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9 Cards in this Set
- Front
- Back
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Number of the different teeth
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Dentes permanentes 32
dentes decidui 20 dens incisivus 8p8d dens caninus 4p4d dens premolaris 8p0d dens molaris 12p8d |
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Parts of teeth
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Crown(corona)
Neck(cervix) root(radix) - apex pulp - cavity, root canal |
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Surfacaes and directions
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occlusalis
vestibularis linguinalis(lower) palatinalis(upper) Mesialis distalis |
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fixation
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x gomphosis = socket = dentoalveolar juncture
x fixed in bony alveolus x by periodontium = all structures around the tooth |
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Peridontium
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x between tooth and alveolus (=ligaments fixed to the bone)
x collagen tissue (serves as alveolar periosteum) x suspensory tooth apparatus = fibres of various directions x penetrate into cement x quick CT and bone tissue regeneration |
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Denture Mordex
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x orthodentic position (vertical teeth)
x articulation = bite = oclusis xx 80% psalidontia = normal xx progenie = lower teeth in front oh the upper xx hiatodontia (=mordex apertus), stegodontia, prognathia, opisthodontia |
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Structure of teeth
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x Dentine - substantia eburnea
x Enamel - substantia adamantina x Cement - substantia ossea x Pulp - well-vascularized CT with nerves |
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Gum = Gingiva
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x mucosa attached to periosteum
x non-keratinizing stratified squamous epithelium x gingival groove x gingivodental junction |
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Teeth development
Odontogenesis |
x oral ectoderm
x Mesoderm x Neural crest cells Mesoderm and neural crest from mesenchyme Enamel from ectoderm all other tissue from mesenchyme |
