Comparative microcomputed tomography and histological study of maxillary pneumatization in four species of new world monkeys

The perinatal period

Dados Bibliográficos

ID8320754
AutoresTimothy D Smith (0000-0002-9697-2095), J B Rossie (0000-0001-7453-8370, Stony Brook University), Gregory M Cooper (0000-0001-5509-9923, University of Pittsburgh), Robin M Schmieg (Slippery Rock University), Christopher J Bonar (0009-0001-7271-5828, Cleveland Metroparks Zoo), Mark P Mooney (0000-0002-1943-9967, University of Pittsburgh), Michael I Siegel (0000-0002-1483-5530, University of Pittsburgh)
Ano2011
Volume144
Fascículo3
Páginas392-410
Data de publicação2011-03-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoAmerican Journal of Physical Anthropology (JOURNAL)
Identificadores do periódicoISSN: 0002-9483 • E-ISSN: 1096-8644
EditoraWiley (PUBLISHER • GB)
DOI10.1002/ajpa.21421
PMID21302266
OpenAlexW2126437069
IdiomaEN
Citações recebidas3
Referências citadas39

In anthropoid primates, it has been hypothesized that the magnitude of maxillary sinus growth is influenced by adjacent dental and soft tissue matrices. Relatively, little comparative evidence exists for the perinatal period when secondary pneumatization is at its earliest stages in some primates. Here, dental and midfacial variables were studied in a perinatal sample of four anthropoid primates, including three callitrichines ( Leontopithecus , Saguinus , and Callithrix ) and Saimiri boliviensis . In the latter species, the maxillary recess (the ontogenetic precursor to a “true” maxillary sinus) does not undergo secondary pneumatization. Using histological methods and micro‐computed tomography, midfacial and dental dimensions and radiographic hydroxyapatite density of tooth cusps were measured. The distribution of osteoclasts and osteoblasts was also documented. Kruskal–Wallis's one‐way analysis of variance tests indicates significant ( P Saimiri compared to the callitrichines. At posterior dental levels, Saimiri has the lowest palatonasal index [interdental (palatal) width/width of the nasal cavity] and highest bizygomatic–interorbital index. Distribution of osteoclasts indicates that the inferomedial surfaces of the orbits are resorptive in perinatal Saimiri , whereas, in all callitrichines, these surfaces are depository. Taken together, these findings suggest that pneumatization in Saimiri is suppressed by an inward growth trajectory of the orbits, relatively large posterior dentition, and a correspondingly compressed nasal region. Am J Phys Anthropol, 2011. © 2010 Wiley‐Liss, Inc

Biology · Callithrix · Dentition · Maxillary first molar · Maxillary sinus · Molar · Old World · Primate · Zoology · Anatomy · dental development and anomalies · Dentistry · Medicine · Orthodontics and Dentofacial Orthopedics · Paleontology · Sinusitis and nasal conditions