摘要
The sequence and chronology of deciduous tooth eruption and exfoliation in the rabbit was studied roentgenographically. In the mandible, two molars are erupted at 25 days gestation age. Root resorption of these teeth is apparent by the 7th postnatal day and both have been exfoliated by the 30th day. Development is more variable in the maxillary arch. Two molars and the second incisor tooth are erupted at 25 days gestation age and a third, more anteriorly placed, molar erupts by the 7th postnatal day. All of the maxillary teeth have been exfoliated by the 35th day. Transitory predecessors of the large permanent anterior incisor teeth in both jaws, reported in the literature, were not seen radiographically in our series. The deciduous dental formula, including the first incisors, may be stated: I(aba) C(oo) M(defef), with d the late erupting maxillary molar. The dentition of the rabbit differs from that of other commonly used laboratory animals in two important respects: (a) the deciduous dentition persists for about 1 month postnatally before being completely exfoliated; and (b) all of the permanent teeth are of the continuously erupting variety.
摘要译文
用X射线照相法研究兔子乳牙萌出和脱落的顺序和年代。在下颌骨中，两个臼齿在妊娠25天时爆发。这些牙齿的牙根吸收在出生后第7天是明显的，并且在第30天都已经剥离。上颌弓的发育变化较大。妊娠第5天，两个臼齿和第二个门牙在第7天出生时爆发，第三个，更先前放置的臼齿爆发。所有的上颌牙齿都在第35天脱落。在文献中报道，两个颌骨中的大型永久性前切牙的暂时前身，在我们的系列中没有放射线照片。乳牙牙齿配方，包括第一门牙，可以说明：I（aba）C（oo）M（瑕疵），d是晚期喷发的上颌磨牙。兔子在两个重要方面不同于其他常用的实验室动物：（a）落叶牙列在完全剥脱后在出生后持续约1个月;（b）所有恒牙都是连续喷发的。
S.L. Horowitz S. Scher. Deciduous dentition in the rabbit (Oryctolagus cuniculus)[J]. Archives of Oral Biology, 1973,18(4): 517-523