresyl violet

C. Sudan III

D. Carbol fuschin

10215. Movement of tooth to close the intermaxillary gap during eruption is due to____________?
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A. Passive eruption

B. None of the above

C. Physiological tooth migration

D. Active eruption
10216. In resorption of roots of the primary teeth, the dental pulp_____________?
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A. Plays a passive role

B. Aids in formation of secondary dentin slowing down resorption

C. Becomes a fibrotic non-vital mass

D. Initiates resorption from the inner surface of roots

10217. Tooth buds of permanent mandibular incisors are situated_____________?
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A. Labial to primary teeth

B. Inferior to primary teeth

C. A and B

D. Lingual to primary teeth

10218. Masticatory mucosa is____________?
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A. Sub keratinised

B. Para keratinised

C. Non keratinised

D. Ortho keratinised
10219. Merkel cells are found in which of the following tissue ______________?
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A. Reticular of dermis

B. Epidermis

C. Papillary layer of dermis

D. Hypodermis

10220. Epithelial cells which ultimately keratinize are known as_____________?
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A. Non-Keratinizing cells

B. Keratinizing cells

C. Melanocytes

D. Clear cells

10222. The major cells seen in gingiva are______________?
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A. Odontoblasts

B. Merkel cells

C. Fibro blast

D. Cementoblasts

10223. Minor salivary glands are present in the submucosa through out the oral mucosa except for the______________?
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A. Gingiva and anterior part of hard palate

B. Retromolar area and hard palate

C. Lip and posterior third of the hard palate

D. Tongue and soft palate

10224. Tooth eruption is due to______________?
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A. Proliferation of cells at crypt

B. Osteoclastic activity

C. Eruptive force

D. Exforliation of primary tooth

10225. The deciduous teeth can be differentiated from permanent teeth by_____________?
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A. Dentinal tubule arrangement

B. Enamel prismatic arrangement

C. Mineral content

D. Primary and secondary dentin

10226. Keratohyaline granules are more evident in_______________?
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A. Keratinised

B. Orthokeratinized

C. Parakeratinised

D. Non keratinized

10229. Which of the following statement is false______________?
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A. Resorption of roots of deciduous incisors and canines begins on their lingual surfaces

B. Resorption of roots of deciduous molars begins on their inner surfaces

C. Shedding of deciduous teeth is delayed in the absence of their successor teeth

D. None of the above
10231. Gubernacular canal and gubernacular cord are seen in relation to____________?
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A. Succedaneous teeth

B. None of the above

C. Deciduous teeth

D. Permanent teeth

10232. After the eruption of crown, reduced enamel is known as_____________?
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A. Reduced enamel epithelium

B. Primary attachment epithelium

C. Secondary attachment epithelium

D. Primary enamel cuticle

10233. Teeth with out antagonist if erupt is called____________?
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A. Supra erupted

B. Over erupted

C. Submerged

D. Stable

10234. Which of the following is correct_______________?
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A. Parakeratinished epithelium is characterized by superficial cells with pyknotic nuclei and absence of stratum granulosum

B. Non-keratinized epithelium is characterized by absence of stratum granulosum and stratum corneum, The surface cells are nucleated

C. In ortho keratinisation the superficial cells lose their nuclei, but stratum granulosum is present

D. All of the above
10235. The connective tissue of the gingiva is known as the______________?
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A. Lamina propria

B. Dental cuticle

C. Fibroblasts

D. Lamina dura

10236. Stratum Germinativum of the oral epithelium is the term given to_______________?
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A. Basal cells and parabasal spinous cells

B. Granular cell layer

C. Basal cell layer

D. Spinous cells and granular cells

10238. Color of the normal gingiva is_____________?
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A. Red

B. None of the above

C. Coral pink

D. Pink

10239. A suitable fixative for a routine biopsy specimen is_____________?
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A. 20% formalin

B. 40% formalin

C. 10% formalin

D. 10% alcohol

10240. Masticatory mucosa in the oral cavity covers the_______________?
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A. Alveolar mucosa and vestibular fornix

B. Lip and cheek

C. Gingiva and hard palate

D. Floor of the mouth and soft palate

10242. The most accepted theory of tooth eruption is____________?
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A. Hydrodynamic theory

B. Clone theory

C. Periodontal ligament traction theory

D. Vascular theory

10243. Which enzyme is associated with the mineralization_____________?
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A. Acid phosphatase

B. Adenosine triphosphate

C. Alkaline phosphatase

D. Amino peptidase

10244. Osteoblasts appear basic gram staining due to______________?
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A. Acidic ground substance

B. Presence of basic ground substance

C. Increased mitochondria

D. Increased ribonucleic acid
10245. In mineralization which one of the following is known as Epitaxy ?
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A. Booster Mechanism

B. Cartier/s Adenosine Triphosphate theory

C. Alkaline Phosphatase theory

D. Seeding theory
10247. Epithelial attachment is_____________?
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A. Microscopically it resembles basal lamina

B. Attachment of ameloblasts to the tooth

C. Derived from secondary attachment epithelium

D. All of the above
10248. Stratum granulosum is not present in_____________?
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A. Non keratinized epithelium

B. Hyper orthokeratosis

C. Hyper parakeratosis

D. Sulcular epithelium

10249. Enamel tufts are_______________?
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A. Thin tuft like structure extending from enamel surface of dentin enamel junction

B. Tuft like structure arising from dentin-enamel junction towards enamel surface

C. None of the above

D. Odontoblastic processes extending into enamel

10250. Stipplings______________?
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A. All of the above

B. Disappeared in progressing gingivitis due to edema and this change is reversible

C. Due to alternate elevations and depressions in epithelium

D. Functional adaptation to mechanical impact