Histological Slides

Primary Epithelial Band

A - oral epithelium

B - primary epithelial band

INVAGINATION OF

PRIMARY EPITHELIAL BAND

A - primary band

arrow bifurcation of primary epithelial band

DENTAL AND

VESTIBULAR

LAMINAE

A - primary epithelial band

B - dental lamina

CONTINUED GROWTH OF DENTAL LAMINA

A - dental lamina

B - vestibular lamina

DEVELOPMENT OF

THE DENTAL

ORGAN

A - dental lamina

B - dental organ

C - mesenchymal cells

D - alveolar bone socket

MANDIBULAR TOOTH DEVELOPMENT

A - mandibular dental organ

B - mesenchymal cells

C - mandibular vestibularlamina

D - alveolar process

E - maxillary dental organ

F - maxillary vestibularlamina

CAP STAGE OF

MORPHODIFFERENTIATIO N

A - dental lamina

B - inner dental epithelium

C - outer dental epithelium

D - stellate reticulum

E - cervical loop

F - mesenchymal cells

G - dental follicle/sac

HIGH POWER OF

CAP STAGE

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

DEVELOPMENT OF

THE ENAMEL NICHE

A - dental lamina

B - vestibular lamina

C - lip furrow

D - enamel niche

HIGH POWER OF

ENAMEL NICHE

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

BELL STAGE OF MORPHOGENESIS

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

BELL STAGE OF IDE AT CUSP OF TOOTH

A - dental papilla

B - inner dental epithelialcells

C - outer dental epithelium

D - stellate reticulum

E - stratum intermedium

F - odontoblasts

SECRETION OF PREDENTIN

A - odontoblasts

B - dental papillae

C - predentin

D - inner dental epithelium

E - outer dental epithelium

F - stellate reticulum

G - stratum intermedium

INITIATION OF ENAMEL

SECRETION

A - disintegrating dentallamina

B - enamel

C - stellate reticulum

D - cervical loop

E - dental papilla

ENAMEL FORMATION CONTINUES

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

ENAMEL SECRETION - HIGH POWER

A - stellate reticulum

B - stratum intermedium

C - inner dental epithelium

D - dentin

E - odontoblasts

F - dental papilla

G - preodontoblasts

H - ameloblasts

DEVELOPING

DENTINOENAME L JUNCTION

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

DEVELOPING CUSP OF A TOOTH

A - dental pulp

B - dentin

C - enamel

D - ameloblasts

E - stratum intermedium/ODE

F - capillaries

G - artifactual space

H - alveolar bone socket

DEVELOPING CUSP OF

AN INCISOR

A - pulp

B - odontoblasts

C - dentin

D - enamel

E - ameloblasts

F - condensed ODE and sraumintermedium

G - alveolar bone

DISINTEGRATING DENTAL LAMINA

A - disintegrating dentallamina

B - enamel

C - oral epithelium

D - dentin

E - ameloblasts

F - condensed ODE and sraumintermedium

G - early reduced enamelepithelium

H - dentinoenamel junction

EPITHELIAL PEARLS

A - epithelial (Serre's) pearl

PRIMORDIA OF

SUCCESSIONAL TEETH

A - primordium of ueionaltooth

B - bell stage developmentof deciduous tooth

C - dental lamina of ueionaltooth

DENTAL LAMINA OF SUCCESSIONAL TEETH

A - dental lamina of permatetooth

B - cervical loop

C - epithelial diaphragm

D - stellate reticulum

E - dentin

F - enamel

SECTION THROUGH THE MAXILLARY PROCESS

A - canine tooth

B - first molar

C - second molar

D - first permanent molar

E - dental lamina of 1st permanent molar

F - shelf-like dental lmin

G - extension of dental lamina

REDUCED ENAMEL

EPITHELIUM

A - enamel space

B - reduced enamel lpthum

C - dentin

D - dental pulp

E - alveolar bone

HIGH POWER OF REDUCED ENAMEL EPITHELIUM

A - reduced enamel lpthum

B - debris in enamel space

C - dentin

TOOTH

ERUPTION

A - epithelial diaphragm

B - fusion of oral andreduced enamel epithelium

EPITHELIAL FUSION AT ERUPTION

A - oral epithelium

B - reduced enamel lpthum

C - fusion of the epithelia

D - enamel

E - dentin

F - odontoblasts

G - dental pulp

HIGH POWER OF TOOTH CUSP AT ERUPTION

A - pulp

B - odontoblasts

C - dentin

D - enamel space

E - dentinoenamel junction

F - protective ameloblastlayer

G - reduced enamel lpthum

H - oral epithelium

* - fusion ofepithelial membranes at

eruption

INITIATION OF ROOT FORMATION

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

THE CERVICAL LOOP

A - cervical loop

B - epithelial root seat

C - odontoblasts

D - dentin

E - dental pulp

F - alveolar bone

THE EPITHELIAL ROOT SHEATH

A - pulp

B - odontoblasts

C - inner dental epithelium

D - stellate reticulum

E - outer dental epithelium

FORMATION OF THE EPITHELIAL DIAPHRAGM

A - root of tooth

B - dentin

C - predentin

D - epithelial diaphragm

E - outer dental epithelium

F - epithelial rests

G - odontoblasts

ROOTS OF A

MANDIBULAR MOLAR

A - epithelial diaphragm

B - apical foramen

C - dentin of root

D - epithelial root sheath

E - pulp cavity

THE DENTAL

PAPILLA

A - mesenchymal cell

B - fibroblast C - capillary

RADICULAR PULP

A - pulp (radicular)

B - odontoblasts

C - dentin

D - epithelial root sheath

E - predentin

CORONAL PULP

A - odontoblasts

B - pulp (coronal)

C - predentin

D - dentin

ZONES OF THE PULP

1 - odontoblast zone 2 - cell-free zone

3 - cell-rich zone

4 - pulp core

A- Dentin

B- nerve

C- blood vessel

PERIPHERAL PULP REGION

A - odontoblast layer

B - cell-free zone C - cell-rich zone

D - nerve pleus

E - capillary

F - dentin

FALSE PULP STONE

A - pulp

B - dentin

C - false pulp stone

TRUE PULP STONE

A - true pulp stone B - dentinal tubules

CENTRAL PULP

CAVITY

A - blood vessels

B - nerve fibers C - nerve trunk

DEVELOPING ODONTOBLASTS

A - odontoblasts

B - mesenchymal cells ofpulp

C - preodontoblasts

D - predentin

E - inner dental epithelium

F - preameloblasts

G - stratum intermedium

H - stellate reticulum

KORFF'S FIBERS

A - pulp

B - ameloblasts C - enamel

D - artifactual space

E - dentin

F - reticular fibers

G - odontoblasts

H - D-E junction

DENTIN

SECRETION

A - pulp

B - odontoblasts

C - predentin

D - dentin

E - enamel

F - dentinal tubule

MANTLE DENTIN

A - enamel

B - D-E junction

C - mantle dentin

D - circumpulpal dentin

E - predentin

ODONTOBLAST PROCESS

BRANCHING

A - branching of dnblasicprocesses

B - D-E junction

C - dentin

D - odontoblast processes

E - enamel

BRANCHING OF

ODONTOBLAST PROCESSES

A - branching of odontoblastprocesses

B - mantle dentin

C - enamel

D - lateral extensions ofdentinal tubules

ENAMEL SPINDLES

A - D-E junction

B - enamel spindles C - dentin

D - dentinal tubules

DENTINAL TUBULES

A - dentinal tubules

B - intertubular dentin

C - odontoblast processes

TUBULE DENSITY NEAR THE PULP

A - dentinal tubules

B - intertubular dentin C - this one does

D - crowding of odontoblasts

DENTINAL TUBULES

IN CROSS-

SECTION

A - dentinal tubules B - intertubular dentin

CROSS-SECTIONED

DENTINAL TUBULES AT MID DENTIN REGION

A - dentinal tubules

B - intertubular dentin

C - peritubular dentin

D - odontoblast process

CROSS-SECTIONED

DENTINAL TUBULES NEAR THE PULP

A - dentinal tubules

B - peritubular dentin C - intertubular dentin

D - odontoblast processes

DEMINERALIZED

CROSS SECTION OF

DENTINAL TUBULES

A - intertubular dentin B - predentin

DENTINAL TUBULES IN

LONGITUDINAL SECTION

A - odontoblast processes

B - peritubular dentin C - intertubular dentin

CURVATURE OF

DENTINAL

TUBULES

A - primary curvature ofthe dentinal tubules

CHANGES IN THE PRIMARY

CUVATURE

A - dentinal tubules in thecrown B - dentinal tubules in the root

DENTINAL TUBULES IN THE ROOT

A - dentinal tubules in trdentin

CROSS SECTION THROUGH CERVIX OF TOOTH

A - inner/outer loops ofdentinal tubules B- dentinal tubules cutobliquely

SECONDARY

CURVATURE OF

DENTINAL TUBULES

A - secondary curvatures

B - odontoblast process C - intertubular dentin

INCREMENTAL LINES

IN DENTIN

A - incremental lines ofvon Ebner

DEMINERALISED

INCREMENTAL

LINES

A - incremental lines ofvon Ebner

B - mantle dentin

C - spherule-like paernof dentin mineralization

DENTIN MINERALIZATION

A - dentin mineralizationfront

B - dentin

C - predentin

D - odontoblasts

E - pulp

GLOBULAR DENTIN

A - globular dentin

B - interglobular dentin C - dentinal tubules

MINERALIZATION OF DENTIN

A - interglobular dentin

B - globular dentin

C - dentinal tubules

DENTIN

MINERALIZATIO N FRONT

A - odontoblasts

B - predentin

C - dentin

D - mineralized globulardentin

E - dentinal tubules

PULP-DENTIN INTERFACE

A - odontoblasts

B - odontoblast processes

C - predentin

INTERGLOBULAR DENTIN

A - interglobular dentin

B - dentinal tubules C - D-E junction

D - mantle dentin

HIGH POWER OF

INTERGLOBULAR

DENTIN

A - interglobular dentin

B - dentinal tubule

TOMES' GRANULAR LAYER OF DENTIN

A -Tomes' granular layer

B - cementum

C - contour lines of Owen

D - dentin

TOMES' GRANULAR

LAYER & INTERGLOBULAR DENTIN

A -Tomes' granular layer B - interglobular dentin

SECONDARY DENTIN

A - pulp

B - primary dentin

C - secondary dentin

REGULAR

SECONDARY DENTIN

A - primary dentin

B - secondary dentin

C - predentin

D - odontoblasts

HYPERACTIVE

SECONDARY DENTIN FORMATION

A - enamel (missing)

B - secondary dentin

C - primary dentin

D - pulp

DEAD TRACTS

A - enamel

B - dead tracts of dentin C - secondary dentin

DEAD TRACTS OF

DENTIN

A - dead tracts

B - interlobular dentin

C - primary curvatures

SCLEROTIC DENTIN

A - carious dentin

B - sclerotic dentin

C - dead tracts

D - secondary dentin

E - dentin

F - enamel

G - pulp

SCLEROTIC DENTIN

IN TRANSMITTED LIGHT

A - carious dentin

B - sclerotic dentin

C - dead tracts

D - secondary dentin

E - enamel

DIFFERENTIAL DENTIN DIAGNOSIS

A - carious dentin

B - sclerotic dentin

C - primary dentin

D - regular secondary tide

E - pulp

F - enamel defect

G - irregular (reactive) secondary dentin

H - irregular (reactive) secondary dentin

DENTIN

RESORPTION

A - dentinoclasts

B - dentin C - pulp

DENTINOCLAST S

A - dentinoclasts B - dentinal tubule

ENAMEL SECRETION

A - ameloblasts

B - enamel

C - condensed epitheliallayer

D - capillaries

E - terminal bars

F -Tomes' processes

G - dentin

H - D-E junction

TOMES'

PROCESSES

A - immature enamel B -Tomes' processes

TERMINATION OF ENAMEL

SECRETION

A - ameloblasts

B - enamel - enamel

C - condensed epithelialcells

D - capillaries

MATURATION OF ENAMEL

A - ameloblasts

B - enamel

C - maturative surface ofenamel

D - D-E junction

E - dentin

GNARLED ENAMEL

A - D-E junction

B - gnarled enamel

C - dentin

LINES OF RETZIUS

A - dentin

B - D-E junction

C - lines of Retzius

D - mantle dentin

INCREMENTAL LINES IN ENAMEL

A - line of Retzius

B - D-E junction

C - interglobular dentin

D - dentin

PERIKYMAT A

A - perikymata

CROSS-SECTION THROUGH CROWN OF TOOTH

A - lines of Retzius

HUNTER-SCHREGER BANDS

A - Hunter-Schreger bands

B - D-E junction

C - dead tracts of dentin

ENAMEL SPINDLES AT

THE DEJ

A - dentin

B - enamel

C - odontoblast processes

D - D-E junction

E - enamel spindles

ENAMEL TUFTS

A - dentin

B - enamel

C - enamel spindles

D - D-E junction E - enamel tufts

F - interglobular dentin

G - mantle dentin

ENAMEL LAMELLAE

A - D-E junction

B - enamel lamella

C - dentin

HUMAN ENAMEL RODS

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

CORONAL

SECTION

THROUGH Enamel

A - enamel rods in r-section B - enamel rods cut yogtuda

ENAMEL ROD FORMATION

A - ameloblasts

B -Tomes' process

C - enamel rod

D - dentin

E - mantle dentin

DEJ

MORPHOLOGY

A - D-E junction

B - enamel

C - dentin

D - dentinal tubules

DEJ INTERFACE

A - lines of Retzius

B - D-E junction

C - dentinal tbles/dntoblastprocesses

D - mantle dentin