Space, time, and space-time in craniofacial growth

Moss, Melvin L.; Skalak, Richard; Dasgupta, Gautam; Vilmann, H.

doi:10.1016/0002-9416(80)90151-7

Cited by 24 publications

(8 citation statements)

References 31 publications

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“…It should be noted that these data describe alterations in specific craniofacial distances and angles. They do not describe the general shape change or deformation coherent in this altered pattern of growth (Bookstein, 1982(Bookstein, , 1983; Moss et al, 1980). Cheverud et al (19831, however, found linear measures to yield generally similar results to three-dimensional analyses of shape using finite-element methods.…”

Section: Craniofacial Growthmentioning

confidence: 61%

Restricted growth at the frontonasal suture: Alterations in craniofacial growth in rabbits

et al. 1987

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Apposition of bone at the sutural margin is generally thought to be a compensatory adjustment to growing soft-tissue organs such as the brain or eyes within the skull. The frontonasal suture which is located at the interface between the cranial and facial skeletons is a site of extremely active growth in the young rabbit. Recently, we showed that premature closure of a cranial suture, the coronal suture, can alter the growth not only at the adjacent frontonasal suture but also of the basicranium and midface. This study examines the effects of restricted growth at the frontonasal suture on both growth at adjacent cranial sutures and linear growth of the basicranium and midface. Thirty newborn New Zealand White rabbits were subdivided into experimental and sham-treated groups of equal size and distribution for sex and birth weight. At 9 days of age, the frontonasal suture of each experimental animal was immobilized by bilateral application of methyl-cyanoacrylate adhesive across the frontonasal suture. Growth and morphometric changes were monitored by radiocephalometric methods through 120 days of age by bilateral implantation of radiopague markers on each side of frontonasal, coronal, and anterior lambdoid sutures. Results indicate that restricted growth at the frontonasal suture results not only in a significant shortening of the midface but also in significant decreases in growth at the coronal and internasal sutures. Growth at the interfrontal and sagittal sutures is increased. Furthermore, growth at the anterior portion of the nasal bones is significantly increased, thereby offsetting a portion of the decreased nasal bone length resulting from frontonasal restriction.

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Section: Craniofacial Growthmentioning

confidence: 61%

Restricted growth at the frontonasal suture: Alterations in craniofacial growth in rabbits

et al. 1987

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“…It is well-established that during growth, the mandible follows a curvilinear trajectory both in humans (Björk, 1955(Björk, , 1963Moss and Salentijn, 1970;Ricketts, 1972;Lavergne and Gasson, 1976;Kuroda et al, 1979;Björk and Skieller, 1983;Dibetts, 1985) and other primates (Moss et al, 1980;Leth Nielsen et al, 1989) (Fig. 4).…”

Section: Mandibular Characters In a Developmental Contextmentioning

confidence: 98%

“…In relation to this, the soft tissues are an important factor in mandibular growth. Björk and Skieller (1983) and Björk (1991) proposed that the mandibular shape should be understood in the dynamic of two distinct systems: the growth of the hard parts; and the growth of the soft tissues (for the functional matrix concept in which soft tissues and functional spaces play a fundamental role in craniofacial morphogenesis, see Moss, 1968;Moss and Young, 1969;Moss et al, 1980). Thus, the mandible normally rotates steadily forward relative to the anterior cranial base during growth, but the soft tissues show a smaller degree of rotation.…”

Section: Mandibular Characters In a Developmental Contextmentioning

confidence: 99%

Occurrence of Neanderthal features in mandibles from the Atapuerca-SH site

Rosas

2001

Am. J. Phys. Anthropol.

103

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Analysis of variation and distribution of evolutionary novelties is meaningful in understanding evolutionary processes. The mandible, as a morphological complex, comprises a large number of derived Neanderthal features. The present study investigates whether the features usually considered as European lineage apomorphies evolved independently; the occurrence of these features is studied in the mandibles from the Sima de los Huesos (SH) site (Atapuerca, Spain). For comparative purposes, a large sample of Neanderthal mandibles as well as older fossil Homo specimens have been used for the study. Chi-square tests were employed to test for independence. The SH mandibles present a set of features that clearly show the basic architecture of the Neanderthal mandible. A highly significant association is detected in the variation of the position of the mental foramen, the lateral prominence, and the anterior marginal tubercle, as well as in the development of retromolar space. However, a much weaker association is detected in the features of the internal aspect of the mandible, with a few exceptions. Features of the external aspect of the mandible occur chronologically earlier than those observed in the internal aspect. The hypothesis that two distinct and consecutive morphological processes have driven the emergence of the European lineage throughout the Middle Pleistocene is proposed. A first transformation affects the mandible by means of backwards displacement of the structures located at the external aspect, as well as the position of the condyle. A second process would modify the features of the internal aspect of the mandible, in which the relief of the masseteric and pterygoid fossae are affected, in association with a spatial rearrangement of the corpus and ramus. Analyzed individually, some of the considered features may be questioned as Neanderthal apomorphies (Trinkaus,1993; Franciscus and Trinkaus, 995); however, the joint occurrence of many of them suggests that the complex is an evolutionary novelty.

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“…Regions with little change of shape may then undergo irrelevant apparent translations or rotations, and there is no objective way to select an optimum display procedure to minimize or eliminate these effects. It is now over 20 years (Bookstein, 1978, 1982, 1983; Moyers & Bookstein, 1979; Moss et al ., 1980) since alternative methods of analysis specifically designed to overcome these weaknesses were first proposed. These succeeded in producing quantitative results that were independent of the local reference frame.…”

Section: Introductionmentioning

confidence: 99%

Detection of shape changes in biological features *

Kume

2000

Journal of Microscopy

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SummaryThe question of analysing shape changes over time, such as during growth and during the progress of disease, is an important fundamental issue for many applications. Recent mathematical developments in the understanding of the detailed structure of shape spaces have made possible the quantitative study of shape variation. In this paper, we combine the classical multidimensional scaling technique with knowledge of the geometry of shape spaces to examine the role played by the geodesics in shape spaces. We present some promising early results answering questions about shape changes over time.

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Space, time, and space-time in craniofacial growth

Cited by 24 publications

References 31 publications

Restricted growth at the frontonasal suture: Alterations in craniofacial growth in rabbits

Restricted growth at the frontonasal suture: Alterations in craniofacial growth in rabbits

Occurrence of Neanderthal features in mandibles from the Atapuerca-SH site

Detection of shape changes in biological features *

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