Showing papers in "American Journal of Orthodontics in 1969"

TL;DR: A structural method is described by which it may be possible to predict, from a single cephalogram, the course of rotation, where this feature is marked, and is based on information gained from implant studies of the remodeling process of the mandible during growth.

TL;DR: A brief review of the fundamental postulates of the method of functional cranial analysis is given, with particular emphasis on the definition of the functional matrix.

TL;DR: This classification of facial types may be used to distinguish skeletal from dental malocclusion, to evaluate physiologic differences, to explain variation in facial esthetics, to describe racial differences in facial proportions, to study hereditary transmission, and to predict facial growth.

TL;DR: It was evident from the observations of treated and untreated cases that posterior cross-bite is not self-correcting, that untreated deciduous-dentition cross- bite is followed by mixed-DentitionCross-bite, and that treatment of deciduously-denture cross- Bite favors development of normal occlusion in the mixed dentition.

TL;DR: In this paper, the authors focus on the role of the ontogenetic growth process in the development of a child's dental development and facial growt, and propose a framework of interceptive orthodontics to guide this process.

TL;DR: Research conducted to study the effects of an orthopedic treatment type of hyperpropulsion in young rat condylar cartilage is described, in which growth occurs mainly by mitoses of the young cells in the prechondroblastic zone and only to a minor degree by mitose of the differentiated cells of the chondroBlastic zone.

TL;DR: The morphogenetic role of two types of functional matrix-periosteal and capsular—in craniofacial growth is examined and the volumetric expansion of these capsular functional matrices is capable of accurate quantitative description.

TL;DR: In spite of all the advances in active treatment procedures, very few practitioners underrate the significance of retention, and many articles dealing with the retention problem have been published since before the beginning of this century.

TL;DR: Ninety-nine young male Sprague-Dawley rats were used in a study of dimensional and metabolic changes incident to the placement of elastic bands between the maxillary first and second molars.

TL;DR: The present state of the art does not permit formulation of strong theories regarding force and rate of tooth movement, so the most appropriate at this time postulates that higher forces per unit root area increase the rate of biologic response.

TL;DR: This study was undertaken because of the realization of the lack of knowledge concerning the stress-strain relationship in the periodontal membrane and the field of tooth mobility, which is closely associated with orthodontic treatment but essentially unexplored by orthmodontic research.

TL;DR: Because most present-day orthodontic procedures are performed on the outer (facial) surfaces of teeth, it was concluded that the ellipse is a better guide to arch form than the parabola.

TL;DR: T his report introduces and describes a method of cephalometric evaluation for in&viduals based on their own particular morphologic and morphogenetic facial patterns which is based on four basic morphologic concepts which are summarized below.

TL;DR: Cases were selected for a broad ANB range rather than a normal distribution, resulting in a high standard deviation, and the average changes noted in this study should not be used for making individual comparisons or predictions with any significant degree of accuracy.

TL;DR: The solution of this problem is similar to the solution of many of the problem cases in orthodontics and life itself, and the solution has to make compromises, and there are limitations, but on the whole the authors do fairly well with what they have to work with.

TL;DR: I hope that Figs.

TL;DR: In this paper, it was shown that the stability in overbite reduction with any appliance seems to depend upon a good anteroposterior incisor relationship at the end of treatment.

TL;DR: There has been an overconcentration on the effect of the soft tissues on malocclusion of the Teeth and the early writings of very able clinicians show a clear understanding of the problem.

TL;DR: The present study examined the relationship between force, vascular patency, and alveolar bone resorption to find out whether vascular integrity is an important aspect of membrane health and function and is, therefore, an important, if not decisive, factor in determining the pattern of bone Resorption that follows force application.

TL;DR: The indications and available techniques for surgical-orthodontic rehabilitation of patients with various types of malformation of the jaws, which include maldevelopment in the anteroposterior dimension, deviations from the midsagittal plane of the face, and open-bite deformities are reviewed.

TL;DR: Analysis of the data from this investigation suggest that the transsection of the free gingival fibers following orthodontic tooth rotation, coupled with a period of retention allowing for optimum biologic repair, can be a definite adjunct to retention.

TL;DR: The thesis here is that orthodontics has moved beyond the pragmatic and empirical level and has become a profound science and this evolution is traced through twelve major objectives that have emerged throughout Orthodontic history.