The Development of the Teeth and Jaws of the Albino Mouse

Gaunt, W.A.

doi:10.1159/000142542

Cited by 18 publications

(15 citation statements)

References 6 publications

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“…23 One correlation with epithelial morphogenesis is the changing patterns of mesenchymal cell aggregation. One glycoprotein associated with time-and position-restricted patterns of mesenchymal cell aggregation is cytotactin (also termed tenascin).…”

Section: Substrate Adhesion Molecules (Sams) During Odontogenesismentioning

confidence: 99%

Molecular Determinants of Tooth Development: A Review

Slavkin

1990

Critical Reviews in Oral Biology & Medicine

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Section: Substrate Adhesion Molecules (Sams) During Odontogenesismentioning

confidence: 99%

Molecular Determinants of Tooth Development: A Review

Slavkin

1990

Critical Reviews in Oral Biology & Medicine

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“…The growth changes in the lower jaw of the mouse are similar to those in the hum an jaw as described by Hunter [1771], Heitzmann and Boedecker [1895], Low [ 1905[, Gantz [1922, 1Vissmer [1927], Symons [1951] and Scott 11951 a, b] but it m ust be em phasised th a t the essential differences are associated with the greater extent of the alveolar element and the relatively greater ram al com ponent in the hum an jaw and also with the presence of the large diastem a in the rodent jaw . As might be anticipated the degree of resemblance in grow th changes between the mouse and the ham ster (Gaunt [1961]) is very high. It is of interest th at Wissmer [1927] gives pictures of superimposed profiles of the hum an foetal mandible with the m ental foram en as the reference point: he finds this point to be relatively static up to 9 m onths in utero.…”

Section: Changes In Form O F the Lower Jaw During Ontogenymentioning

confidence: 85%

“…Hence, any de scription of the m orphogenetic changes of these bones m ust of neces sity encompass changes of the palate and indeed of the entire face. It will be recalled from another account (Gaunt [1964]) th at the prem axillae develop first in tim e: within a further period of 24 hours the maxillae develop in close association with the m axillary nerve on each side of the head. The palatal processes of both these bones are rather slower to approach the mid-line of the head, only coming into close proxim ity at about the time of birth, so th a t in the early stages the roof of the buccal cavity is m em branous.…”

Section: Changes In Form O F the Lower Jaw During Ontogenymentioning

confidence: 98%

“…An account has been given elsewhere of the developm ent of the jaw s in ihe mouse (Gaunt [1964]) with particular em phasis on the tooth-jaw relationships: only certain features will be recalled here in so far as they relate to the present study.…”

Section: Changes In Form O F the Lower Jaw During Ontogenymentioning

confidence: 99%

“…As explained above it has been possible to extract certain data from reconstructions of the facial skeleton of another account (Gaunt [1964]). These data con stitute figs.…”

Section: Changes In Form O F the Lower Jaw During Ontogenymentioning

confidence: 99%

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Changes in the Form of the Jaws of the Albino Mouse During Ontogeny

Wa¹

1964

Cells Tissues Organs

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On heterochrony in heterodonty: A review of some problems in tooth morphogenesis and evolution

Keene

1991

Am. J. Phys. Anthropol.

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Although initial discussions and speculations about the role of acceleration and retardation in the relative timing of ontogenetic events associated with dental evolution, dental development, and heterodonty can be found in the literature as early as a century ago, morphogenetic processes and mechanisms remain elusive and formal heterochronic and mechanistic models employing mathematical principles, especially those that are testable, have only recently begun to appear. Even the seemingly simplest of developmental problems, such as primate canine tooth size variation in ontogeny and phylogeny, continue to be the subject of much controversy and debate. At least part of the problem, a s well as its solution, may be found in the uniqueness of the process of amelogenesis during tooth formation and the dichotomy between inner enamel epithelium growth parameters and those dealing with ameloblast secretory functions, including duration and rate. Certain aspects of the life cycle of the inner enamel epithelium lend themselves to mathematical analysis and can be visualized graphically a s a morphogenetic triangle, which illustrates the relationship between proliferation and differentiation during tooth crown formation. Components of the triangle model include the times of onset of proliferation (P), onset of differentiation (D), and crown completion (C), which provide the basis for calculations of rate of proliferation (Rp) and rate of differentiation (R,) during the attainment of final crown height measured a t the dentinoenamel junction. Thus, tooth crown size is partially controlled by a "framework" established by the proliferating cells of the inner enamel epithelium, and partially by the variable thickness of enamel matrix produced by functional ameloblasts and laid down on the "framework" following their terminal differentiation. From a developmental point of view, it would seem appropriate to consider tooth size (inner enamel epithelium, morphogenetic triangle) and enamel thickness (secretory ameloblasts) as independent parameters of growth that contribute differentially to external crown dimensions. Morphogenetic triangle parameters that are actually related to real ontogenetic events during tooth formation facilitate heterochronic analysis and modelling and provide a theoretical basis for a broader understanding of basic mechanisms involved in certain troublesome size and shape problems in dental morphogenesis and evolution.Because of their great durability and the wealth of developmental and morphologic information they contain at the gross and microscopic levels (Sarnat and 0 1991 Wiley-Liss, Inc.

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The Development of the Teeth and Jaws of the Albino Mouse

Cited by 18 publications

References 6 publications

Molecular Determinants of Tooth Development: A Review

Molecular Determinants of Tooth Development: A Review

Changes in the Form of the Jaws of the Albino Mouse During Ontogeny

On heterochrony in heterodonty: A review of some problems in tooth morphogenesis and evolution

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