Malocclusion Revision Questions

Question 1

What is malocclusion

Answer 1

a localised problem within either arch confined to 1/2 teeth producing a malocclsion

Question 2

Variation in tooth number

Answer 2

supernumerary tooth 
hypodontia
retained primary teeth 
early loss of primary teeth - due to trauma, PA path, caries, resorption by successor
unschduled loss of permanent teeth

Question 3

Variation in tooth size or form

Answer 3

macrodontia
microdontia
abnormal form

Question 4

Abnoramilties of tooth position

Answer 4

ectopic canine
ectopic 1st molar
ectopic upper central incisors

Question 5

What to do to check for ectopic canine

Answer 5

check at 9 years paltally
look for bumps of 3's
inclination of lateral incisors
mobility of primary and permanent incisors
colour of primary canine

Question 6

Management of ectopic canine

Answer 6

XLA of C’s
retain 3 and observe
surgical exposure and ortho
XLA

Question 7

Management for ectopic central incisors

Answer 7

check for sequence and symmetry 
surgical exposure
bonded retainer
ortho traction 
remove obstruction and gold chain
make space 
montior for 1.5years

Question 8

Transpostions

Answer 8

interchange in postition of 2 teeth

treatment - except, XLA and close spcae, correct

Question 9

True transpoistions

Answer 9

where roots and crowns are both switched

Question 10

Pseudo/false postition transpositions

Answer 10

crowns have switched places but root apcies in correct positon

Question 11

Local abnormailites of soft tissues

Answer 11

Digit sucking
Frenum - may cause median diastema
Tongue thrust - can cause spacing/AOB

Question 12

Local pathlology

Answer 12

Caries
Cysts
Tumours

Question 13

Types of supernumrary teeth

Answer 13

Conical
Tuberculate
Supplemental
Odontome