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Exam 1: DHHD 5001 > Childhood and Primary Dentition (Britton) > Flashcards

Childhood and Primary Dentition (Britton) Flashcards

1
Q
  1. _____ growth in utero
  2. Birth is a traumatic event that the ______ and _____ helps.
  3. ______ adaptation
  4. Growth ceases and small weight loss in the first 7-10 days
A
  1. Rapid
  2. Small mandible, Cranial distortion
  3. Physiologic
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2
Q

Factors affecting growth

A
  • Premature birth (low weight)
  • Chronic illness
  • Nutritional status
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3
Q

Physiologic functions of the oral cavity

A
  • Respiration
  • Swallowing
  • Mastication
  • Speech
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4
Q

Airway established right after ____

  • Tongue drops _______
  • Mandible ______ away from posterior pharyngeal wall
  • Newborns are obligatory ____ breathers
  • Respiratory movements are practiced _____
A
  • Birth
  • downward and forward
  • downward
  • Nasal
  • in utero
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5
Q
  • Small nibbling movements of the lips (reflex action)
  • Causes lactation of the mothers breast
  • Infantile swallow
  • Milk flows posterior over the tongue
  • Tongue is placed anteriorly with contact on the lower lip
A

Suckling

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6
Q

Suckling reflex and infantile swallow usually disappear after ________

  • Increased activation of the ______ muscles of the mandible
  • Move to semisolid and solid food requires more active movement in the ______
A
  • first year of life
  • elevator
  • posterior
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7
Q 
Adult Swallow Pattern:
As sucking activity stops
-Cessation of \_\_\_ activity
-Tongue tip places against the \_\_\_\_\_\_\_ behind the upper incisors
-Posterior teeth brought into \_\_\_\_\_
-Age 8 60% adult swallow 40% in \_\_\_\_\_\_
-\_\_\_\_\_\_\_ will delay transition
A
  • Lip
  • Alveolar process
  • Occlusion
  • Transition
  • Anterior open bite
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8
Q
  • Tongue placed anteriorly between the teeth when swallowing; allow for creation of a seal in the anterior
  • Result of an anterior open bite or transition
A

Tongue thrust

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9
Q
  • Tongue is placed between the teeth at longer intervals while relaxing, playing video games, concentrating; changes the duration
  • Can cause an anterior open bite
A

Tongue Posture

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10
Q

Adult _____ pattern:

  • Opens straight down
  • Moves laterally to bring teeth into contact
  • Appears in conjunction with the eruption of the permanent canines (age 12)
A

Chewing

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11
Q

How do all teeth fit?

A
  • Two Dentitions
  • Sequential development of the dentition
  • Sequential development of the teeth
  • Delayed mesiodistal enlargement of posterior teeth
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12
Q
  • Normal variation
  • Genetic Component
  • Outside influences
A

Variability

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13
Q

permanent teeth that replace primary teeth

A

Succedaneous Teeth

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14
Q

Spaces between baby teeth

A

Primate spaces

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15
Q

the perpendicular distance from a point between the central incisors to a line connecting the mesial contacts of the first permanent molars

A

Arch Length

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16
Q

the distance from the mesial contact of one first permanent molar to its antimere as measured through the contact points or buccal cusp tips of all of the intervening teeth, ignoring those teeth that are malpositioned or blocked out so that the measurement represents an ideal arch form

A

Arch Circumference

17
Q

Changes in the arch

A
  • Expansion at Canine Regions

- Anterior Teeth More Forward

18
Q

Leeway Space

A
  1. 5 mm mand

1. 5 mm max

19
Q

Common Characteristics

of a Mixed Dentition

A
  • Ugly Duckling

- Incisor Liability

20
Q

How to test growth

A
  • Hand wrist film

- Cervical vertebrae

21
Q
  • Eruption before emerging into oral cavity
  • Eruption “movements” begin as soon as the roots begin to develop (Significance? Metabolic activity in the PDL?)
  • Requirements
    1. Resorption of bone and primary tooth
    2. Eruption mechanism must guide tooth to erupt
A

Preemergent Eruption

22
Q

deficient resorption of bone and primary teeth, supernumerary teeth, fibrous gingiva

A

Cleidocranial Dysplasia

23
Q

If no resorption or if there is an obstruction…

A

tooth will not erupt

24
Q
  • “Eruption mechanism” must guide tooth to erupt
  • Mechanical Obstruction
  • “________” have bone resorption, crowns appear in mouth, but teeth never erupt enough to occlude
A

Primary failure of eruption

25
Q

Does bone resorption induce the “eruptive mechanism”?

_________

A

NO, BUT need the bone cleared

26
Q

Does the “eruptive mechanism” induce bone resorption?

A

Appears that follicle signals for bone resorption but still need “eruptive mechanism” to be functioning in order for the tooth to erupt

27
Q

Theories of Tooth eruption

What induces teeth to erupt?

A

Possible Mediators

  • Pressure from developing tissue at apex.
  • Direct bone formation
  • Dental Follicle
  • Periodontal Ligament-Contraction of Fibers, Myofibroblasts
28
Q
  • Usually emerge when ¾ of root complete
  • Eruption of teeth until occlusal level is reached.
  • Postemergent Spurt
  • Juvenile Occlusal Equilibrium
  • 2-3 years after eruption, roots are completely formed
A

-Postemergent eruption

29
Q
  • Rapid eruption from penetration of the gingiva to occlusal level
  • Eruption timing? (Possibly more in the late evening 8 PM – 1 AM)
A

Postemergent Spurt

30
Q

Teeth erupt slowly – seem to parallel the growth of the mandibular ramus

A

Juvenile Occlusal Equilibrium

31
Q

the roots of primary teeth lose their normal attachment to the bone and become fused directly to the bone.

A

Ankylosis

32
Q

Diagnosis of ankylosis

A
  • Percussion
  • Dipping of the interproximal bone
  • Abnormal infraocclusion of the occlusal plane
33
Q

ntal age is a developmental age scale, based on three things:

A
  • Which teeth have erupted
  • The amount of crown or root development of the permanent teeth
  • The degree of root resorption of the primary teeth
34
Q

Dental age has a loose correlation with chronologic age. ______ is more important than age.

A

Sequence

Exam 1: DHHD 5001 (14 decks)

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