Centro Argentino de Primates, Buenos Aires.
Am J Primatol. 1985;8(3):195-204. doi: 10.1002/ajp.1350080302.
Squirrel monkeys, colony-born from Bolivian parents, were studied to establish the sequences and timing of eruption for deciduous and permanent teeth. Infants were born with a naked gingiva, and in only one monkey was di present at birth. The eruption of the lower deciduous teeth preceded their upper counterparts with the exception of di2, dc, and dpm2. No significant differences were found between the right and left quadrants of the mandible and maxilla. No significant sexual differences were found in the age of eruption. By the age of 14 weeks, all deciduous teeth had erupted. The sequence of eruption of the replacement teeth was different from that of milk teeth. The differences lie in the delayed eruption of canine teeth and in the inverted sequence, from the back to the front, of the premolar series. Significant sexual differences were found in total eruption (TE) for PM and I (P < 0.05) and highly significant differences (P < 0.01) in TE and initial eruption (IE) for C, females being more precocious than males. The age at which monkeys completed dental eruption was highly variable, 103-119 weeks for males and 89-112 weeks for females. Differences were found when our results were compared with those of Long and Cooper [1968] for Colombian squirrel monkeys.
研究了从玻利维亚父母那里出生的群体饲养的松鼠猴，以确定乳齿和恒齿的萌出顺序和时间。婴儿出生时牙龈裸露，只有一只猴子出生时就有。下颌和上颌的下乳齿先于上乳齿萌出，除了 di2、dc 和 dpm2 外。下颌和上颌的左右象限之间没有发现显著差异。萌出年龄在性别上没有显著差异。到 14 周龄时，所有的乳齿都已经萌出。恒齿的萌出顺序与乳齿不同。差异在于犬齿萌出延迟，以及前磨牙系列从后向前的倒序。在 PM 和 I 的总萌出（TE）（P < 0.05）和 C 的 TE 和初始萌出（IE）（P < 0.01）方面发现了显著的性别差异，女性比男性更早成熟。猴子完成牙齿萌出的年龄变化很大，雄性为 103-119 周，雌性为 89-112 周。当我们的结果与 Long 和 Cooper [1968] 对哥伦比亚松鼠猴的结果进行比较时，发现了差异。
