ORD 722- Exam 1 Questions with Answers (All Answers Correct)
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Course
ORD 722
Institution
ORD 722
*A child who falls outside of the range of top _____% or bottom ____% of the population
on a standard growth chart should receive special study. - ️️97, 3
With a standard growth chart, variability of growth is expressed _____________. -
️️quantitatively
-Deviations from the average
Gro...
ORD 722- Exam 1
*A child who falls outside of the range of top _____% or bottom ____% of the population
on a standard growth chart should receive special study. - ✔️✔️97, 3
With a standard growth chart, variability of growth is expressed _____________. -
✔️✔️quantitatively
-Deviations from the average
Growth is: - ✔️✔️increase in size or number
Predictability of growth is when: - ✔️✔️patterns "repeat"
Development is: - ✔️✔️Increase in complexity
Facial form is the proportion between: - ✔️✔️facial width and facial length
Brachyfacial - ✔️✔️broad facial form
Mesofacial - ✔️✔️average facial form
Dolichofacial - ✔️✔️long facial form
Variability of growth - ✔️✔️not everyone is alike in the way they grow
(variation is normal within limits)
T or F? Variation is normal, within limits - ✔️✔️True
A child's growth should plot along the same _________________ ______________ at
all ages. - ✔️✔️percentile line
(If the growth line deviates, suspect growth abnormality (ie. illness))
Girls start their spurt of growth at puberty, around age ____. - ✔️✔️11
Boys start their spurt of growth at puberty, around age ____. - ✔️✔️13
Cephalocaudal gradient of growth - ✔️✔️Normal growth pattern, this means that there
is an axis of increased growth extending from the head toward the feet.
Cephalocaudal gradient of growth within the head and neck - ✔️✔️Mandible farther
away from brain= more caudal than maxilla
, the mandible tends to grow ______ and _____ than the maxilla - ✔️✔️more, later
*Scammon's growth curve demonstrates that - ✔️✔️not all tissue systems of the body
grow at the same rate
Growth of neural tissues is nearly complete by _______ years of age - ✔️✔️6-7
Growth of general body tissues (Muscle, bone, viscera) follows a _____ curve. -
✔️✔️S-shaped
(after when young, plateaus around age 5, then faster with age again)
Methods for studying physical growth - ✔️✔️1. Measurement-(no harm)
Measurement of growth approaches: - ✔️✔️Cephalometric radiology
-used in ortho eval and growth study
-requires precise head orientation and magnification control
Analysis of cephalometric images requires - ✔️✔️-measurements of dental and
skeletal positions
-superimpositions
Superimpositions of cephalometric images measures - ✔️✔️longitudinal changes
ex.) cranial base superimposition of cephalometric tracing at two time points on sella-
nasion line
Cephalometric radiology - ✔️✔️-direct measurement of skeletal dimensions
-growth change in same individual over time can be measured
cephalometric radiology with implants experiment - ✔️✔️Arne Bjork- Royal Dental
College Copenhagen
-inserted titanium metal pins into facial bones and superimposed images based on
implant markers
-Increased accuracy of cephlaometric analysis (pins don't move over time)
*Experimental growth measurement appraoach: Vital Staining - ✔️✔️-Anatomist John
Hunter, 18th century
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