After exfoliation of the primary mandibular left second molar,which permanent tooth will take its place?

Question

Quizplus · Accepted Answer

After exfoliation of the primary mandibular left second molar, the permanent mandibular left second premolar (#20) will take its place. This is because premolars erupt after molars and there is no permanent molar that replaces primary molars. Therefore, the next tooth in line to replace the primary mandibular left second molar is the permanent mandibular left second premolar.

After Exfoliation of the Primary Mandibular Left Second Molar,which Permanent