Dental eruption in captive-bornCebus apella: From birth to 30 months old

This work reports on the ages of gingival eruption of deciduous and permanent teeth observed from the time of birth until 30 months old, captive-born individuals. All of the animals were born with the protrusive di₁ already through the gingival border. The dmp⁴ were the last teeth of the deciduous series which emerged at 24.5±3.11 weeks in the males and 27.8±2.95 weeks in the females. Significant sexual differences were found between the eruption period of the dpm₂, dmp⁴ (p<0.05), and dpm₄ (p<0.01), with the males being more precocious than the females. The first permanent tooth that emerged, usually, was the M₁ at 13.50±2.12 months in the males, and 14.00±0.82 months in the females. At 30 months of age, not one individual had replaced his deciduous canine or premolar teeth with the permanent ones, and, moreover, the M ₃ ³ had not yet emerged.