histoexamII-2002 - Du HONOR CODE 2 gq EXAMINATION TWO...

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Unformatted text preview: Du HONOR CODE 2 gq EXAMINATION TWO, DENTAL HYGIENE #291, 29 OCTOBER 2002 What adult tissues are derived from the dental follicle? 1W QDPA 2mmp manl— What structures compress to form reduced enamel epithelium? A 0 ;. gift [2!" I o a E )3 age 1, A swim m Pimtigmggts [155 5 9—2/ ) What happens to this reduced enamel epithelium after the tooth has erupted? \_.2/ + ’fuses with the oral epithelium to form the attached (junctional) gingiva @ .rubbed off 6. destr0yed by abrasion d. forms the developmental cuticle 7/? . Where is Tome's granular layer found? In the odontogenic zone c. at the apml foramen ’ d. none of the above be 9 close to the cementodentinal junction in the root 1 L/ Hydroxyapatite is a substance found in; a. bone b. enamel c. cementum d. dentin .all of the above Enamel spindles are extensions of which cross the dentinoenamel junction , _ - ontobiast processes '\« K ., ameloblasts c cementoblasts d. tomes process @r F. The acquired pellicle is currently present on your enamel surface Gilli \{t 0®A predeciduous tooth can be present at birth. \\ x _ \ ':\ Q / HONOR CODE EXAMINATION TWO, DENTAL HYGIENE #291, 29 OCTOBER 2002 What function can be attributed to the cells of the inner enamel epithelium and the inner layer of cells of the root sheath? » a. induction 0f ceflngbtastsm b. induction of odontoblasts c. induction of pdl fibmbiasts ‘ .u of the above ption of a tooth List several histological changes that take place during eru . . Eng 109:3; flmm ggpm a cg pmr £5;le {Nu List the three stages of tooth eruption. 1. flCfim pg My, 3. giggfigmg l The neonatal line in enamel is an accentuated incremental line and is the resuit of @ birthing trauma b. too much sun c. caries d. alcohol toxicity at that extend from the surface to the DEJ are Thin sheets etc anic material in en m ‘ ed W5) Layne has Twisted groups of enameis rods in the area of cusp tips are called 23!; [2; l V' , 4 J enamel. . anal/[e - Mineral deposition in dentinal tubules produces Wm SC, 61 o 36 The portion of the root sheath that bends inward is termed the raosm Epithelial rests are derived from \W cells. root— gnaw-t" h Are there any epithelial rests in the periodontal tissues of your mouth? A? What are they doing? W Periodontal li ament fibers are embe into the alveolar bone proper are termed fibers. . "charge 3 ' HONOR CODE EXAMINATION TWO, DENTAL HYGIENE #291, 29 OCTOBER 2002 fine the following 10 terms. nglion: m5 nmq Ce.“ basket; in PNE Bell Stage The OEWQHQI LthJQa. {’01}th bta‘st’b OfidOdOn and @1983; (1)0an ahxeloblafi‘" Weumgcm Cell. & “3 thaé‘iaffig {IV-{2r “€33“: EChao MW Lateral lamina \A Mm? WM and: U3 0» mum Wen m U Phagocytosis: QAWBO’ termer‘oé c M (Ll F J. Predentin 001mm blaste Sewage "\H‘: loaf-ore wbfimfin J . Ankylosiswgose 0? Z mlMIwach (3b SWIY‘ WeBone “(1’3 81) 8300ij \OdaUtr Bong base 0F alveaius Teflkymata: done-0.9 11w GLU$ > . mmlaie (mwfigy m ix ehmu‘ mwwstabén Q ADH2 Student: (Loam me?) Wu! l in List, in order from the margin of the predentin: 1 Odontoblasts, 2. cell rich zone 3. cell free zone 4.parietal layer of nerves, 5. pulp r. a. 1.2.3.4.5 . 1.3.2.4,5 V 8 c. 2, 3, 4. 5, 1 d. 1, 2, 4, 5, 3 . The portion of the dental lamina that relates only to primary tooth development is; a. general lamina _ / lateral lamina V . . successional lamina / ’ d. degenerating lamina 3 Which layer of the enamel organ is associated with blood vessels? @inner enamel epithelium @stratum intermedium c stellate reticulum @outer enamel epithelium? (Ewe w (1%” F. The ameloblast resorbs the majority of proteins and other organic materials m enamel during mineralization. w 3 HONOR CODE . 5 EXAMINATION TWO, DENTAL HYGIENE #291, 29 OCTOBER 2002 What Condition occurs most often? @ Cementum overlaps enamel b. Cementum and enamel meet 0. A gap occurs between the two fit: a logical cause for excessive cementum foundin the bifurcation area in an older ' nt. ‘ Bone YCSOYp them . flu“ o £¢|ust Galorwhuin Just before the ameloblasts die, they secrete adfiWhiCh protects the maturing enamel of the W as it empts into the oral cavity. CI evelopmmaJ Eu.“ cu @r F. Four ameloblasts are required to produce an enamel rod. 1 Name four cells capable of formrng collagen fibers 1) ts 2) 3W 4) \o )(cervlcal enamel (J inserts into both alveolar bone and cementum yd perforating fibers F provides exchange of nutrients O finer enamel epith. \ present in cells actively secreting amelogenins " ,ef Type I collagen Q less well calcified enamel /f./ capillary 3 area of mitosis of enamel organ 1 ’grmonocyte g L one result of injury to the pulp \/ )(outer enamel epith. 6 secreted by odontoblasts, osteoblasts /i/contains R.E.R. l contains a capillary plexus H keen/ml loop a; progenitor cell for osteoclasts 61 @r F. Dr. Chiego’s cat’s name is Taffy and his dog's name is Dr. lndiana Jones. ...
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