J 2010

Covariation between dental development and mandibular form changes: a study combining additive conjoint measurement and geometric morphometrics

COQUERELLE, M.; P. BAYLE; F.L. BOOKSTEIN; J. BRAGA; D.J. HALAZONETIS et. al.

Základní údaje

Originální název

Covariation between dental development and mandibular form changes: a study combining additive conjoint measurement and geometric morphometrics

Autoři

COQUERELLE, M. (250 Francie, garant); P. BAYLE (250 Francie); F.L. BOOKSTEIN (840 Spojené státy); J. BRAGA (250 Francie); D.J. HALAZONETIS (300 Řecko); Stanislav KATINA (703 Slovensko, domácí) a G.W. WEBER (40 Rakousko)

Vydání

Journal of Anthropological Sciences, Italy, Istituto Italiano di Antropologia, 2010, 1827-4765

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10103 Statistics and probability

Stát vydavatele

Itálie

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 2.000

Kód RIV

RIV/00216224:14310/10:00061089

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000279249000007

Klíčová slova anglicky

Dentition; Mandible; Modern humans; Growth; Covariation

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 20. 2. 2013 12:59, doc. PaedDr. RNDr. Stanislav Katina, Ph.D.

Anotace

V originále

Studies have suggested that dental development substantially influences the variation of mandibular morphology and growth in primates. As a contribution to the methodology of such studies, we introduce a novel approach to quantifying the covariation between teeth and mandible. This was done showing fluctuations in the magnitude of this covariation within a sample of modern human mandibles at different postnatal ages. Dense CTderived mandibular surface meshes of 73 females and 71 males, ranging in age from birth to adulthood, were processed by methods of geometric morphometrics. Each specimen’s deciduous and permanent teeth were rated for mineralization stage. Form-space principal component analysis of the morphometric data was used to produce a single metric variable that best explains mandibular-form variation. This variable was then used to quantify the developing teeth, all together, through the use of the additive conjoint measurement method. This new metric variable corresponds to the dental prediction of the mandibular-form variation. Finally, we examine the covariation of the two over the full range of mineralization stages. We found a strikingly tight association between mandibular form and dental maturation up through the full emergence of the deciduous dentition (about age 2 y.), followed by an equally striking decline in that association in later developmental stages, particularly for girls. The onset of the decline of the teeth-mandible relationship coincides with the onset time of the adult-like pattern of mastication and speech. The increasingly functional diversity may lead to more independence between dental development and mandibular growth than during the first two years.

Návaznosti

CZ.1.07/2.2.00/15.0203, interní kód MU
Název: Univerzitní výuka matematiky v měnícím se světě (Akronym: Univerzitní výuka matematiky)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Univerzitní výuka matematiky v měnícím se světě, 2.2 Vysokoškolské vzdělávání