DCP (dr.abeer's SQ)

The Student Quiz (Dcp) Dr. abeer’s lectures Answer the following questions: ,[object Object]

…………….. or the unattached gingival is the terminal edge or border of the gingival surrounding the teeth.……………….. is the shallow crevice or space around the tooth bounded by the surface of the tooth on one side and the epithelium lining the free margin of the gingiva on the other side. ,[object Object], The ……………..forms the soft tissue wall of the gingival sulcus. Circle the correct answer (can be more than one): 1-The attached gingival is usually greatest in: a. anterior teeth( incisors) in mandible b. anterior teeth (incisors) in maxilla c. posterior teeth in maxilla a. c.b. 2- The interdental gingival is: a. refer to the picture above b. refer to the picture above c. refer to the picture above 3-Microscopic examination reveals that gingiva is composed of: Stratified squamous epithelium Underlying central core of connective tissue. Cuboidal cells 4-______________ have an important role in the immune reaction as antigen-presenting cells for lymphocytes. a. melanocytes. b. Langerhans cells c. merkel cells 5-_____________ provides the contact between the gingiva and the tooth a. JE (junctional epithelium) b. CEJ (cement enamel junction) c. GM (gingival margins) ____________ have an important role in the firm attachment of the cells to the internal basal lamina on the tooth surface. a. junctional epithelium b. sulcus c. hemodesmosomes. 7- __________ and the _________are considered a functional unit, referred to as the Dentogingival Unit. a. JE and gingival fibers b. JE and gingival margins c. cement enamel junction and gingival fibers 8- The ____________ permits the diffusion of biological substances between various structural elements. Ground subctance Lamina propria Glycoprotein 9- __________register pressure, touch, temperature, pain and proprioception. a. periodontal ligament b. Nerves c. alveolar bone 10- __________ is formed before the tooth reaches the occlusal plane. a. cementum b. acellular cementum c. cellular cementum 11-periodontal ligament fibroblasts : a. They produce cementoclast b. are considered cementum cells c. Their main function is to support the teeth. 12- cemental aplasia : a. low amount of cementum concentration b. excessive desposition of cementum c. Abnormalities in the thickness of cementum 13-cemental spikes: a. It’s caused by hypercementosis b. Indicated the deficiency of cementum c. Is caused by fluorosis 14-osteocytes : a. when they are in bone b. when they are in blood vessels c.when they are in the developing stage 15- canaliculi is : a. are canals in the bone b. are canals in the periodontuim c. are canals in the connective tissue of the oral cavity 16-They are large giant cells seen in clusters, Osteoblast osteocytes Osteoclast 17- Isolated areas in which the root is denuded of bone and the root surface is covered only by periosteum and overlying gingiva are termed a fenestration . b. gingival periosteum c. lingual bone 18-___________is another name for spongy bone a. Cancellous Bone b. trabecular bone c. compact bone 19- The outer layer of the bone is nourished with blood by _____________ system. a. haversian b. viscoelastic c. osteons 20- Stimulated osteoblast precursors release factors that induce osteoclast differentiation and activity. Osteoclasts remove bone mineral and matrix, creating an erosion cavity.this happens in: a. resting b. resorption c. formation Done by: Hessa Habib

DCP (dr.abeer's SQ)

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