Incisors of the Rabbit: Morphology, Histology, and Development

Abstract

A detailed morphologic and histologic de-scription of each deciduous and permanent incisor of the rabbit is presented, together with the chronology of their prenatal and postnatal development. The deciduous incisors are teeth of limited growth, but the permanent incisors grow continuously.The rabbit is used frequently in experimental investigations. A review of the literature has shown that the incisors of rabbits have been investigated by a number of observers with different results. The purpose of this investigation was to provide a comprehensive description of the morphology, development, and histology of the incisors of rabbits.Rabbits and hares originally were classified as rodents. But because of differences in the teeth, masticatory movements, and body build, zoologists now do not consider them to be related closely to the rodents; instead, they place them in a distinct order, Lagomorpha.

Histological Study on the Postnatal Development and Sequence of Eruption of the Mandibular Cheek-Teeth of Rabbits (<i>Oryctolagus cuniculus</i>)

“…As to the number of mandibular permanent cheek-teeth of rabbits, our observations were similar to those of OWEN (1845), ABBOT (1887), DEWEY (1907), CARADONNA (1909), TOMES (1914), LESBRE (1922, WIDDOWSON (1952), GRASSE and DEKEYSER (1955), PAGANO (1965), MILES and POOLE (1967), PEYER (1968), MAYER (1969), LISTGARTEN andKAMIN (1969), CRAIGIE (1970), VIEIRA (1971), APRILE et al (1971), andHIRSCHFELD et al (1973). We also agree with the term premolars for the two first cheek-teeth of the mandible (ROUSSEAU, 1839;OWEN.…”

Histological Study on the Postnatal Development and Sequence of Eruption of the Maxillary Cheek-Teeth of Rabbits (<i>Oryctolagus cuniculus</i>)

“…As to the number of permanent maxillary cheek-teeth of rabbits, our observations were similar to those of OWEN (1845), ABBOT (1887), DEWEY (1907), CARADONNA (1909), TOMES (1914), LESBRE (1922, WIDDOWSON (1952), GRASSE and DEKEYSER (1955), PAGANO (1965), MILES andPOOLE (1967), PEYER (1968), MAYER (1969), LISTGARTEN and KAMIN (1969), CRAIGIE (1970, VIEIRA (1971), ORR (1971, APRILE et al (1971) andHIRSCHFELD et al (1973). We also agree with the denomination of premolars to the three first cheek-teeth of the maxilla, suggested by ROUSSEAU (1839), OWEN (1845), DEWEY (1907), CARADONNA (1909, TOMES (1914), WIDDOWSON (1952), GRASSE and DEKEYSER (1955), PAGANO (1965), EHRMAN (1967), PEYER (1968), MAYER (1969), LISTGARTEN andKAMIN (1969), CRAIGIE (1970), VIEIRA (1971) andAPRILE et al (1971) since, as it occurs in human dentition, these teeth are the successors of the correspondent deciduous molars.…”

“…As well as ROUSSEAU (1839), OWEN (1845), CARADONNA (1909), LESBRE (1922), WIDDOWSON (1952), GRASSE and DEKEYSER (1955), PAGANO (1965), MAYER (1969), LISTGARTEN andKAMIN (1969) andHIRSCHFELD et al (1973) we have observed the presence of three deciduous maxillary molars for the hemi-arcade.…”

The cheek teeth of the rabbit: morphology, histology and development

“…such an investigation was undertaken. Previous publications reported on the incisors [Hirschfeld et al, 1973) and on the symphysis menti [Hirschfeld et al, 19771 of these animals; the present report concerns itself with the cheek teeth. Sev 1 The authors thank Mrs. M. Talbi.…”