Lecture 9 - Facial Growth and Arch change | Take the Quiz

Antero-posterior growth of the maxilla occurs:

Via deposition of bone on the inferior oral side of the maxilla, which is used in targeted due to it's large growth potential

Via bone deposition directly to the perimeter of the hard palate , which is targeted in orthodontics due to it's large growth potential

Via bone deposition on the maxillary tuberosity, which is targeted in orthodontics due to it's large growth potential

Via bone deposition inside the surface of the maxilla within the sinus

The V principle (where direction of growth follows the pattern of A to B)

Applies to the transverse growth of the mandible in which bone deposition occurs on the outer side of the V and resorption on the inner surface

Applies to the transverse growth of the maxilla in which bone deposition occurs on the inner side of the V of the hard palate and resorption on the outer surface

Applies to the transverse growth of the maxilla in which bone deposition occurs on the outer side of the V and resorption on the inner surface

Applies to the transverse growth of the maxilla in which bone deposition occurs on the outer side of the V and resorption on the outer surface also, to replace lost bone

Which if the following is INCORRECT in relation to antero-posterior growth of the mandible..

It involves the hoizontalprojection of the mandible, and is dependent on the location of the glenoid fossa

At birth, the mental protuberance (symphysis of external surface of the mandible) is the same size as it remains to be in adulthood

The antero-posterior growth of the whole mandible tends to "lag" and will alter catch up to the maxilla

Those whom have constant lagging of mandibular growth are likely to develop Class II dentofacial disharmony

Which of the following is the odd one out?

Anterio-posterior growth of mandible and chin projection of mandible

Vertical growth of mandible remodelling of ramus

Transverse growth of mandible and symphyseal suture of mandible

Anterio-posterior growht of mandible and glenoid fossa

Transverse growth of mandible and mental protuberance

The period in ones life where the greatest incremental increase int total maxillary and mandibular arch length occurs is:

6mnths-2yrs

Birth-6mnths

18mnths-2yrs

18mnths-5yrs

Dolicephalic head form is generally recognised by (MORE than one)

Having a head that is short from front to back

Having a head that is long from front to back

More open cranial base leading to stooped posture of body with anterior inclination of neck and head

Cranial base angle is more closed and the posture of head and body thus tend to be more erect

The 3 main types of facial profiles are:

Orthognathic (straight jaw), Retrognathic (retruding chin) and Transognathic (asymmetrical jaw border)

Orthognathic (straight jaw), Retrognathic (retruding chin) and Prognathic (bold lower jaw)

Orthognathic (straight jaw), Prognathic (bold lower jaw) and Transognathic (asymmetrical jaw border)

Bone enlarges and remodels by the addition of new bone on one side of the cortical plate and the removal of old bone from the opposite side of the same cortex

True

False

The two basic types of bone growth are

Displacement and resorption

Displacement and relocation

Vertical and horizontal

Antero-posterior and vertical

The phenomenon that facial growth never in facts stops, but merely slows in rate has been proven by :

Bolton and Bjork

Bolton and Bambha

Bjork and Bambha

Bambha and Djikman

Displacement in craniofacial growth is is:

The bone wall changing itself to achieve a change in shape/position of the bone

Separation of articular joints and bones as the surrounding muscles and soft tissues expand

Solely growth at the synchondroses of the maxilla

The action of moving something from its place/position

Remodelling is:

The bone wall changing itself to achieve a change in shape/position of the bone

Separation of articular joints and bones as the surrounding muscles and soft tissues expand

Solely growth at the synchondroses of the maxilla

A phenomenon seen in Rem Pros when a denture is ill fitting

Craniofacial growth of the mandible is the passive displacement of the mandible related to growth a tthe synchondroses of the cranial base

True

False

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Lecture 9 - Facial Growth and Arch change

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