Mathematical modeling of palatal suture pattern formation: morphological differences between sagittal and palatal sutures

Nobuhide Shibusawa, Yoshie Endo, Naoki Morimoto, Ichiro Takahashi, Takashi Miura

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The median palatal suture serves as a growth center for the maxilla; inadequate growth at this site causes malocclusion and dental crowding. However, the pattern formation mechanism of palatal sutures is poorly understood compared with that of calvarial sutures such as the sagittal suture. In the present study, therefore, we compared the morphological characteristics of sagittal and palatal sutures in human bone specimens. We found that palatal suture width was narrower than sagittal suture width, and the interdigitation amplitude of the palatal suture was lower than that of the sagittal suture. These tendencies were also observed in the neonatal stage. However, such differences were not observed in other animals such as chimpanzees and mice. We also used a mathematical model to reproduce the differences between palatal and sagittal sutures. After an extensive parameter search, we found two conditions that could generate the difference in interdigitation amplitude and suture width: bone differentiation threshold [Formula: see text] and growth speed c. We discuss possible biological interpretations of the observed pattern difference and its cause.

Original languageEnglish
Pages (from-to)8995
Number of pages1
JournalScientific reports
Volume11
Issue number1
DOIs
Publication statusPublished - Apr 26 2021

All Science Journal Classification (ASJC) codes

  • General

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