Oral Histology Lab Final

Front 1

Back 1

Top: Articular eminence
Left: Articular disk
Right: Synovial cavities
Bottom: Condyle

Front 2

Back 2

Articular disk
Articular eminence
ligaments
bone

Front 3

Back 3

Fibrous Capsule
Temporomandibular ligament (lateral ligament)

Front 4

Back 4

Sphenomandibular ligament (anterior)

Stylomandibular ligament (posterior)

Front 5

Back 5

A-PDL

Front 6

Back 6

A. base of the skull
B. superior synovial cavity
C. articular disc
D. inferior synovial cavity
E. head of mandible
F. posterior part of disk

Front 7

Back 7

A - thick CT capsule
B - base of the skull
C - superior synovial cavity
D -(intra) articular disc E - inferior synovial cavity
F - head of mandible
G - vascular portion of the retrodiscal pad

Front 8

Back 8

A - base of the skull
B - superior synovial cavity
C - articular disc
D - inferior synovial cavity
E - spongy bone of condyle
F - articular layer of condyle
G - proliferative layer
H - hyaline cartilage

Front 9

Back 9

A - dense fibrous CT
B - proliferative layer
C – hyaline cartilage
** - synovial cavity

Front 10

Back 10

A - vascular retrodiscal pad/tissue
B - superior synovial cavity
C - inferior synovial cavity
D - synovial villi
E - base of skull
F - mandibular condyle

Front 11

Back 11

A - synovial cavity
B - macrophage-like (type I) cells
C - synovial membrane

Front 12

Back 12

A - macrophage-like type I (light) cells
B - fibroblast-like type II (dark) cells
C - synovial cavity

Front 13

Back 13

A – rough endoplasmic reticulum

Front 14

Back 14

A - synovial villi
B – mucopolysaccharide staining

Front 15

Back 15

Front 16

Back 16

Front 17

Back 17

Optic placode
Nasal septum
Palatal shelves
Tongue
Tooth buds
maxillary bone

Front 18

Back 18

Same stuff

Front 19

Back 19

Front 20

Back 20

Front 21

Back 21

Front 22

Back 22

A - odontoblasts
B - mesenchymal cells of pulp
C - preodontoblasts
D - predentin E - inner dental epithelium
F - preameloblasts
G - stratum intermedium
H - stellate reticulum

Front 23

Back 23

A - pulp
B - ameloblasts
C - enamel
D - artifactual space
E - dentin
F - reticular fibers
G - odontoblasts
H - D-E junction

Front 24

Back 24

A - pulp
B - odontoblasts
C - predentin
D - dentin
E - DEJ (dentinoenamel junction)
F - enamel
G - odontoblast process

Front 25

Back 25

A - empty branched portions of the dentinal tubule
B - D-E junction
C - dentin
D - empty dentinal tubules
E - enamel

Front 26

Back 26

A - branching of odontoblast processes
B - mantle dentin
C - enamel
D - lateral extensions of dentinal tubules

Front 27

Back 27

A - dentinal tubules
B - intertubular dentin
C - odontoblast processes

Front 28

Which has greatest density?

Back 28

A - dentinal tubules
B - intertubular dentin
C - this one does
D - crowding of odontoblasts

Front 29

Cross-Sectioned Dentinal Tubules at Mid Dentin Region

Back 29

A - dentinal tubules
B - intertubular dentin C - peritubular dentin
D - odontoblast process

Front 30

Cross-Sectioned Dentinal Tubules Near the Pulp

Back 30

A - dentinal tubules
B - peritubular dentin C - intertubular dentin
D - odontoblast processes

Front 31

Back 31

A - primary curvature of the dentinal tubules

Front 32

Back 32

A - secondary curvatures
B - odontoblast process C - intertubular dentin

Front 33

Back 33

A - incremental lines of von Ebner

Dentinal tubules cross the field from left to right. Fine lines (A) run almost perpendicular to the dentinal tubules from top to bottom on the screen. Note that these lines occur at regular increments. These are the incremental lines of von Ebner. This is a ground section, but these lines can also be seen in demineralized sections. The lines of von Ebner represent cyclic activity of the odontoblasts during dentin formation. These incremental lines illustrate the daily pattern of dentin deposition that progresses at about 6 µm per day in the crown and about 3.5 µm per day in the root.

Front 34

Back 34

A - interglobular dentin
B - globular dentin C - dentinal tubules

Front 35

Back 35

A - odontoblasts
B - odontoblast processes
C - predentin

Front 36

Back 36

A - interglobular dentin
B - dentinal tubules
C - D-E junction
D - mantle dentin

Front 37

Back 37

A - Tomes' granular layer
B - cementum C - contour lines of Owen
D - dentin

In the root, a layer of dark granules lie parallel to the outer surface of the dentin. This is called Tomes' granular layer

Front 38

Back 38

A - Tomes' granular layer B - interglobular dentin

Front 39

Back 39

A - primary dentin
B - secondary dentin C - predentin
D - odontoblasts

Front 40

Back 40

A - enamel
B - dead tracts of dentin C - secondary dentin

Front 41

Sclerotic Dentin

Back 41

A - carious dentin
B - sclerotic dentin
C - dead tracts
D - secondary, reactive dentin E - dentin
F - enamel
G - pulp

Front 42

Differential Dentin Diagnosis

Back 42

A - carious dentin
B - sclerotic dentin
C - primary dentin
D - regular secondary dentin
E - pulp
F - enamel defect
G - (reactive) secondary dentin

Front 43

Theories of dentin sensitivity name 3.

Back 43

1. Direct innervations theory
2. Transduction theory
3. Hydro-dynamic theory

Front 44

Dentin Resorption

Back 44

A - dentinoclasts
B - dentin
C - pulp

Front 45

Formation of Cementum

Back 45

A - dentin
B - epithelial rests
C - cementoblasts D - cementum
E - resting lines
F - periodontal region

Front 46

Back 46

A - epithelial rests
B - cementoblasts
C - cementum
D - cementoid
E - periodontal region
F - dentin
G - osteocytes
H - osteoblasts
J - alveolar bone
K - primary cementum
L - it is acellular

Front 47

Back 47

A - periodontal region
B - epithelial rests
C - primary cementum
D - dentin
E - Sharpey's fibers
F - principal fibers

Front 48

Back 48

A - primary cementum
B - dentin
C - resting line
D - periodontal region
E - principal fiber bundle (collagen)
F - Sharpey's fibers

Front 49

Back 49

A - cementum
B - principal fibers of PDL
C - Sharpey's fibers
D - dentin

Front 50

Back 50

A - dentin
B - interglobular dentin
C - cementum D - lacunae
E - secondary cementum
F - primary cementum

Front 51

Back 51

A - dentin
B - Tomes' granular layer
C - secondary cementum D - primary cementum
E - canaliculi
F - cementocyte lacuna

Front 52

Back 52

A - secondary cementum
B - primary cementum
C - resting lines
D - Sharpey's fibers E - Tomes' granular layer
F - dentin
G - cementocyte lacunae

Front 53

Back 53

A - dentin
B - Tomes' granular layer
C - secondary cementum
D - primary cementum
E - to the left

Front 54

Back 54

A - dentin
B - primary cementum
C - secondary cementum

Front 55

Back 55

A - cementum
B - enamel margin
C - dentin

Front 56

Back 56

A - mesenchymal cell
B - fibroblast
C - capillary

Front 57

Back 57

A - pulp (radicular)
B - odontoblasts
C - dentin
D - epithelial root sheath
E - predentin

Front 58

Back 58

A - odontoblasts
B - pulp (coronal)
C - predentin
D - dentin

Front 59

Back 59

1 - odontoblast zone
2 - cell-free zone
3 - cell-rich zone
4 - pulp core
A - dentin
B - nerve
C - blood vessel

Front 60

Back 60

"When I post an image you better look at it!"

Front 61

Back 61

A - odontoblast layer
B - cell-free zone
C - cell-rich zone
D - subodontoblastic nerve plexus
E - capillary
F - dentin

Front 62

Back 62

A - pulp
B - dentin
C - false pulp stone

True pulp stones appear to be composed of dentin in that they exhibit dentinal tubules. False pulp stones do not appear to be produced by odontoblasts and are thought to originate from a mineralized nucleus in the pulp and grow appositionally.

Front 63

Back 63

A - true pulp stone B - dentinal tubules

True denticles have
tubules but false stones
do not

Front 64

Back 64

A - blood vessels
B - nerve fibers
C - nerve bundle

Front 65

Back 65

A - dental arch
B - gingival groove

Front 66

Back 66

A - oral epithelium
B - primary epithelial band

Front 67

Back 67

A - primary epithelial band arrow - bifurcation of primary
epithelial band

Front 68

Back 68

A - primary epithelial band
B - dental lamina C - vestibular lamina

Front 69

Back 69

A - dental lamina
B - vestibular lamina

Front 70

Back 70

Legend
A - dental lamina
B - dental organ
C - ectomesenchymal cells
D - alveolar bone socket

Front 71

Back 71

A - mandibular dental organ
B - ectomesenchymal cells
C - mandibular vestibular lamina
D - alveolar process
E - maxillary dental organ
F - maxillary vestibular lamina

Front 72

Back 72

A - dental lamina
B - inner dental epithelium
C - outer dental epithelium
D - stellate reticulum
E - cervical loop
F - ectomesenchymal cells
G - dental follicle/sac

Front 73

Back 73

Legend
A - inner dental epithelium
B - dental papilla
C - enamel knot
D - outer dental epithelium
E - stellate reticulum
F - dental lamina
G - dental sac/follicle
H - cervical loop

Front 74

Back 74

A - dental lamina
B - vestibular lamina
C - lip furrow
D - enamel niche

Front 75

Back 75

A - enamel niche
B - dental lamina
C - lingual wall of niche
D - buccal wall of niche
E - floor of the niche
F - oral epithelium
G - cervical loop
H - stellate reticulum
I - dental papilla
J - outer dental epithelium
K - inner dental epithelium

Front 76

Back 76

A - cervical loop
B - stellate reticulum
C - enamel septum
D - inner dental epithelium
E - stratum intermedium
F - dental lamina
G - outer dental epithelium
H - dental papilla

Front 77

Back 77

A - dental papilla
B - inner dental epithelial cells
C - outer dental epithelium
D - stellate reticulum
E - stratum intermedium
F - odontoblasts

Front 78

Back 78

A - odontoblasts
B - dental papillae
C - predentin
D - inner dental epithelium
E - outer dental epithelium
F - stellate reticulum
G - stratum intermedium

Front 79

Back 79

Legend
A - disintegrating dental lamina
B - enamel
C - stellate reticulum
D - cervical loop
E - dental papilla

Front 80

Back 80

A - enamel
B - dentin
C - alveolar bone socket
D - dental septum
E - stellate reticulum
F - cervical loop
G - outer dental epithelium
H - inner dental epithelium

Front 81

Back 81

A - stellate reticulum
B - stratum intermedium
C - inner dental epithelium
D - dentin
E - odontoblasts
F - dental papilla
G - preodontoblasts
H - ameloblasts

Front 82

Back 82

A - enamel
B - dentin
C - ameloblasts
D - stratum intermedium
E - stellate reticulum
F - outer dental epithelium
G - capillaries
H - odontoblasts
I - dental pulp
* - dentinoenamel junction

Front 83

Back 83

A - dental pulp
B - dentin
C - enamel
D - ameloblasts
E - stratum intermedium/ODE
F - capillaries
G - artifactual space
H - alveolar bone socket

Front 84

Back 84

A - pulp
B - odontoblasts
C - dentin
D - enamel
E - ameloblasts
F - condensed ODE and stratum intermedium
G - alveolar bone

Front 85

Back 85

A - disintegrating dental lamina
B - enamel
C - oral epithelium
D - dentin
E - ameloblasts F - condensed ODE and stratum intermedium
G - early reduced enamel epithelium
H - dentinoenamel junction

Front 86

Back 86

A - epithelial (Serre's) pearl

Front 87

Back 87

A - primordium of successional tooth
B - bell stage development of deciduous tooth
C - dental lamina of successional tooth

Front 88

Back 88

A - dental lamina of permanent tooth
B - cervical loop
C - epithelial diaphragm
D - stellate reticulum
E - dentin
F - enamel

Front 89

Back 89

A - canine tooth
B - first molar
C - second molar
D - first permanent molar
E - dental lamina of 1st permanent molar
F - shelf-like dental lamina
G - extension of dental lamina

Front 90

Back 90

A - enamel space
B - reduced enamel epithelium
C - dentin
D - dental pulp
E - alveolar bone

Front 91

Back 91

A - reduced enamel epithelium
B - debris in enamel space
C - dentin

Front 92

Back 92

A - epithelial diaphragm
B - fusion of oral and reduced enamel epithelium

Front 93

Back 93

A - oral epithelium
B - reduced enamel epithelium
C - fusion of the epithelia
D - enamel
E - dentin
F - odontoblasts
G - dental pulp

Front 94

Back 94

A - pulp
B - odontoblasts
C - dentin
D - enamel space
E - dentinoenamel junction F - protective ameloblast layer
G - reduced enamel epithelium
H - oral epithelium
* - fusion of epithelial
membranes at eruption

Front 95

Back 95

A - crown of tooth
B - root of tooth
C - enamel space
D - ameloblasts
E - dentin
F - odontoblasts
G - epithelial diaphragm
1 - morphogenic region
2 - organizing region
3 - secretory region

Front 96

Back 96

A - cervical loop
B - epithelial root sheath
C - odontoblasts
D - dentin
E - dental pulp
F - alveolar bone

Front 97

Back 97

A - pulp
B - odontoblasts
C - inner dental epithelium
D - stellate reticulum
E - outer dental epithelium

Front 98

Back 98

A - root of tooth
B - dentin
C - predentin
D - epithelial diaphragm
E - outer dental epithelium
F - epithelial rests
G - odontoblasts

Front 99

Back 99

A - epithelial diaphragm
B - apical foramen
C - dentin of root
D - epithelial root sheath
E - pulp cavity

Front 100

Back 100

A - ameloblasts
B - enamel
C - condensed epithelial layer
D - capillaries E - terminal bars
F - Tomes' processes
G - dentin
H - D-E junction

Front 101

Back 101

A - immature enamel B - Tomes' processes

Front 102

Back 102

A - ameloblasts
B - enamel C - condensed epithelial layer
D - capillaries

Front 103

Back 103

A - ameloblasts
B - enamel
C - maturative surface of enamel D - D-E junction
E - dentin
F - reduced enamel epithelium

Front 104

Back 104

Cross Striations

(6/33)

Front 105

Back 105

A - D-E junction
B - groups of enamel rods
C - dentin

Front 106

Back 106

A - dentin
B - D-E junction
C - lines of Retzius
D - mantle dentin

Front 107

Back 107

A - lines of Retzius
B - D-E junction
C - lines of von Ebner

Front 108

Back 108

A - line of Retzius
B - D-E junction
C - interglobular dentin
D - dentin

Front 109

Back 109

A - perikymata

Front 110

Back 110

A - hypoplastic enamel

Front 111

Back 111

A - lines of Retzius

Front 112

Back 112

A - Hunter-Schreger bands
B - D-E junction
C - dead tracts of dentin

Front 113

Back 113

A - Hunter-Schreger bands
B - D-E junction
C - dentin
D - dead tracts of dentin

Front 114

Back 114

A - enamel rods
B - D-E junction
C - dentin
D - pulp
E - enamel lamellae

Front 115

Back 115

A - dentin
B - enamel
C - odontoblast processes
D - D-E junction
E - enamel spindles

Front 116

Back 116

A - enamel spindle
B - enamel
C - dentin
D - D-E junction
E - lines of Retzius

Front 117

Back 117

A - dentin
B - enamel
C - enamel spindles
D - D-E junction
E - enamel tufts
F - interglobular dentin
G - mantle dentin

Front 118

Back 118

A - enamel tuft
B - enamel spindle
C - D-E junction
D - mantle dentin
E - interglobular dentin
F - enamel
G - dentin
H - enamel spindles

Front 119

Back 119

A - D-E junction
B - enamel lamella
C - dentin

Front 120

Back 120

A - Hunter-Schreger bands
B - lines of Retzius
C - dentin
D - enamel spindle
E - D-E junction
F - enamel

Front 121

Back 121

A - head of enamel rod
B - tail of enamel rod

Front 122

Back 122

A - enamel rods in cross-section
B - enamel rods cut longitudinally

Front 123

Back 123

A - etched enamel rods
B - etched enamel rods
C - non-etched enamel rods

Front 124

Back 124

A - ameloblasts
B - Tomes' process
C - enamel rod
D - dentin
E - mantle dentin

Front 125

Back 125

A - enamel
B - dentin
C - rotted roots of premolar

Front 126

Back 126

A - D-E junction
B - enamel
C - dentin
D - dentinal tubules

Front 127

Back 127

A - lines of Retzius
B - D-E junction
C - dentinal tubules/odontoblast processes
D - mantle dentin