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Here, dental and midfacial variables were studied in a perinatal sample of four anthropoid primates, including three callitrichines (<jats:italic>Leontopithecus<\/jats:italic>, <jats:italic>Saguinus<\/jats:italic>, and <jats:italic>Callithrix<\/jats:italic>) and <jats:italic>Saimiri boliviensis<\/jats:italic>. In the latter species, the maxillary recess (the ontogenetic precursor to a \u201ctrue\u201d maxillary sinus) does not undergo secondary pneumatization. Using histological methods and micro\u2010computed tomography, midfacial and dental dimensions and radiographic hydroxyapatite density of tooth cusps were measured. The distribution of osteoclasts and osteoblasts was also documented. Kruskal\u2013Wallis's one\u2010way analysis of variance tests indicates significant (<jats:italic>P<\/jats:italic> &lt; 0.05) differences among groups for dental and midfacial measurements. In particular, the posterior maxillary dentition is relatively larger and more mineralized in <jats:italic>Saimiri<\/jats:italic> compared to the callitrichines. At posterior dental levels, <jats:italic>Saimiri<\/jats:italic> has the lowest palatonasal index [interdental (palatal) width\/width of the nasal cavity] and highest bizygomatic\u2013interorbital index. Distribution of osteoclasts indicates that the inferomedial surfaces of the orbits are resorptive in perinatal <jats:italic>Saimiri<\/jats:italic>, whereas, in all callitrichines, these surfaces are depository. Taken together, these findings suggest that pneumatization in <jats:italic>Saimiri<\/jats:italic> 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. \u00a9 2010 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/ajpa.21421","type":"journal-article","created":{"date-parts":[[2010,11,29]],"date-time":"2010-11-29T20:54:57Z","timestamp":1291064097000},"page":"392-410","source":"Crossref","is-referenced-by-count":25,"title":["Comparative microcomputed tomography and histological study of maxillary pneumatization in four species of new world monkeys: The perinatal period"],"prefix":"10.1002","volume":"144","author":[{"given":"Timothy D.","family":"Smith","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James B.","family":"Rossie","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregory M.","family":"Cooper","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robin M.","family":"Schmieg","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher J.","family":"Bonar","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mark P.","family":"Mooney","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael I.","family":"Siegel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2010,11,29]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.2500\/ajr.2008.22.3130"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajpa.1330870107"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/ar.a.20124"},{"key":"e_1_2_7_5_1","volume-title":"Essentials of facial growth","author":"Enlow D","year":"1996"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.10511"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajpa.1330970409"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-7580.1997.19040533.x"},{"key":"e_1_2_7_9_1","first-page":"133","volume-title":"The paranasal sinuses of higher primates","author":"Koppe T","year":"1999"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.10303"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0940-9602(99)80097-1"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.2535\/ofaj1936.72.1_37"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.2535\/ofaj1936.72.6_297"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.2535\/ofaj1936.71.5_311"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajp.20012"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511542589.006"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-0185(199606)245:2<374::AID-AR18>3.0.CO;2-M"},{"key":"e_1_2_7_18_1","first-page":"151","article-title":"Functional cranial analysis of the human maxillary bone","volume":"37","author":"Moss M","year":"1967","journal-title":"Angl Orthod"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajpa.1330180406"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhevol.2005.05.001"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1177\/000348942203100416"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1127\/anthranz\/60\/2002\/67"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1006\/jhev.1999.0357"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/evan.20036"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1006\/jhev.1995.1057"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.10263"},{"key":"e_1_2_7_27_1","unstructured":"RossieJB.2003.Ontogeny homology and phylogenetic significance of anthropoid paranasal sinuses Ph.D. Thesis Yale University. 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