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18 Cards in this Set
- Front
- Back
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What are three theories of Craniofacial Growth?
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Genetics
Epigenetics Envorinmental |
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Sichers Sutural Dominance Theory falls into what theoretical explanation of Craniofacial growth?
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Genetics - (Theorized that cells in sutures were genetically controlles)
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Scott's Cartilagenous Growth Theory falls into what theoretical category of craniofacial growth?
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Epigenetics - (Scott predicted that genetics was tied to cartilage but not directly tied to bone)
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In Scott's Cartilagenous Growth Theory, what guided skeletal growth downwards and forwards?
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Nasal Septum
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Which form of bone growth is more influenced by environmental factors? (Endochondral or Intramembranous)
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Intramembranous Bone Growth
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Which direction does the Maxilla grow?
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Downwards and Forwards, away from the Cranial Base
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What type of mandible growth problem can lead to a short face and deep bite?
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When the mandible overly rotates closed after moderate-more Growth and little eruption of dentition.
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What type of mandibular growth problem can lead to a long face and open bite?
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Little growth of the mandible with normal-excess eruption, with rotation open
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What is an indicator in girls of post peak maturation?
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Onset of menstruation
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What is an indicator in boys of post peak maturation?
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Chin hair
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At what age have most all primary teeth erupted?
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30 Months
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What is the often seen interarch relationship seen in the primary dentition?
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Edge to Edge (results in considerable wear)
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Permanent incisors that lack space will erupt to which side of the primary tooth?
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The Lingual
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In severely crowded arches, the eruption of the permanent incisors may result in the premature loss of which teeth?
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Primary Canines
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What is the extra space called from the primary canines and first and second molars?
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Leeway Space
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What are the average leeway spaces for the maxillary arch and mandibular arch?
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1.5mm per side - Max
2.5mm per side - Mand |
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Which primary inter-arch relationship results in the highest percentage of permanent results being Class I?
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Mesial Step of 1mm
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Which primary interarch relationship will always lead to a Class II permanent result?
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Distal Step
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