In a child, correction of a bilateral posterior constriction of the maxillary arch has the WORST long term prognosis for stability if
a fixed expansion quadhelix is used for treatment
there is a functional shift from initial contact to maximum intercuspation.
the maxillary posterior teeth are centred on the alveolar process
there is a history of prolonged thumb sucking.
0 explanations
Explanations are useful to guide through learning process and confirm that the correct answer is indeed correct.
Only registered users can add explanations