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[...]... Helsinki (Finland) E-Mail David .Rice@ helsinki.fi Developmental Anatomy of CraniofacialSutures 21 Rice DP (ed): CraniofacialSuturesDevelopment, Disease andTreatment Front Oral Biol Basel, Karger, 2008, vol 12, pp 22–40 Locate, Condense, Differentiate, Grow and Confront: Developmental Mechanisms Controlling Intramembranous Bone and Suture Formation and Function David P Rice, Ritva Rice Departments... disorders Finally, there is a review of current treatment philosophies and a look to the future David P Rice, Helsinki September 2007 XI Rice DP (ed): CraniofacialSuturesDevelopment, Disease andTreatment Front Oral Biol Basel, Karger, 2008, vol 12, pp 1–21 Developmental Anatomy of CraniofacialSutures David P Rice Departments of Orthodontics and Craniofacial Development, King’s College London, London,... 100 m (b) Images reproduced from Jiang et al [8] and Morriss-Kay and Wilkie [11] with kind permission of the authors and Elsevier Science and The Anatomical Society of Great Britain and Ireland Developmental Anatomy of CraniofacialSutures 5 infected with -galactosidase-encoding replication-incompetent retroviruses, Noden [12], Evans and Noden [13] and Le Lievre [14] found conflicting results that... (white arrows), and the meninges under the frontal and parietal bones (arrowheads) Also the internasal, frontonasal, interfrontal, coronal suturesand most of the sagittal suture (black arrow) are X-gal-positive b The boundary of neural crest and mesodermal-derived calvarial tissue at the coronal suture Section through the coronal suture of a Wnt1-Cre/R26R head stained with X-gal (blue-green) and fast red... temporal bone; zts ϭ zygomaticotemporal suture Developmental Anatomy of CraniofacialSutures 3 a b c Fig 3 Tissue origin of the craniofacial bones Mouse head E17.5 a Wnt1-Cre/R26R head stained with X-gal (blue-green) to show transgene-expressing neural crest-derived tissue and alizarin red to show bone mineral The facial bones andsutures express the transgene as do the frontal bones, the alisphenoid,... laterally to the mandibular teeth they will occlude more medially resulting in dental cross-bite (fig 7) Under normal conditions, mechanical stress on craniofacialsutures results from masticatory forces Sutures are specially organized to resist strain, notably Developmental Anatomy of CraniofacialSutures 17 through the arrangement and structure of sutural fibers Although calvarial sutures are not as... Function David P Rice, Ritva Rice Departments of Orthodontics and Craniofacial Development, King’s College London, London, UK; Department of Orthodontics, University of Helsinki, Helsinki, Finland Abstract The key mechanisms controlling where and when craniofacial bones and hence sutures form are discussed in this review These include the formation and growth of skeletogenic condensations, tissue to tissue... condensations and therefore have a fundamental influence on axial and appendicular skeletogenesis [41, 42] Hox genes are not expressed in the major part of the craniofacial region Indeed, for the majority of the craniofacial skeleton it is essential to stay Hox-negative during development [43] Ectopic expression of Hoxa2 in the craniofacial mesenchyme in mice results in an inhibition of Rice 10 craniofacial. .. adjustments in the size, shape and spatial orientation of the contiguous parts of the craniofacial skeleton during development and growth [24, 60] Sutures can also adapt to pathological disturbances such as hydrocephalus, in which the calvaria expands secondary to an increased intracranial pressure Thus, the growth of the calvaria and the underlying brain are highly co-ordinated Sutures are tightly regulated...Preface Craniofacialsutures are important sites of facial and calvarial bone growth Sutures therefore contribute to differences in the shape, size and character of our face and skull and as a result in the way in which we perceive each other Suture development, which occurs mainly during embryogenesis, has to be carefully synchronized . Cataloging-in-Publication Data Craniofacial sutures : development, disease, and treatment / volume editor, David P. Rice. p. ; cm. – (Frontiers of oral biology, ISSN 142 0-2 433 : v. 12) Includes bibliographical. reproduced from Jiang et al. [8] and Morriss-Kay and Wilkie [11] with kind permission of the authors and Elsevier Science and The Anatomical Society of Great Britain and Ireland. Rice 6 infected. disorders. Finally, there is a review of current treatment philosophies and a look to the future. David P. Rice, Helsinki September 2007 Rice DP (ed): Craniofacial Sutures. Development, Disease and