J 2010

Early morphogenesis of heterodont dentition in minipigs

ŠTEMBÍREK, Jan, Marcela BUCHTOVÁ, Tomáš KRÁL, Eva MATALOVÁ, Scott LOZANOFF et. al.

Základní údaje

Originální název

Early morphogenesis of heterodont dentition in minipigs

Autoři

ŠTEMBÍREK, Jan (203 Česká republika, garant, domácí), Marcela BUCHTOVÁ (203 Česká republika, domácí), Tomáš KRÁL (203 Česká republika, domácí), Eva MATALOVÁ (203 Česká republika, domácí), Scott LOZANOFF (840 Spojené státy) a Ivan MÍŠEK (203 Česká republika)

Vydání

EUROPEAN JOURNAL OF ORAL SCIENCES, 2010, 0909-8836

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30200 3.2 Clinical medicine

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.890

Kód RIV

RIV/00216224:14110/10:00055073

Organizační jednotka

Lékařská fakulta

UT WoS

000284319400002

Klíčová slova anglicky

dental lamina; epithelial pearls; odontogenesis; three-dimensional reconstruction

Příznaky

Mezinárodní význam
Změněno: 20. 4. 2012 12:10, Mgr. Michal Petr

Anotace

V originále

The minipig provides an excellent experimental model for tooth morphogenesis because its diphyodont and heterodont dentition resemble that of humans. However, little information is available on the processes of tooth development in the pig. The purpose of this study was to classify the early stages of odontogenesis in minipigs from the initiation of deciduous dentition to the late bell stage when the successional dental lamina begins to develop. To analyze the initiation of teeth anlagens and the structural changes of dental lamina, a three-dimensional (3D) analysis was performed. At the earliest stage, 3D reconstruction revealed a continuous dental lamina along the length of the jaw. Later, the dental lamina exhibited remarkable differences in depth, and the interdental lamina was shorter. The dental lamina grew into the mesenchyme in the lingual direction, and its inclined growth was underlined by asymmetrical cell proliferation. After the primary tooth germ reached the late bell stage, the dental lamina began to disintegrate and fragmentize. Some cells disappeared during the process of lamina degradation, while others remained in small islands known as epithelial pearls. The minipig can therefore, inter alia, be used as a model organism to study the fate of epithelial pearls from their initiation to their contribution to pathological structures, primarily because of the clinical significance of these epithelial rests.