Tooth size and morphology in a recent Australian Aboriginal population from Broadbeach, South East Queensland

Smith, Patricia; Brown, T.; Wood, W. Burton

doi:10.1002/ajpa.1330550403

Cited by 43 publications

(27 citation statements)

References 12 publications

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“…In addition to the samples previously described by the present author (T. Hanihara, 1989aHanihara, ,b,c, 1990aHanihara, ,b,c, 1991a, this study includes data for some groups of Australian Aborigines reported by various authors (K. Hanihara, 1976;Richards and Tefler, 1979;Smith et al, 1981;Townsend et al, 1990;Turner, 1990). A list of the samples recorded by the present author is given in Table 1.…”

Section: Methodsmentioning

confidence: 89%

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Negritos, Australian Aborigines, and the “proto‐sundadont” dental pattern: The basic populations in East Asia, V

Hanihara

1992

American J Phys Anthropol

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Five evolutionarily significant dental traits were identified from a B-square distance analysis of nine crown characters recorded for several populations of East Asia and Oceania. Intergroup variation in these traits distinguishes three major divisions of the Mongoloid dental complex: sundadonty, sinodonty, and the dental pattern of Australian Aborigines. The Australian crown features may be characterized as having high frequencies of evolutionarily conservative characters. Negritos, one of the probable representatives of indigenous inhabitants of Southeast Asia who may have shared a common ancestor with Australians, possess the more derived sundadont dental pattern. As far as the five crown traits treated here are concerned, Australian dental features may be described as conforming to a "proto-sundadont" dental pattern, applying Turner's terminology. This pattern may represent a microevolutionary step prior to the emergence of the sundadont and sinodont patterns.

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Section: Methodsmentioning

confidence: 89%

“…The left side of these figures is based on my own data. The right side gives the frequencies of the traits for Australian Aborigines reported by other workers (K. Hanihara, 1976;Richards and Tefler, 1979;Smith et al, 1981;Townsend et al, 1990;Turner, 1990).…”

Section: Balakrishnan and Sanghvimentioning

confidence: 89%

Negritos, Australian Aborigines, and the “proto‐sundadont” dental pattern: The basic populations in East Asia, V

Hanihara

1992

American J Phys Anthropol

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“…Another method, assuming the threshold mechanism, has dichotomized the non-metric dental traits into present and absent groups to view dental traits as entities. 20,31,32,[39][40][41][42][43] On the basis of these prior studies, dichotomization reduces possible classificat i o n bias and has another trait entity significance.…”

Section: Discussionmentioning

confidence: 99%

Ethnic dental analysis of shovel and Carabelli's traits in a Chinese population

Hsu

Tsai

Hsiao

et al. 1999

Australian Dental Journal

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Chinese populations differ from Caucasoids by having a high prevalence of shovel trait and a low prevalence of Carabelli's trait. This study was conducted to investigate the association between the shovel and the Carabelli's traits in a Chinese population. The research design investigated a Chinese population that resides in southern Taiwan. The ancestors of this Chinese population migrated to Taiwan from mainland China, mainly from Fukien and Kwangtung. The effects of sex and age on Carabelli's trait were controlled in this investigation, as was the association between tooth size and Carabelli's trait. Results show that males were more likely to have Carabelli's trait expressed on teeth than females. The buccolingual diameter of Carabelli's trait teeth was larger than that of teeth without the trait. After controlling for sex, age, and tooth size, the existence of the shovel trait increased the likelihood of having Carabelli's trait by a factor of five and a half, which is a significant effect.

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“…These figures are comparable to the frequency observed in the Japanese sample of the present study. Smith (1981) reported the frequency of this trait in a recent Australian aboriginal population as 64.0%. This figure, falling in the range of the Pacific populations shown in this study, may indicate close relationship between Australian Aboriginals and other Pacific populations.…”

Section: Discussionmentioning

confidence: 97%

Distribution of Tabercle-shaped Incisors in South Pacific Populations.

Kanazawa¹,

Shirono²,

Nakayama³

et al. 2001

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The basal tubercle and its related traits on the basal part of the lingual surface of maxillary central incisors vary in developmental grades. Although a welldeveloped basal tubercle was observed in fossil humans, much attention to this trait has not been paid in modern humans. We compared five morphological traits on the lingual surface of maxillary incisors among seven Pacific populations. Results showed that the South-Pacific populations examined in this study especially Fijians and New Guinea Highlanders had a well-developed basal tubercle, but with a low fre quencyof shovel-shaped incisors. On the contrary, Japanese and Kiribatian popula tionsof this study had a high frequency of shovel-shaped incisors, but a low fre quencyof tubercle-shaped incisors. It was suggested that the basal tubercle is one of the key dental traits in characterizing Pacific populations.

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Tooth size and morphology in a recent Australian Aboriginal population from Broadbeach, South East Queensland

Cited by 43 publications

References 12 publications

Negritos, Australian Aborigines, and the “proto‐sundadont” dental pattern: The basic populations in East Asia, V

Negritos, Australian Aborigines, and the “proto‐sundadont” dental pattern: The basic populations in East Asia, V

Ethnic dental analysis of shovel and Carabelli's traits in a Chinese population

Distribution of Tabercle-shaped Incisors in South Pacific Populations.

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