Eruption times of the permanent teeth in 622 Ugandan children

Krumholt, L; Roed‐Petersen, B.; Pindborg, J. J.

doi:10.1016/0003-9969(71)90031-8

Cited by 68 publications

(37 citation statements)

References 13 publications

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“…Variations in culture, genetics, and environment make it difficult to correctly assess the role of nutrition in causing interpopulation differences. Flourine content and climate are also said to affect tooth emergence, but nothing conclusive has been deduced (Krumholt et al, 1971;Short, 1944;Adler and Godeny, 1952;Friedlaender and Bailit, 1969). The time of shedding or premature loss of deciduous teeth because of caries affects the emergence timing of their permanent replacements (Leslie, 1951;Niswander and Sujaku, 1960).…”

Section: Discussionmentioning

confidence: 94%

“…To compute the mean emergence time for each individual tooth, probit transformation was used (Fisher and Yates, 1948;Hayes and Mantel, 1958;Dahlberg and Menegaz-Bock, 1958;Houpt et al, 1967;Krumholt et al, 1971;Perreault et al, 1974;Mayhall et al, 1977Mayhall et al, , 1978. Accordingly, for each tooth the proportion of emergence at various age levels was transformed into probits.…”

Section: Methodsmentioning

confidence: 99%

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Age and sequence of permanent‐tooth emergence among Khasis

Jaswal¹

1983

American J Phys Anthropol

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The times and emergence of permanent teeth were ascertained by examining 1,263 Khasi children (615 males and 648 females), aged 5 to 15 years. Gingival emergence of the first 28 permanent teeth was recorded and the data were subjected to probit analysis to compute the mean (and standard deviation) emergence time of each individual tooth. Tooth emergence in females was markedly earlier than in males, and canines were most advanced in this respect. Females acquired all their teeth in shorter time span (5.5 years) than males (6.5 years). There were no decisive sex differences in the sequence of tooth emergence. The differences in emergence times between antimeres were statistically nonsignificant. The length of hiatus between two active emergence dental stages was shorter for the maxilla than for the mandible. It occurred between lateral incisor and first premolar in the maxilla of both the sexes, while in case of the mandible, it was spaced between lateral incisor and canine. The Khasis showed early emergence when compared to other populations. The findings support the earlier reports that the controls of deciduous-tooth emergence continue to play some part in emergence of the permanent dentition, especially the first permanent teeth that emerge.

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Section: Discussionmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Age and sequence of permanent‐tooth emergence among Khasis

Jaswal¹

1983

American J Phys Anthropol

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“…Chagula (1960) found this based on examination of East African males, where, as found by Suk (1919), third molar emergence began as early as 13 years of age and virtually all individuals had third molars emerged by 20 years of age. Others also have reported earlier tooth emergence in blacks than whites (Steggerda and Hill, 1942;Ferguson et al, 1957;Houpt et al, 1967;Krumholt et al, 1971;Garn et al, 1973;Hassanali, 1985;Otuyemi et al, 1997), but there are few data addressing differences in rates of tooth formation. Despite earlier claims, it was not until the work of Pelsmaekers et al (1997) and Merwin and Harris (1998) that high heritabilities were documented for the tempos of tooth formation.…”

Section: Tempos Of Growthmentioning

confidence: 91%

Mineralization of the mandibular third molar: A study of American blacks and whites

Harris

2006

American J Phys Anthropol

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The tempo of tooth mineralization is under significant genetic control, and the orderly progression of morphological changes-in concert with the long span during growth in which teeth form-makes "dental age" a useful measure of a person's degree of biological maturity. The third molar is of particular interest because (1) it is the last and most variable tooth to form and (2) it is the only tooth to complete formation after puberty, which has made it attractive in forensic and legal circles as an estimator of adulthood. Age standards are described here for mandibular third molar formation stages in a cross-sectional sample of 4,010 persons (age range: 3-25 years), with proportionate sample sizes of American blacks and whites and males and females. Formation was scored against the 15-grade ordinal scheme of Moorrees, and descriptive statistics were computed using proportional hazards survival analysis. Blacks achieved each formation stage significantly ahead of whites, but not in a uniform manner. Instead, there was an enhanced advancement in blacks during crown formation and during late stages of root formation. In both races formation proceeded faster in males, which is unique for the third molar, as prior studies suggest. Sample variance increases with the stage of formation, such that 95% confidence limits span 8 or more years for root formation stages. Consequently, the third molar provides a rough gauge of an individual's chronological age, but the considerable variability precludes any precise estimate, particularly in late adolescence where most forensic interest has focused.

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“…1.66 1.51 Lee et al, (1965) Hong Kong (low socioeconomic) Krumholt et al, (1971) Space availability is no doubt an important determinant of tooth emergence and axial alignment into adequate occlusal relationships. In the Warlpiri children, space availability is optimised by several mechanisms: retention of the deciduous precursors until natural exfoliation; a relative advantage in leeway space, that is, the size difference between deciduous canines and molars and the permanent successors, and a pattern of facial and alveolar growth that is highly coordinated with the processes of tooth migration and emergence.…”

Section: Tooth Exfoliation and Emergencementioning

confidence: 99%

Yuendumu legacy of a longitudinal growth study in Central Australia

Brown

Townsend

Pinkerton

et al. 2011

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The University of Adelaide Press publishes externally refereed scholarly books by staff of the University of Adelaide. It aims to maximise the accessibility to its best research by publishing works through the internet as free downloads and as high quality printed volumes on demand.Electronic Index: this book is available from the website as a down-loadable PDF with fully searchable text. Please use the electronic version to serve as the index.

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Eruption times of the permanent teeth in 622 Ugandan children

Cited by 68 publications

References 13 publications

Age and sequence of permanent‐tooth emergence among Khasis

Age and sequence of permanent‐tooth emergence among Khasis

Mineralization of the mandibular third molar: A study of American blacks and whites

Yuendumu legacy of a longitudinal growth study in Central Australia

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