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12 Cards in this Set
- Front
- Back
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What does periodontium consist of?
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gingiva (free & attached)
periodontal ligament (PDL) cementum alveolar bone |
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What is oral cavity called at 4-5 weeks gestation?
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stomodeum
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What happens at 10 weeks gestation?
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ectomesenchyme is attracted to and surrounds the tooth bud
-woven bone starts (alveolar bone) -tooth bud differentiates into dental organ |
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What are 4 layers of dental organ?
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1. IEE (develops into ameloblast)
2. SI 3. SR 4. OEE |
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What does the dental papilla become?
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Dental Follicle
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What does the dental follicle give rise to?
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1. Cementum (differentiate into cementoblasts)
2. Periodontal membrane (differentiate into fibroblasts) 3. Alveolar Bone (differentiate into osteoblasts) |
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What does the dental papilla give rise to?
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1. Crown
2. Root Dentin 3. Pulp |
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What must form first?
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DENTIN
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What is HERS?
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Hertwig's Epithelial Root Sheath
As HERS contacts DP, DP differentiates into odontoblasts |
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What do cells nearest dentin differentiating into cementoblasts make?
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cementum
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What do cells adjacent to cementum differentiating into fibroblasts make?
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Periodontal membrane
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Dental follicle further differentiating into osteoblasts along PDM makes what?
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alveolar bone
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