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Questions and Answers
What are the two anatomical areas that can be separately acted upon by anchoring the expansion device to the deciduous teeth?
1.1 the basal maxillary bone, which is expanded symmetrically, 1.2 the alveolar bone on the permanent molars and intercanine area
How can the expansion screw bonded to the deciduous teeth be advantageous in cases of asymmetries in movement of permanent molars?
It allows for different movement in the right side and in the left side (UPXB and asymmetries) by using the deciduous teeth as anchorage.
What is the crucial advantage of using the expansion screw bonded to the deciduous teeth in cases of anterior crowding in the absence of PXB?
The intercanine expansion necessary to correct the anterior crowding can be completely produced by moving the permanent molars in the opposite direction.
In what cases can the intercanine expansion necessary to correct anterior crowding be produced by moving the permanent molars in the opposite direction?
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In what situation does A/PXB not self-correct?
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