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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
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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
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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)
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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)
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What is the order of craniofacial development?
Cranial vault complete-->Maxilla-->Mandible
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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
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neural growth slows betwen 3 and 9 years- -
maxillary grows much faster and the mandible early on - -mandibular growth resembles the general growth curve
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What are the phases of life cycles of the tooth?
- 1. Growth (initiation, proliferation, histodifferentiation, morphodifferentiation, apposition)
- 2. Calcification
- 3. Eruption
- 4. Attrition
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What is initiation during the tooth life cycle?
Initiation is when the bud first begins formation
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What is proliferation during the life cycle?
Proliferation occurs when the cells begin dividing
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What is histodifferentiation during the tooth life cycle?
Histodifferentiation occurs when the cell types differentiate
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What is Morphodifferentiation?
- Morphodifferentiation occurs during the life cycle of the tooth
- -follows histodifferentiation
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shape begins to be laid out
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Picture of Scammon's curve
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What does root development correlate with?
Root development correlats with eruption of the tooth
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what are the three phases of tooth eruption?
Preeruptive, eruptive (prefunctional), and eruptive (functional)
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What happens during the preeruptive phase?
Root formation begins and the tooth moves toward the bony surface
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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
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What is eruptive (functional)?
- Functional eruption occurs from gingival emergence to the point where a tooth meets its antagonist
- -third phase of tooth eruption
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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
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what is the tooth eruption sequence of primary dentition?
(only look at eruption)
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What is the permanent tooth eruption sequence?
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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
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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
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When do most children have interdental spacing throughout the arches?
- Most have interdental arch spacing between 0-3 yrs
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this occurs particularly in the incisor region - -specifically in the primate spaces
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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
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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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