Periodontal tissues Flashcards

1
Q

what is the periodontium’s purpose?

A

to support the tooth

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2
Q

what is the periodontium made up of?

A
  • pdl
  • bone
  • gingivae
  • cementum
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3
Q

name each part

A
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4
Q

what kind of product is the PDL?

A

dense fibrous connective tissue

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5
Q

what are PDL fibres primarily composed of?

A

collagen

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6
Q

what is the purpose of PDL fibres (3 things)?

A

-attach tooth to bone
-shock absorber
-sensory (highly innervated)

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7
Q

name each part

A
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8
Q

name each part

A
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9
Q

why do we use infiltrations for upper teeth but use them less for lower teeth?

A
  • cortical bone of lower jaw thicker at molars/premolars and apices lie centrally in the jaw-requires IDB
  • cortical bone thinner for anteriors and apices lie buccal side so infiltration would work.
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10
Q

what two tissues make up the oral mucosa?

A
  • epithelium
  • connective tissue
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11
Q

what are the 3 types of oral mucosa?

A
  • masticatory
  • lining
  • specialised
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12
Q

describe the mucosa distribution intra-orally

A
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13
Q

describe gingival mucosa

A
  • masticatory
  • relatively thick epithelium
  • keratinised
  • pink
  • stippled
  • firm
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14
Q

describe alveolar mucosa

A
  • lining
  • relatively thin epithelium
  • non-keratinised
  • red
  • loose/mobile
  • smooth
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15
Q

name these parts

A
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16
Q

name these parts

A