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5143 Dental

An 8-year old child with normal tooth calcification and eruption has primary mandibular second molar extracted. The resulted space should be:

AMaintained until the premolar root is 2/3 developed (Correct Answer)
BClosed slightly to accommodate the smaller premolar
CIgnored, because the second premolar will erupt in a short time
DLeft untreated, because the difference in size between the primary molar and the premolar will compensate for any drifting that might occur