EX1; Practical Images - Enamel Tissue and Amelogenesis Flashcards by Courtney Kast

Q

Where are these DEJ relationships found

A

A; scolloped = coronal area
B; smooth = cervical area

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Q

A

odontoblasts
ameloblasts

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Q

What is this structure?

A

ameloblasts

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Q

What are these lines?

A

growth lines or strae of Retzius

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Q

What are these lines/ridges?

A

perikymata

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Q

What are these ridges?

A

perikymata

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Q

A

interrod substance
enamel rod
enamel sheath

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Q

What is the difference between the left and the right images of enamel

A

left = primary
right = permanent

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Q

A

perikymata
lines of Retzius

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Q

A

interrod substance
enamel rod

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Q

Is this mature or partially mineralized enamel

A

mature; cross section of the rods

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Q

Is this mature or partially mineralized enamel

A

patrially mineralized; cross section of the enamel rods

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Q

What relationship is this showing

A

relationship of Retzius lines to the longitudinal rods

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Q

What is this image depicting

A

the fish scale appearence of enamel rods

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Q

A

enamel rod
enamel rod sheath
interrod substance

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Q

A

enamel rod
interrod substance

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Q

A

enamel lamella

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Q

A

enamel tufts

Q

A

enamel tufts

Q

A

enamel spindle

Q

A

enamel spindle

Q

A

enamel lamella

Q

A

enamel spindle

Q

A

Hunter-Schreager bands

Hunter-Schreager bands

Which of these is enamel

top right

Which of these relationships is normal

left; most common

What do each of these tissues give to amelogenesis

1. ameloblast 2. alkaline phosphatase 3. rich blood supply

1. stellate reticulum 2. stratum intermedium 3. inner cells 4. clear layer 5. peripheral calls of dntal papilla

yellow arrow = ameloblasts white arroe = odontoblasts

1. dentin 2. DEJ 3. enamel

1. inner rodless enamel 2. Tomes' process

1. inner rodless enamel 2. enamel rod 3. Tomes' process

1. paritally mineralized enamel 2. Tomes' processes

1. pulp 2. dentin 3. enamel 4. ameloblasts 5. stratum intermedium 6. stellate reticulum

1. stellate reticulum 2. stratum intermedium 3. ameloblasts 4. enamel

1. dentin 2. enamel 3. ameloblasts 4. Tomes' process

1. dentin 2. enamel 3. ameloblasts 4. Tomes' process

1. reduced enamel epithelium 2. oral ectoderm

1. mature enamel 2. dentin 3. immature enamel 4. pulp

1. stellate reticulum 2. stratum intermedium 3. odontoblasts 4. ameloblasts 5. dentin 6. ameloblasts

? = reduced enamel epithelium

1. preodontoblasts