0-3yrs.txt

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Author:
Grant32
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185445
Filename:
0-3yrs.txt
Updated:
2012-11-27 10:29:07
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GDA2
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GDA lecture 2
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  1. What is the most prevalent disease in our nation's children (according to Centers for Disease Control and Prevention). What % of children have this?
    Caries is the most prevalent disease in our nation's children. Greater than 40% have this by kindergarten
  2. What is the dental home?
    • The dental home is an ongoing relationship between dentist and patient.
    • -includes all aspects of oral health care
    • -comprehensive and continuously accessible. 
    • -begins as early as 6 months or 6 months after 1st tooth erupts
    • -establish begins before age 12 months
    • -refer to specialists when appropriate
  3. Physical: Craniofacial aspects
    • -transverse dimension is closest to adult size
    • -anterior-posterior dimension demonstrates different growth rates for maxilla and mandible
    • -Vertical dimension is the least developed at birth (40% of adult)
  4. What are some aspects of a toddler's cranial vault
    • The cranial vault is closer to adult size than the face
    • -this mirrors neural growth (all nerve cells develop by 8th month in utero)
  5. What is the order of craniofacial development?
    Cranial vault complete-->Maxilla-->Mandible
  6. What is Scammon's growth curve?
    • Scammon's growth curve demonstrates when the peak growth of craniofacial structures occurs.
    • -growth at 20 years is 100%
    • -lymphoid tissues grow and then regress
    • -neural growth slows betwen 3 and 9 years
    • -maxillary grows much faster and the mandible early on
    • -mandibular growth resembles the general growth curve
  7. What are the phases of life cycles of the tooth?
    • 1. Growth (initiation, proliferation, histodifferentiation, morphodifferentiation, apposition)
    • 2. Calcification
    • 3. Eruption
    • 4. Attrition
  8. What is initiation during the tooth life cycle?
    Initiation is when the bud first begins formation
  9. What is proliferation during the life cycle?
    Proliferation occurs when the cells begin dividing
  10. What is histodifferentiation during the tooth life cycle?
    Histodifferentiation occurs when the cell types differentiate
  11. What is Morphodifferentiation?
    • Morphodifferentiation occurs during the life cycle of the tooth
    • -follows histodifferentiation
    • -shape begins to be laid out
  12. Picture of Scammon's curve
  13. What does root development correlate with?
    Root development correlats with eruption of the tooth
  14. what are the three phases of tooth eruption?
    Preeruptive, eruptive (prefunctional), and eruptive (functional)
  15. What happens during the preeruptive phase?
    Root formation begins and the tooth moves toward the bony surface
  16. what occurs during the eruptive (prefunctional) phase?
    • -the root develops through gingival emergence
    • -most roots are 1/2 to 2/3 developed upon gingival emergence
  17. What is eruptive (functional)?
    • Functional eruption occurs from gingival emergence to the point where a tooth meets its antagonist
    • -third phase of tooth eruption
  18. What are the causes of tooth eruption?
    • -root formation
    • -proliferation of Hertwig's epithelial root sheath
    • -proliferation of connective tissue of the dental papilla
    • -simultaneous growth of th ejaw
    • -pressures from muscular action
    • -apposition and resorption of bone
  19. what is the tooth eruption sequence of primary dentition?
    (only look at eruption)
  20. What is the permanent tooth eruption sequence?
  21. What are the stages of development of primary teeth?
    • 1. Tooth formation 7 weeks in utero
    • 2. Calcification of all primary teeth evident at birth
    • 3. Enamel complete by 1 year
    • 4. All primary teeth erupted by 24-36 months
    • 5. Primary roots complete by 3 years
  22. what are the stages of development of permanent teeth?
    1. tooth formatino of 1st molars, incisors, canines 3-6 mo in utero

    2. Calcification of 1st molars evident at birth

    3. Calcification of all permanent teeth (except 3rds) at 3 yrs

    4. Enamel of incisors and first molars complete by 5 yrs
  23. When do most children have interdental spacing throughout the arches?
    • Most have interdental arch spacing between 0-3 yrs
    • -this occurs particularly in the incisor region
    • -specifically in the primate spaces
  24. What is a child's language capacity?
    • -their receptive vocabulary is much greater than their expressive
    • -18 mo old has approximately 10 words
    • -3 yr old has approximately 1000 words
  25. Define cooperative, pre-cooperative, and uncooperative
    • Cooperative: able to take and follow instruction
    • Precooperative: physically unable to cooperate. Changes at 3
    • Uncooperative: able to, but unwilling to cooperate

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