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35 Cards in this Set
- Front
- Back
What are three methods for studying growth (besides taking this class)?
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Vital staining
Metallic implants Radiography |
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What two processes take place in growing bone?
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Resorption
Deposition |
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What are the two dyes used in vital staining?
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Alizarin red
Trypan blue A. red is lost on decalcification |
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Which antibiotic, responsible for clinical aesthetic complaints, can be used to study growth?
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Tetracycline - intrinsic staining
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What is a major potential problem with some vital staining methods (Pb acetate, Radioactive isotopes, etc.)
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Toxicity
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In terms of growth, metallic implants behave like what?
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Ankylosed teeth
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What is a non-cranial indicator of physiologic maturity?
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Hand-wrist radiographs,
sesamoid bone appears at menarche |
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Cross-sectional data lacks __
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time:
No chronological component |
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Study of facial growth using human skulls is called __
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Craniometry
half-credit for Zombie invasion |
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Anthropometry has what key advantages?
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Directly measures the living using calipers
Includes soft tissues Longitudinal data |
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How does longitudinal data differ from cross-sectional data?
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Reflects changes over time
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Which type of craniofacial assessment is both longitudinal and cross-sectional?
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Cephalometry;
2-dimensional, precision, standardized method of studying growth of living patients |
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Technology has allowed for an advanced method of craniofacial assessment. What is it called? What is the main disadvantage?
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Cone Beam Computed Tomography - (CBCT)
¡Es muy espensivo! |
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Cross-sectional data is:
Longitudinal data: |
Easier to compare
Takes time! |
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Who are the "dead guys" associated with Cephalometric radiographic?
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Paccini (1922)
Broadbent & Hofrath (1931) Primarily a research tool at the time. |
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The "planes" develop in what order?
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Transverse → Saggital → Vertical
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At what age might we expect a clinically observable cross-bite?
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Age 8!
May be predicted as early as 6 radiographically. |
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Overjet and Occlusion are __ dentofacial relationships.
Overbite is a __ relationship. |
Saggital
Vertical |
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In dental shorthand (charting style), what is a Class II occlusion?
Class III? |
II: Max MB cusp M to Mand MB groove
III: Max MB cusp D to Mand MB groove Defined as 3/30 or 14/19 (1st molars) |
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In class II, overjet is (+/-)
In class III, overjet is (+/-) |
Class II: + overjet
Class III: - overjet |
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What determines whether Ortho alone can treat a malocclusion?
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Whether Max/Mand is at fault.
Whether it is hyper/hypoplastic. |
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Blacks have a propensity towards which class: II or III?
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Class III
Koreans and Japanese also have this propensity |
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Whites with malocclusion are more commonly which class?
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Class II
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When using Cephalometry it is important to distinguish __ from __ changes.
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Treatment/Growth...
Patient might look great, but your fancy treatment had nothing to do with it! ;-) |
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What are the standard colors of cephalometric overlays, and what do they represent?
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Black - Prior to Tx
Blue - Progress records Red - End of Tx Green - Recall/Retention |
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Which number represents the Sella Turcica?
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28
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What structure is #13?
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Mandibular canal
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Where is the pterygomaxillary fissure?
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24
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Which two landmarks are the least likely to change?
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4 - Superior border of condylar fossa
11 - External Auditory Meatus |
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Name the structures:
2 - 3 - 8 - |
2 - Frontal process of zygomatic bone
3 - Temporal process of zygomatic bone 8 - Zygomatic process of temporal bone |
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The Frankfort plane uses which two landmarks?
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Porion (Po) → Inferior Orbit (Or)
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The palatal plane runs through which two landmarks?
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PNS → ANS
Posterior → Anterior Nasal Spine |
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The bony chin is called the
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Pogonion
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The soft tissue chin is called the
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"spog"
(Soft Pogonion) |
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The E-line runs through which structures?
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Prn → spog
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