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Since "miniature swine" are being used extensively as a research a dmal and since the literature concerning tooth eruption is not very precise, it has seemed advisable to observe and record tooth eruption in the "miniature swine" being used and to make comparisons with existing literature of domestic swine.A total of 55 pigs of the Pitman-Moore strain were observed weekly from birth until their dentition was complete at about 26 weeks. Lateral x-ray head plates and study models of both arches were made weekly for two members of the group. The study models and x-rays served for orientation and positive identification of teeth; and with the weekly observations constitute the data.Analysis of the data indicated there was no significant difference in the eruption time for any tooth due to the sex of the individual. A mean sequence of eruption for each arch was established for the group based on coefficients of concordance. There was no significant difference in sequence of eruption due to sex or litter.The eruption time and sequence noted for Pitman-Moore swine differed slightly from that recorded for domestic swine. The differences observed were slight and could be explained by the probably infrequent observations of domestic swine or small sample size.

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