True or False: Maxillary primary teeth erupt before mandibular primary teeth on average.

True or False: Maxillary primary teeth erupt before mandibular primary teeth on average.

• A. True
• B. False
• C. Unknown
• D. Not applicable

Answer: (A)

Eruption timing in the primary dentition follows a fairly consistent pattern: the lower central incisors are usually the first to appear (around 6 months), with the upper central incisors coming in a bit later (roughly 8–12 months). Across the arches, the mandible tends to erupt before the maxilla. So, on average, mandibular primary teeth erupt before their maxillary counterparts. The statement that maxillary primary teeth erupt before mandibular primary teeth is false.

Eruption timing in the primary dentition follows a fairly consistent pattern: the lower central incisors are usually the first to appear (around 6 months), with the upper central incisors coming in a bit later (roughly 8–12 months). Across the arches, the mandible tends to erupt before the maxilla. So, on average, mandibular primary teeth erupt before their maxillary counterparts. The statement that maxillary primary teeth erupt before mandibular primary teeth is false.