The emergence date of the decidous maxillary 2nd molar is ______________?
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Answer: D. 28 months
Explanation
The deciduous maxillary second molar typically emerges into the oral cavity around twenty-eight months. Primary tooth eruption timelines follow a predictable biological sequence during early childhood development. By roughly thirty months of age, the entire primary dentition is usually fully erupted. Deciduous teeth begin calcifying prenatally and continue erupting through infancy and toddlerhood. Maxillary second primary molars mark the completion of the primary dental arch eruption phase. Pediatric dental charts use these average age ranges to evaluate normal developmental milestones.
Parents rely on eruption schedules to monitor their toddlers' dental health and dietary readiness. Delayed eruption can indicate systemic developmental issues or local physical obstructions. Proper care of primary molars is essential for maintaining space for permanent successors. Twenty months is too early for the typical emergence of the maxillary second primary molar. Eighteen months aligns more closely with the eruption of primary first molars or canines. Twenty-four months represents the earlier end of the normal window for second molar emergence.
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