MCQOPTIONS
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MCQOPTIONS
This section includes 370 Mcqs, each offering curated multiple-choice questions to sharpen your Medical Subjects knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
Dental lamina is active up to_______________? |
| A. | 1 year |
| B. | 2 years |
| C. | 3 years |
| D. | 4 years |
| Answer» E. | |
| 302. |
Dendritic cell located in the stratified squamous keratinizing epithelium of the oral cavity include_____________? |
| A. | Keratinocytes |
| B. | Mast cells |
| C. | Melanocytes |
| D. | Myoepithelila cells |
| Answer» D. Myoepithelila cells | |
| 303. |
Dehydration of specimen is carried out by____________? |
| A. | By using 10% formalin |
| B. | By using liquid or solid Co2 |
| C. | By using increasing percentages of alcohol |
| D. | By using 5% nitric acid |
| Answer» D. By using 5% nitric acid | |
| 304. |
Dead tracts in ground section appears as_____________? |
| A. | Dentinal tubules |
| B. | Coarse fibril bundles arranged at right angle to the dentinal surface |
| C. | Black in transmitted light and white in reflected light |
| D. | White in transmitted light and dark in reflected light |
| Answer» D. White in transmitted light and dark in reflected light | |
| 305. |
Dark bonds that are present in enamel rods at intervals of 4 μms are______________? |
| A. | Neonantal bands |
| B. | Cross striations |
| C. | Striae of Retzius |
| D. | Hunter-Schregar bands |
| Answer» C. Striae of Retzius | |
| 306. |
Compared to the inter tubular dentin, peritubular dentin is characterized by which of the following ? |
| A. | Greater stainability |
| B. | Lasser content of inorganic salts |
| C. | greater content of inorganic salts |
| D. | Greater content of large collagen fibres |
| Answer» D. Greater content of large collagen fibres | |
| 307. |
Color of the normal gingiva is_____________? |
| A. | Pink |
| B. | Red |
| C. | Coral pink |
| D. | None of the above |
| Answer» D. None of the above | |
| 308. |
Collagen molecule exhibits all of the following features except_____________? |
| A. | Triple pleated sheath |
| B. | Mostly contains glycine residues |
| C. | Exhibit cross striations at 64 μm |
| D. | Intracellular in nature |
| Answer» E. | |
| 309. |
Collagen biosynthesis occurs inside the______________? |
| A. | Chondroblasts |
| B. | Odontoblasts |
| C. | Osteoblasts |
| D. | Fibroblasts |
| Answer» E. | |
| 310. |
Chronological hypoplasia is_____________? |
| A. | Hypoplasia of local origin |
| B. | Hypoplasia of systemic origin |
| C. | Hypoplasia of hereditary origin |
| D. | None of the above |
| Answer» C. Hypoplasia of hereditary origin | |
| 311. |
Chronic periapical inflammation is usually associated with____________? |
| A. | Ankylosis |
| B. | Resorption of cementum |
| C. | Hypertrophy of cementum |
| D. | Hyperplasia of cementum |
| Answer» E. | |
| 312. |
Centre of the disc in TMJ is_____________? |
| A. | Avascular |
| B. | Devoid of nervous tissue |
| C. | Avascular & deviod of nervous tissue |
| D. | None of the above |
| Answer» D. None of the above | |
| 313. |
Cementum_____________? |
| A. | Is derived from the sheath of hertwig |
| B. | Is acellular in the apical third of the tooth |
| C. | Often overlaps the enamel |
| D. | Does not contain collagen fibres |
| Answer» D. Does not contain collagen fibres | |
| 314. |
Cementum that forms in conjunction with root end formation and eruption_____________? |
| A. | Cellular cementum |
| B. | Acellular cementum |
| C. | Both of the above |
| D. | None of the above |
| Answer» B. Acellular cementum | |
| 315. |
Cementum is_____________? |
| A. | Avascular |
| B. | Vascular |
| C. | Has blood supply initially only |
| D. | None of the above |
| Answer» B. Vascular | |
| 316. |
Cementum formation is seen_______________? |
| A. | After dentin formation |
| B. | Before dentin formation |
| C. | Both are formed at same time |
| D. | None of the above |
| Answer» B. Before dentin formation | |
| 317. |
Cementicles are found in the_____________? |
| A. | Gingiva |
| B. | Periodontal ligament |
| C. | Alveolar bone |
| D. | Cementum |
| Answer» C. Alveolar bone | |
| 318. |
Cellular cementum is____________? |
| A. | First formed cementum |
| B. | Less calcified than acellular type |
| C. | More calcified than acellular type |
| D. | Less irregular |
| Answer» C. More calcified than acellular type | |
| 319. |
Cellular cementum and compact bone contain____________? |
| A. | Sharpehy’s fibres and elastic fibres |
| B. | Collagen fibres and blood vessels |
| C. | Canaliculi and incremental lines |
| D. | Lacunae and elastic fibres |
| Answer» D. Lacunae and elastic fibres | |
| 320. |
Cells occurring in greatest number in pulp are______________? |
| A. | Cementoblasts |
| B. | Fibroblasts |
| C. | Osteoblasts |
| D. | Ameloblasts |
| Answer» C. Osteoblasts | |
| 321. |
Cells of the spinous layer are generally_______________? |
| A. | Larger than the basal cells |
| B. | Smaller than the basal cells |
| C. | same size as that of basal cells |
| D. | None of the above |
| Answer» B. Smaller than the basal cells | |
| 322. |
Carmalt’s glands are______________? |
| A. | Major salivary glands |
| B. | Minor salivary glands (Retromolar) |
| C. | Minor salivary gland ( lingual) |
| D. | Taste Buds |
| Answer» C. Minor salivary gland ( lingual) | |
| 323. |
Calcium content of lamina dura is______________? |
| A. | More than the other parts of alveolar bone |
| B. | Less than the other parts of alveolar bone |
| C. | Same as in other parts of alveolar bone |
| D. | Less than the cementum |
| Answer» B. Less than the other parts of alveolar bone | |
| 324. |
Calcified tissue is absent in______________? |
| A. | Enamel |
| B. | Dentin |
| C. | Cementum |
| D. | Pulp |
| Answer» E. | |
| 325. |
calcification in enamel starts at____________? |
| A. | Enamel matrix |
| B. | Root |
| C. | CEJ |
| D. | DEJ |
| Answer» E. | |
| 326. |
Butt joint in cementoenamel junctions seen is _________% of cases? |
| A. | 10% |
| B. | 30% |
| C. | 60% |
| D. | 90% |
| Answer» C. 60% | |
| 327. |
Bundle bone is part of____________? |
| A. | Periodontal ligament |
| B. | Alveolar bone |
| C. | Cementum |
| D. | Longbones |
| Answer» C. Cementum | |
| 328. |
Bulk of lamina propria of the gingiva is made of collagen type_______________? |
| A. | I |
| B. | II |
| C. | III |
| D. | IV |
| Answer» B. II | |
| 329. |
Buccal mucosa is_______________? |
| A. | Keratinized |
| B. | Non-keratinized |
| C. | Parakeratinised |
| D. | Orthokeratinized |
| Answer» C. Parakeratinised | |
| 330. |
Bone adjacent to periodontal ligament that contains a great number of sharpey’s fibres is known as______________? |
| A. | Lamina dura |
| B. | Bundle bone |
| C. | Lamina propria |
| D. | Lamina densa |
| Answer» C. Lamina propria | |
| 331. |
Bone at forming stage has_________________? |
| A. | Osteoclasts, osteoblasts, osteoid |
| B. | Odontoblasts & megakaryocyte |
| C. | Megakaryocytes, osteoblasts, osteoclasts |
| D. | None of the above |
| Answer» B. Odontoblasts & megakaryocyte | |
| 332. |
Blunt cell processes seen on the developing ameloblasts are celled as________________? |
| A. | Tomes fibres |
| B. | Tomes layer |
| C. | Tomes processes |
| D. | Odontoblastic processes |
| Answer» B. Tomes layer | |
| 333. |
Blood supply of ameloblast for most of its life cycle comes form_______________? |
| A. | Dental papilla |
| B. | Reduced enamel organ |
| C. | Dental Sac |
| D. | Dental pulp |
| Answer» D. Dental pulp | |
| 334. |
Biomechanism that unites the epithelium to the tooth surface is_____________? |
| A. | Internal basal lamina |
| B. | Junctional epithelium |
| C. | Reduced enamel epithelium |
| D. | Epithelial attachment |
| Answer» C. Reduced enamel epithelium | |
| 335. |
Basic metabolic unit of bone is_______________? |
| A. | Osteon |
| B. | Osteoblast |
| C. | Osteocyte |
| D. | Osteoclast |
| Answer» B. Osteoblast | |
| 336. |
Basement membrane________________? |
| A. | Contains lamina lucida & Lamina dura |
| B. | Consists luratihyaline granules |
| C. | consists of lamina densa and lamina lucida |
| D. | consists of desmosomes and hemi desmosomes |
| Answer» D. consists of desmosomes and hemi desmosomes | |
| 337. |
Basal bone is____________? |
| A. | That part of the bone embracing apices of root of teeth |
| B. | Lower border of the mandible |
| C. | Ramus of the mandible |
| D. | That part of the bone containing teeth |
| Answer» B. Lower border of the mandible | |
| 338. |
Bartholins duct is the name of_______________? |
| A. | Parotid duct |
| B. | Submandibular glands |
| C. | Sublingual duct |
| D. | Lacrimal duct |
| Answer» D. Lacrimal duct | |
| 339. |
Atypical or osteodentin is formed due to disturbance during____________? |
| A. | Morphodifferentiation |
| B. | Histodifferentiation |
| C. | Apposition |
| D. | Initiation |
| Answer» C. Apposition | |
| 340. |
At the cemento enamel junction, which of the following occurs_____________? |
| A. | Cementum meets enamel |
| B. | Cementum overlaps enamel |
| C. | Cementum does not meet enamel |
| D. | All of the above |
| Answer» E. | |
| 341. |
At the CEJ cementum overlaps enamel about____________? |
| A. | 55 to 60% |
| B. | 60 to 65% |
| C. | 65 to 70% |
| D. | 70 to 75% |
| Answer» C. 65 to 70% | |
| 342. |
Approximately how many enamel rods will be present in a maxillary molar ? |
| A. | 5 million |
| B. | 7 million |
| C. | 9 million |
| D. | 12 million |
| Answer» E. | |
| 343. |
Any insult to cells in apposition stage result in______________? |
| A. | Hutchinson’s incisor |
| B. | Osteodentin formation |
| C. | Enamel hypoplasia |
| D. | Anodontia |
| Answer» D. Anodontia | |
| 344. |
Anchoring fibrills 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 |
| Answer» B. Type I and III collagen | |
| 345. |
An enzyme present in saliva which causes cell wall lysis____________? |
| A. | Lysozhyme |
| B. | Peroxidase |
| C. | Lactoferin |
| D. | Hyaluronidase |
| Answer» B. Peroxidase | |
| 346. |
Among various glands, salivary gland secretion is unique in that, its secretions is unique in that, its secretion are controlled by___________? |
| A. | Hormones |
| B. | Nerves |
| C. | Chemicals |
| D. | All of the above |
| Answer» C. Chemicals | |
| 347. |
Among the following the structure that is most calcified is_______________? |
| A. | Enamel lamella |
| B. | Enamel rod |
| C. | Enamel spindle |
| D. | Enamel tuft |
| Answer» C. Enamel spindle | |
| 348. |
Ameloblasts is______________? |
| A. | A cell from which tooth enamel is formed: |
| B. | A tissue from which tooth erupts |
| C. | A tumour of the jaw |
| D. | Pertaining to dentin |
| Answer» B. A tissue from which tooth erupts | |
| 349. |
Alveolar process helps in providing_____________? |
| A. | Support and retention to the complete denture |
| B. | Boundaries for the tongue during speech |
| C. | Attachment to muscles of facial expression |
| D. | Support the natural teeth |
| Answer» E. | |
| 350. |
Alveolar bone proper is also known as: or Which of the following is seen as lamina dura in an IOPA radiograph ? |
| A. | Lamina lucida |
| B. | Lamina densa |
| C. | Lamina propria |
| D. | Lamina dura |
| Answer» E. | |