مراجعة عملى هيستولوجى سنه ثانيه جديد معدل
TRANSCRIPT
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Bud stage
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Cap stage
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Stellate reticulum
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Outer dental epithelium
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Inner dental epithelium
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Dental papilla
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Dental sac
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Enamel cord
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Early bell stage
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Early bell stage
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Early Bell stage
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Dental papilla
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Lateral dental lamina
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Cervical loop
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Stellate reticulium
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Dental papilla
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Primordium of permanent tooth
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Dental sac
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Advanced Bell Stage
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Stratum intermedium
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Ameloblasts
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Predentin
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Outer dental epithelium
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Stratum intermedium
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Dental papilla
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Advanced Bell Stage
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Stratum intermedium
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Enamel matrix
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Dentin
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Predentin
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Odontoblasts
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Enamel matrix
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Ameloblast
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Stratum intermedium
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Enamel matrix
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Dentin
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Outer enamel epithelium
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Reduced enamel epithelium
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Dentine
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Developing pulp
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Enamel matrix
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Enamel matrix
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Predentin
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Odontoblast
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Epithelial Diaphragm
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Epithelial Diaphragm
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Ameloblasts
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Cervical loop
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Epithelial diaphragm
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PredentinDentin
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Predentin
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PredentinGlobular mineralization of dentin
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Odontoblasts
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Odontoblasts
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Enamel spindle
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Enamel lamella
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Hunter-Schreger Bands
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Incremental lines of Retzius
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DEJ
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Dentinal tubules
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Incremental Lines of Retzius
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Enamel tuft
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Pulp in situ
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Dentin
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Cementum
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Periodontal ligamet
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Enamel lamella
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Enamel spindle
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Dentinal tubule
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Neonatal line
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Interglobular dentin space
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Interglobular dentin space
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Dentino-enamel junction
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Incremental lines of von Ebner
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Secondary dentin
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Sclerotic dentin
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Dead tract
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Reparative dentin
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Secondary dentin
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Tomes granular layer
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Dentinal tubules
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Cellular cementum
Acellular cementum
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Acellular cementum
Tomes granular layer
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Acellular cementum
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Cellular cementum
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Cellular Cementum
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Lacuna of cementocyte
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Lacunae &canaliculi of cementocytes
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Incremental lines of Salter
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L.S ground section showing:ATLASA- cementum overlaps enamel 60%B- cementum meets enamel 30%C- no junction(gap junction) 10%
62.psd
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Attached cementicle
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Hypercementosis
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DPre DOdontoblastsCell Free ZoneCell Rich ZoneCore
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Diffuse pulp calcification
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True denticle
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Pulp stone
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Osteoblast
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Osteoclasts
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Howships lacuna
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ERM
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ERM
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ERM
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The remnants of the epithelial root sheath of Hertwig migrate toward the dental sac and become the epithelial rests of Malassez found in the periodontal ligament of the fully developed tooth. A-Epithelial rests of MalassezB-cementum
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Epithelial rests of Malassez
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Oblique fibersMalassez restAlveolar bone Dentin
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Alveolar crest group
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Horizontal fibers
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Gingival ligament
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Alveolar crest (group) fibers
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Alveolar process
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Bundle bone
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Acellular cementum
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Interstitial tissue space
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Transeptal Fibers
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Oblique fibers
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Interradicular fibers
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Horizontal fibers
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Apical fibers
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Oblique fibers
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Horizontal fibers
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Alveolar process
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Alveolar process
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66.bin
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Bundle bone
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Bundle bone
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Bundle bone
67.bin
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Bundle bone
68.bin
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Interstitial tissue space
Bundle bone
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Compact bone
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Haversian system
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Haversian canalHaversian system
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Haversian canal
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Volkmans canal
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Interstitial lamellae
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Bone lamellaLacuna of osteocyte
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Haversian canal
Osteocyte
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Compact bone
69.bin
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Osteocyte osteoblast
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Spongy bone
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70.bin
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Fiboblasts
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Stratified Squamous Keratinized Epithelium
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Stratified Squamous Keratinized Epithelium
Keratin layer
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Stratified Squamous Keratinized Epithelium
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Stratified squamous non keratinized epithelium
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Gingiva
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Gingiva
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Gingiva
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Gingiva
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Vermilion borderLining mucosaSkin side
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Skin side of the lip
Sebaceous gland
Hair follicleStratum cornium
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Vermilion border
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Vermilion border
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Masticatory mucosa of the hard palate
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Hard palate
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Mucous acini
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Lining mucosa of lip
Labial glandOrbicularis oris muscle
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Lining mucosa of cheek
Buccal gland
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Soft palate
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Lining mucosa
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Lining mucosa
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Labial mucosaOral vestibule
Free gingivaGingival sulcusSulcular epitheliumEnamel spaceAttachment epithelium
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Free gingivaGingival sulcus & enamel spaceFree gingival groove
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Junctional epithelium
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Cementum
Junctioal epithelium on cementum
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Junctional epithelium on cementum
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Attached epithelium
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Attached epithelium
Epithelial diaphragm
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Interdental septum
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Filiform papillae
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Filliform papilla
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Filiform papilla
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Fungiform papilla
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Fungiform papilla
Taste buds
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Filiform papillaFungiform papilla
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Fungiform papilla
Tate bud
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Fungiform papilla
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Fungiform papilla
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Circumvallate papilla
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Circumvallate papilla
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Circumvallate papilla
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Foliate papilla
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Taste bud
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Taste bud
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Taste bud
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Taste bud
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Taste pore
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Taste bud
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Taste buds
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von Ebner S. G.
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Serous acini Serous salivary glandIntercalated duct
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Intercalated ducts
Zymogen granulesSerous salivary gland
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Mixed salivary gland
Mucous acinus
Serous acinus
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Mucous acinusSerous acinusZymogen granulesMixed salivary gland
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Mucous acinus
Serous acinusMixed salivary gland
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Mixed salivary gland
Serous demilune of vonEbner
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Serous salivary gland
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Buccal salivary gland (mixed)
Mucous aciniSerous acini
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Striated muscle fibersSerous acinusMucous acinus
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Mixed salivary gland predominantly serous (submandibular gland)
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Intercalated ductSerous acinusMucous cellsMixed salivary gland
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Mucous terminal portionIntercalated duct
Serous acinusStriated ductMixed salivary gland
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Intercalated ductStriated ductsMixed salivary gland (major sublingual )Serous acinusMixed terminal portion
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Serous demilunesSerous acinus
Mixed acinusMixed salivary gland
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Intercalated ductAdipose tissueSerous gland
Striated duct
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Mucous acinusIntercalated ductMixed salivary gland ( Submandibular)
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Large inter-lobar excretory duct
C.T. stromaMixed salivary gland
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Excretory ductGoblet cell
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Striated ductSerous salivary gland
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Striated ductsMucous aciniSerous acini
Mixed salivary gland
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Striated ducts
Interalated ductMixed salivary gland
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Mucous acinus
Intercalated duct
Striated ductMixed salivary gland(submandibular gland)
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Striated ductMixed salivary gland
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Parotid glandAdipose tissue
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Excretory ductParotid gland
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Excretory duct
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Intercalated duct
Serous acinus
Demilunes of von Ebner
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Serous acinusMucous acinusMixed salivary gland
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Striated duct
Mucous acinus
Demilune of von Ebner
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Demilune of von EbnerMixed salivary gland
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Excretory ductSerous acinus
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Demilune of von EbnerMixed salivary gland
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Tooth germ of deciduous predeccessor
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Tooth germ of permanent successor
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Tooth germ of permanent successor
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Erupting permanent successorShedding of predecessor
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Decalcified H & E stained section showing shedding of deciduous tooth
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During the intraosseous phase, the rate averages 1-10 um per day, it increases to about 75 um per day once the tooth escapes from its bony cell .
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Tooth eruptionKey: 1 = milk teeth; 2 = developing adult teeth; 3 = jaw bone; 4 = gum
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Tooth eruption
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Osteoclasts erode jaw bone to make way for erupting adult tooth
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Eruption
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Reduced enamel epithelium
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Erupting deciduoustooth
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Meckels cartilage
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Meckels cartilage
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Nasal septum
Palatine process
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Psuedo-stratified ciliated epithelium
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Lining of maxillary sinus
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Lining of maxillary sinus
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Lining of maxillary sinus
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Lining of maxillary sinus
Goblet cell
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Articular eminence
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Articular disc
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Condyler head
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Articular disc(meniscus)Condylar headGlenoid fossa
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ORAL BIOLOGYDEPARTMENT
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