Structural Of The Teeth

Question 1

Marks primary calcification of enamel

Answer 1

Incremental lines of retzius

Question 2

Appositional/incremental growth of enamel

Answer 2

Incremental lines of retzius

Question 3

Represents lines of retzies as they meet at the surface of enamel

Answer 3

Perikymata (incremental lines of retzius)

Question 4

More pronounced incremental lines

Answer 4

Neonatal lines

Question 5

crosses bands of retzius

Answer 5

Transverse striations

Question 6

Apposition growth of enamel is how many in transverse srtiation?

Answer 6

4um/day

Question 7

Alternate light and dark bands

Answer 7

Hunter schreir bands

Question 8

Found in inner 2/3 of the enamel

Answer 8

Hunter schreir bands

Question 9

Originates from DEJ, lateral spread of caries

Answer 9

Enamels tufts

Question 10

Cracks on surface of enamel

Answer 10

Enamel lamellae

Question 11

Pathway for bacteria to penetrate the enalem

Answer 11

Enamel lamellae

Question 12

Extenion of dentinal tubules that penetrates DEJ

Answer 12

Enamel spindles

Question 13

May serves as pain receptors
DEJ hypersensitivity

Answer 13

Enamel spindles

Question 14

Scalloped for attachment

Answer 14

Dentino-enamel junction

Question 15

Covers dentinal tubules

Answer 15

Peritubular dentin (dentinal matrix)

Question 16

Main bulk, located between tubules

Answer 16

Intertubular dentin (dentinal matrix)

Question 17

Extension of odontoblast

Answer 17

Odontoblastic process (dentinal tubules)

Question 18

Contains dentinal flui

Answer 18

Periodontoblastic space (dentinal tubules)

Question 19

From plexus of raschkow

Answer 19

Intratubular nerve (dentinal tubules)

Question 20

Secretoryactivity of dentin

Answer 20

Incremental lines of von ebner

Question 21

Accentuation of growth lines

Answer 21

Contour lines of owen

Question 22

Non fusion of globules of calospherites

Answer 22

Interglobular dentin

Question 23

Looping of terminal tubules

Answer 23

Granular layer of tomes

Question 24

Movement of dentinal fluid in tubules irritates odontoblastic process by sending pain signals to the brain

Answer 24

Hydrodynamic theory of brannstrom

Question 25

Single layer of odontolasts lining pulp chamber

Answer 25

Odontoblastic zone

Question 26

Devoid of cells and contains raschkow plexus

Answer 26

Cell free zone of weil

Question 27

This zone contains fibroblast

Answer 27

Cell rich zone

Question 28

Principal cells of pulp, immunocompetent cells, major vessels and nerve

Answer 28

Pulp core

Question 29

Cells of cementum

Answer 29

Cenetoblasts and cementcytes

Question 30

Cementum matrix:

Answer 30

Sharpeys fibers atachment Ground substance

Question 31

Classification of cementum: No cells and no fibers

Answer 31

Acellular afribillar

Question 32

Classification of cementum: ANCHORAGE No cells but has sharpeys fibers

Answer 32

Acellular extrinsic fiber

Question 33

Classification of cementum: With cell and both intrinsic and extrinsic Present in apical third With lacunae

Answer 33

Cellular mixed fibers

Question 34

Classification of cementum: Forms bulk of secondary cementum

Answer 34

Cellular mixed fibers

Question 35

Classification of cementum: With cells and intrinsic fibers

Answer 35

Cellular intrinsic fiber

Question 36

Classification of cementum: FOR REPAIR

Answer 36

Cellular intrinsic fiber

Question 37

Classification of cementum: First layer, seals the tubules

Answer 37

Intermediate cementum

Question 38

Connective tissue fiber: Attached to cementum below CEJ

Answer 38

Alveolar crest

Question 39

Connective tissue fiber: Resistance lateral force

Answer 39

Horizontal

Question 40

Connective tissue fiber: Most numerous and main resistance

Answer 40

Oblique

Question 41

Connective tissue fiber: Resist vertical/tipping force

Answer 41

Apical

Question 42

Connective tissue fiber: Between multi-rooted/bifurcated

Answer 42

Interradicular

Question 43

Connective tissue fiber: Attachment of adjacent tooth Post ortho relapse

Answer 43

Transseptal

Question 44

Connective tissue fiber: Elastic like fibers

Answer 44

Oxytalan fibers

Question 45

Processus alveolaris

Answer 45

Maxilla

Question 46

Pars alveolaris

Answer 46

Mandible

Question 47

Gingival fiber group: Most numerous

Answer 47

Dentogingival

Question 48

Gingival fiber group: Alveolar crest to CT

Answer 48

Alveologingival

Question 49

Gingival fiber group: Cementum to alveolar bone

Answer 49

Dentoperiosteal

Question 50

Gingival fiber group: Prevent rotational forces

Answer 50

Circumferential