ORAL HISTOLOGY SALIVARY GLANDS(SUBLINGUAL GLAND)

MIXED SALIVARY GLAND (PREDOMINANTLY MUCOUS)- SUBLINGUAL

SUBLINGUAL SALIVARY GLAND

MSU- Mucous salivary unit

SD- Serous demilune

Note: There is an absence of serous secretory units, and only a few serous demilunes are seen. The intercalated ducts are hard to find.

sublingual salivary gland by Dr. Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Based on a work at http://www.omfpcenter.com/.

ORAL HISTOLOGY- SALIVARY GLANDS ( SUBMANDIUBULAR)

MIXED SALIVARY GLAND- SUBMANDIBULAR

MIXED SALIVARY GLAND- SUBMANDIBULAR 

MSUSD- Mucous Secretory Unit with Serous Demilune 

SSU- Serous Secretory Unit

D- Demilune

ICD- Intercalated Duct

ED- Excretory Duct

BV- Blood Vessel          

Submandibular Gland by Mandana Donoghue is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY- SALIVARY GLANDS

SEROUS SALIVARY GLAND

Serous Salivary Gland 

( PAROTID)

SSU - Serous Secretory Unit(Serous Acinus)

ID- Intercalated Duct

SD- Striated Duct

BV- Blood Vessel

CTS- Connective Tissue Septa


Serous Salivary Gland by Mandana Donoghue is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY- PERIODONTAL LIGAMENT

CEMENTICLES:

FREE CEMENTICLE

CC- Cellular Cementum

PDL- Periodontal Ligament

CEM- Cementicle







Cementicles by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY - PERIODONTAL LIGAMENT

PERIODONTAL LIGAMENT- OBLIQUE FIBERS 

PERIODONTAL LIGAMENT 

D- Dentin

CC- Cellular Cementum

PDL- Periodontal Ligament ( oblique group of  fibers shown here)

AB- Alveolar Bone 

ABC- Alveolar Bone Canal 

BV- Blood Vessel

PERIODONTAL LIGAMENT by MANDANA DONOGHUE is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY - CEMENTUM

Sharpey's Fibers in Cementum:

Sharpey's Fibers

C- Cementum

D- Dentin

S- Sharpey's Fibers

T- Tomes Granular Layer



Sharpey's fibers by Vijayalaxmi Kotrashetti is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY- CEMENTUM

HYALINE ZONE OF HOPEWELL SMITH

Contributed by Dr. Vijayalaxmi Kotrashetti


ZHS by Vijayalaxmi Kotrashetti is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY- CEMENTUM

ACELLULAR AND CELLULAR CEMENTUM:

Types of cementum

C- Cementum

EFAC- Extrinsic fiber acellular cementum(primary cementum) 

IFCC- Intrinsic fiber cellular 
cementum(secondary cementum)

CC- Cementocytes

TGL- Tomes' Granular Layer


Types of Cementum by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY- CEMENTUM

CEMENTOENAMEL JUNCTION

Cementoenamel Junction (CEJ) -Overlap Junction, Gap Junction, Butt joint (left to right), Enamel ( E), cementum (C), Dentin (D)

Cementoenamel Junction by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.

ORAL HISTOLOGY- PULP

DENTICLE OR PULP STONE

 TRUE FREE PULP STONE

PS- Pulp stone  surrounded by odontoblasts 

BV- Blood vessel


NF- Nerve Fibers

FREE FALSE PULP STONES &
DIFFUSE CALCIFICATION

PS- Pulp Stone (Free)

DC- Diffuse calcification








Pulp Stones by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY- PULP

CENTRAL PULP

CENTRAL PULP

BV- Blood vessel

NF- Nerve Fibers 






central pulp by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY DIAGRAMS- DENTIN

PERITUBULAR AND INTERTUBULAR DENTIN

ITD- Intertubular Dentin

PTD- Peritubular Dentin

OP- Odontoblastic Process

Peritubular and intertubular dentin by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY DIAGRAMS - DENTIN

DENTINAL TUBULES, PRIMARY AND SECONDARY DENTIN:

E- Enamel

D- Dentin

DT- Dentinal Tubules

PD- Primary Dentin

SD- Secondary Dentin

PC- Pulp Chamber

Dentinal tubules, prim & sec dentin by Mandana Donoghue   @ https://flic.kr/p/2jzxJnU

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. 

ORAL HISTOLOGY DIAGRAMS - ENAMEL

ENAMEL TUFTS, LAMELLAE AND SPINDLES:

E- Enamel

SP- Enamel Spindles 

ET- Enamel Tufts

EL- Enamel Lamellae

D- Dentin

DEJ- Dentinoenamel Junction

Enamel Lamellae, tufts & spindles by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

ORAL HISTOLOGY DIAGRAMS- ENAMEL

HUNTER AND SCHREGER BANDS:

Hunter & Schreger Bands : The optical phenomenon seen as alternating light and dark bands, from DEJ towards the surface. Traversing 2/3rd of the enamel thickness.   ( Reflected light)     

Hunter & Schreger Bands of Enamel by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at www.oralpath.in.

                    

ORAL HISTOLOGY DIAGRAMS-ENAMEL

GNARLED ENAMEL

E- Enamel

GE- Gnarled Enamel (Undulating enamel rods across planes)

DEJ- Dentinoenamel Junction

D- Dentin

Gnarled Enamel Diagram by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at http://mandanadonoghue.blogspot.in/.

ORAL HISTOLOGY DIAGRAMS- Enamel- Incremental Lines of Retzius and Neonatal line

E- Enamel
D- Dentin
SR- Striae of Retzius ( Concentric rings produced by incremental enamel deposition)
NL- Neonatal line A prominent SR seen in deciduous teeth and at times cusps of permanent first molar
DEJ- Dentinoenamel Junction


Striae of Retzius by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

ORAL HISTOLOGY DIAGRAMS- Advanced Bell Stage of Tooth Development

Advanced Bell Stage

EO- Enamel Organ                                
OEE- Outer Enamel epithelium                                                                        
SR- Stellate Reticulum                                                        
SI- stratum Intermedium                                        
IEE- Inner Enamel Epithelium                                 EM- Enamel Matrix
CL- Cervical Loop
A- Ameloblast ( showing Reversal of polarity)
OEE Folds ( Invagination of OEE- Reversal of nutrition)

                                           
DP- Dental Pulp                                   
OD- Odontoblast                                                            D- Dentin                                     
UMC- Undifferentiated mesenchymal  cells
 
DS- Dental Sac

Contributed by Dr. Vimi Mutalik


Advanced Bell stage by Vimi Mutalik is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

ORAL HISTOLOGY DIAGRAMS- Human Tooth Development

Early Bell Stage:

Early Bell Stage

A1- Remaining Dental Lamina

A2- Secondary/Permanent Tooth Bud

B- Dental Papilla

C- Bell Shaped Enamel Organ

      C1- Outer Enamel Epithelium

      C2- Stellate Reticulum

      C3- Stratum Intermedium

      C4- Inner Enamel Epithelium

      C5- Cervical Loop

D- Dental Sac

E- Developing Bone

Early Bell Stage by Mandana Donoghue is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

ORAL HISTOLOGY DIAGRAMS- Human Tooth Development

Cap Stage:

Cap Stage of Tooth Development

A- Oral Epithelium

B- Dental Lamina

C- Developing tooth germ

     C1- Cap shaped Enamel organ -

                              C1 a-  Outer Enamel Epithelium( a  layer of cuboidal cells)

                              C1 b- Stellate reticulum -Central star shaped cells    

                              C1 c- Inner enamel epithelium( tall columnar cells lining the                                                                             concavity of the enamel organ                                                  

     C2- Dental Papilla- Condensation of ectomesenchymal cells adjacent to the inner enamel  epithelium.

     C3- Dental Sac/Follicle- Ectomesenchymal cells that surround the dental papilla and the enamel   organ.

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.