Basics Flashcards

from Liya's notes (to know more about the structures around teeth)

1
Q

what is the mucosal support (in cm^2) for maxilla nd mandi?

A

maxi-22.96 cm62
mandi-12.25 cm^2

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2
Q

what is residual ridge / residual bone?

A

residual ridge is that part of alveolar ridge which remains after the loss of teeth

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3
Q

resistance to vertical displacement of denture?

A

retention

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4
Q

Compare the mastication forces of the natural dentition nd CD

A
  • Natural dentition masticatory forces : 200N/175 lbs
  • CD masticatory forces is 60-80 N/ 22-24 lbs
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5
Q

what is the pdl attachment (in cm^2) for each dental arch?

A

45 cm^2

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6
Q

components of alveolar ridge?

A
  1. residual ridge
  2. alveolar bone
  3. mucosa
  4. submucosa
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7
Q

resistance to vertical displacement towards denture bearing areas is?

A

support

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8
Q

types of jaw movements/ forces

A
  1. functional (mastication nd speech
  2. parafunctional (chenching + grinding)
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9
Q

Morphological changes asssociated with edentulous state

A
  1. loss of labiodental angle
  2. loss of horizontal labial angle
  3. loss of columnella-philtral angle
  4. deepening of nasolabial groove
  5. narrowing of lips
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10
Q

What are the 3 classes?

A

Class 1: normal occlusion
CLass 2: retrognathic
Class 3: Prognathic

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11
Q

What are the components of periodontium?

A
  1. hard connective tissue (cementum+alveolar bone)
  2. soft connective tissue (pld + lamina propia of gingiva)
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12
Q

components of residual ridge?

A
  1. denture-bearing area
  2. submucosa
  3. periosteum
  4. underlying bone
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13
Q

what is osteoporosis?

A

accelerated loss of trabecular bone
-2 types: Type 1: affects woman a decade after menopause
Type 2: affects men/woman for no reason

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14
Q
A
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15
Q

resistance to horizontal/lateral displacement?

A

stability

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16
Q

what is centric relation?

A

most posterior/ retruded position of mandible in relation to the maxilla

17
Q

greatest force on teeth?

A

vertical (mastication + deglutition)

18
Q

what is centric occlusion?

A

-slightly anterior to centric
relation
-most functional tooth contacts occur here

19
Q

what is combination syndrome?

A

CUD + PLD not balanced properly
-causes resorption of primaxilla
-occlusal plane problems
-hypertrophy on tuberosity