Generational Differences in Size and Morphology of Tooth Crowns in the Young Modern Japanese.

Suzuki, Naohide

doi:10.1537/ase.101.405

Cited by 15 publications

(15 citation statements)

References 13 publications

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“…This author's study on the secular changes of dental morphology (Matsumura, 1994) demonstrated that in the mainland Japanese the tooth size proportions and frequencies of many nonmetric traits had been mostly stable over the 2,000 years from the Yayoi period to the present time, while the overall tooth sizes did not show such stability in this microevolutional lineage. As has been stated by several authors (Brace, 1963;Goose, 1967;Bowden and Goose, 1969;Potter et al, 1968;Brace and Mahler, 1971;LeBlance and Black, 1974;Kirveskari et al, 1978;Townsend and Brown, 1978;Kolakowski and Bailit, 1981;Brace et al, 1991;Suzuki, N. 1993), overall tooth size may be rather changeable due to the cultural, nutritional or somewhat environmental backgrounds.…”

Section: Discussionmentioning

confidence: 90%

Dental Characteristics Affinities of the Prehistoric to Modern Japanese with the East Asians, American Natives and Australo-Melanesians.

Matsumura

1995

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Section: Discussionmentioning

confidence: 90%

Dental Characteristics Affinities of the Prehistoric to Modern Japanese with the East Asians, American Natives and Australo-Melanesians.

Matsumura

1995

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“…Next, as far as metric traits are concerned, secular trends in tooth size originating from nutritional status have been demonstrated in populations around the world (Goose, 1967;Kirveskari et al, 1978;Suzuki, 1993). Proteins are heavily involved in the formation of teeth, and protein uptake in the formation period of the dental germ may strongly influence tooth size (Suzuki, 1993).…”

Section: Discussionmentioning

confidence: 99%

“…Proteins are heavily involved in the formation of teeth, and protein uptake in the formation period of the dental germ may strongly influence tooth size (Suzuki, 1993). Garn et al (1979) found a clear relationship between children's crown diameters and the mother's health during pregnancy.…”

Section: Discussionmentioning

confidence: 99%

Tooth size of the medieval period people of Japan

Nagaoka

Hirata

2006

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The aim of this study is to clarify the odontometric features of the people in the medieval period in Japan. We investigated the human skeletal remains of the Yuigahama-minami, Chusei Shudan Bochi, Seiyokan, and Gokurakuji sites; this is the first study to address the odontometry of multiple medieval skeletal populations of Kamakura city. Dental crown measurements were statistically compared with those of the other population samples dating from prehistoric to modern times. The results of our multivariate odontometric study allow some tentative perspectives regarding the relationship between the medieval and other prehistoric and historic Japanese series. First, the medieval series were found to have an odontometric pattern close to the Yayoi, Kofun, Edo, and modern series, and well differentiated from that of the Jomon and Ainu series. Second, the majority of the medieval series tended to have smaller tooth size than the post-Jomon series of the Yayoi, Kofun, Edo, and modern periods. We suggest that the small tooth size of the Kamakura medieval series may be related to nonlineage factors, and would not contradict their similarity in odontometric pattern with the Yayoi, Kofun, Edo, and modern series.

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“…reported the Kamakura Medieval people have the smallest tooth size among the post-Jomon (Yayoi, Kofun, Edo, and modern period) people of mainland Japan, and suggested that this may be the result of diet (i.e. malnutrition) based on the observation that tooth size varies according to nutrition and hygiene (Suzuki 1993). Tables 2,3, and 4 and Figures 3 and 4 show the calibrated 14 C results for bone gelatin samples from humans, terrestrial herbivores (cow and horse), terrestrial carnivore (dog), and marine mammals (dolphin and whale) excavated from the Yuigahama-minami and Chusei-Shudan-Bochi sites.…”

Section: Investigating Diet With 5 13 C and δ 15 ν Valuesmentioning

confidence: 99%

¹⁴C Dating Human Skeletons from Medieval Archaelogical Sites in Kamakura, Japan: Were they Victims of Nitta Yoshisada's Attack?

et al. 2012

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ABSTRACT. We investigated the radiocarbon ages and carbon and nitrogen isotope ratios of human skeletal remains from burials at the Yuigahama-minami and Chusei-Shudan-Bochi sites in the Yuigahama area (Kamakura, Japan), which we believe are associated with the great attack on Kamakura by Nitta Yoshisada in AD 1333. The human bones produced enriched 5 13 C and δ 15 Ν values that could be affected by consumption of protein from marine fish and/or mammals with high ô 13 C and δ 15 Ν, and therefore older apparent 14 C ages. We thus estimated the marine reservoir effect on human skeletons to determine their true ages. The IsoSource isotope mixing model was employed for reconstructing percentages of marine protein in the human diet, and calibrated calendar dates for the ,4 C ages were calculated using the marine percentages. At the Yuigahama-minami site, most skeletons from individual burials now date to the last phase of the Kamakura period or the early part of the Muromachi period, while skeletons from mixed human-animal multiple burials date to the latter part of the Kamakura period. The humans from the individual burials, consisting of normal ratios of adult males, could have died a natural death, though the site could also have been used to inter victims of the battle of 1333. The humans from mixed humananimal burials, consisting of a high proportion of infants, were not victims of the 1333 battle, but the site may have been used to inter victims of the Kamakura earthquake in 1293, which resulted in a catastrophic tsunami. On the other hand, the skeletons from multiple burials in the Chusei-Shudan-Bochi site all date to the middle Kamakura period. Coupled with the fact that most humans in the site are male but show no evidence of injuries by sword cuts, it is likely that burials of the Chusei-ShudanBochi site could have been a collective interment following the Jinji earthquake in 1241, the Shoka earthquake in 1257, or the Shoka famine in 1258 in the middle Kamakura period. The results of this study indicate that humans from burials in the Yuigahama region were not necessarily victims of the attack by Nitta Yoshisada on Kamakura, but instead were likely victims of natural disasters such as large earthquakes and severe famines, which often occurred in the middle Kamakura period.

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Generational Differences in Size and Morphology of Tooth Crowns in the Young Modern Japanese.

Cited by 15 publications

References 13 publications

Dental Characteristics Affinities of the Prehistoric to Modern Japanese with the East Asians, American Natives and Australo-Melanesians.

Dental Characteristics Affinities of the Prehistoric to Modern Japanese with the East Asians, American Natives and Australo-Melanesians.

Tooth size of the medieval period people of Japan

¹⁴C Dating Human Skeletons from Medieval Archaelogical Sites in Kamakura, Japan: Were they Victims of Nitta Yoshisada's Attack?

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Generational Differences in Size and Morphology of Tooth Crowns in the Young Modern Japanese.

Cited by 15 publications

References 13 publications

Dental Characteristics Affinities of the Prehistoric to Modern Japanese with the East Asians, American Natives and Australo-Melanesians.

Dental Characteristics Affinities of the Prehistoric to Modern Japanese with the East Asians, American Natives and Australo-Melanesians.

Tooth size of the medieval period people of Japan

14C Dating Human Skeletons from Medieval Archaelogical Sites in Kamakura, Japan: Were they Victims of Nitta Yoshisada's Attack?

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¹⁴C Dating Human Skeletons from Medieval Archaelogical Sites in Kamakura, Japan: Were they Victims of Nitta Yoshisada's Attack?