Medical MCQ - Which primary tooth is generally accepted as the first to erupt, and at about what mean age?

Which primary tooth is generally accepted as the first to erupt, and at about what mean age?

Maxillary central incisor, 8 to 12 months.

Maxillary central incisor, 7 to 9 months.

Mandibular central incisor, 7 to 9 months.

Mandibular central incisor, 8 to 10 months.

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Correct Answer:

Mandibular central incisor, 7 to 9 months.

Description:

Eruption for the primary mandibular central incisor may be given as 6 months (Woelfel and Scheid, 2002); 6.5 months (Kraus et al., 1969); 7.5 months(Charlick et al.); or 8 (6 to 10) months (Ash and Nelson, 2003).

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