P3-ORTHO-PPT 7

developmental age

This is the age where How far along a person is in their overall growth

and development, compared to what's "typical."

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Chronologic age

This is the age where the actual age of a person in years and months counted from their date of birth

Skeletal age

This is the age where age expressed in years that corresponds to the level of maturation of bones

Behavioral age

This is the age where it is a subjective age, a measure of maturity based on behavior, emotions, and decision-making

7 years old

What age is when a child completed his or her neural growth

-ossification of bones (hands and wrist)

-CVM method (cervical vertebral maturation method)

2 methods on assessment of skeletal age

Wrist and hand markers

Standard for skeletal development

Cleidocranial dysplasia

This conditioj is when not only is resorption of primary teeth andbone deficient, but heavy fibrous gingiva and multiple supernumerary teeth also impede normal eruption.

Resorption

This mechanism is the rate limitnig factor in preemergent eruption

-Preemergent eruption

-Postemergent eruption

-Juvenile occlusal equilibrium

-Adult occlusal equilibrium

List the 4 stages of eruption of permanent teeth

TRue

True or false: in resorption activie formation of root is not necessary for continued clearance of eruption path or movement of a tooth along it

Dilaceration

What root form is when eruption is mechanically blocked, that proliferation apical area will move in

the opposite direction, inducing resorption where it usually does not occur

Root formation

What signal that tooth eruption starts

Primary failure of eruption (PFE)

What condition is when the propulsive mechanism that moves the tooth along

the eruption path is defective.

Parathyroid hormone receptor gene

In PFE, what mutation causes it and causes the eruption path to be defective

Postemergent spurt

This is when rapid eruption

from the time a tooth first penetrates the gingiva until it reaches the occlusal level

JUvenile occlusal equilibrium

THis phase is where very slow eruption occurs

Postemergent eruption

This is when eruption slows and then as it

reaches the occlusal level of other teeth and is in complete function, eruption all but halts

Adult occlusal equilibrium

WHen the purbertal growth spurt ends, what is the final phase in tooth eruption

-Which teeth have erupted

-Resoprtion of the roots of the primary teeth

-Development of the permanent teeth

3 Chartacterisitcs of dental age

MN central incisors -> MN first molar & MX first molar

MOst common seuquence of eruption

MX central incisors & MN lateral incisors

IN dental age 7, what are the teeth to be erupted

MX lateral incisors

IN dental age 8, what teeth are expected to erupt

Dental age 9

What dental age is when there is no teeth eruption

-EXtent of resorption of primary canines

-Extent of root development of their permanent successors

Dental age 9 and 10 must be distinguished by?

-Primary canines

-Primary first molars

-Primary second molars

What primary teeth are present in dental age 9

DEntal age 9

What age does root development start?

First premolar

in root development, waht tooth does it start in the maxillary arch

Dental age 10

Which age is where one-half of the root of each mandibular canine and mandibular

first premolar has been completed

-Mandibualr canine

-Mandibular first premolar

-Maxillary first premolars

In dental age 11, what are the teeth that are going to erupt

-Maxillary canine

-Maxillary Second molar

-Mandibular second molar

IN dental age 11, what are the remaining primary teeth

Succedaneous

THis refers to permanent teeth

that replace primary predecessors

8-9

What age will a normal child will go through the transitory stage of incisor crowding

E space

The mandibular primary second molar

is on the average 2 mm larger than the second premolar; in the

maxillary arch, the primary second molar is 1.5 mm larger. This additional space for the permanent teeth is known as

FLush terminal plane

A normal relationship of primary molar teeth is called

Distal step

WHat is the primary dentition equivalent of Angle's class II

mesial step

WHat is the relationship called that corresponds to Angle's class I or dentition equivalent to Angle's Class I