EX2; Eruption and Shedding Practical Images Flashcards
What stage of eruption is this
pre-emergence
What stage of eruption is this
Pre-functional
What stage of eruption is this
functional
What is the primary direction of movement during this stage
facially
reduced enamel epithelium
Hertwig’s epithelial root sheath
What is happening here
demineralization of a forming crown
What is this image depicting
reduced enamel epithelium (attached by basal lamina)
What is this structure and what are its two main functions
Hertwig’s root sheath
determines root dentin outline and number of root canals
What do the arrows depict
Hertwig’s root sheath determining the numer of root canals (1)
What stage is this
pre-functional
A; reduced enamel epithelium
B; HERS
C; diaphragm
A; immature enamel
B; reduced enamel epithelium
C; HERS
D; periodontal ligament
E; mineralized dentin
F; predentin
G; odontoblasts
A; reduced enamel epithelium
B; immature enamel
C; HERS
D; root dentin
E; forming PDL
G; cementum
(sorry no F, my alphabet skills are a little off)
A; cementoblasts
B; HERS breaking up
C; HERS intact
D; odontobalsts
E; diaphragm
F; predentin
G; mineralized dentin
H; dental follicle
What is the arrow pointing to
Epithelial rest of Malassez
What is happening here
emergence int othe oral cavity and REE becomes junctinal epithelium
A; dentin
B; enamel
C; gingiva
D; lamina propria
E; junctional epithelium
F; cementum
A; junctional epithelium
B; lamina propria
C; primary cementum
A; cementum
B; dentin
C; enamel
D; junctional epithelium
E; connective tissue (lamina propria)
F; basal lamina
What are the following junctional epithelium attachment positions
A; attached to enamel
B; attached to enamel and cementum
C; attached to cementum
A; root
B; odontoclast
C; interradicular bone
D; osteoclast
E; root sheath diaphragm
What is taking place at the black arrow
bone resorption in order to shed the tooth
reduced enamel epithelium
What is located at the red arrow and what is taking place at the black arrow
red arrow; reduced enamel epithelium
black arrow: bone resorption
A; cementum
B; dentin
C; odontoclast (cementoclast)
D; odontoclast (dentinoclast)
E; PDL
