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The case of a young boy is presented in whom a dilacerated central incisor was surgically removed and the reduced space for this tooth in the arch opened orthodontically. The crown of the excised deformed tooth was bonded to the two adjacent teeth by means of the acid-etch technique. 相似文献
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Six thousand nine hundred and nineteen temporomandibular joint sounds made by 110 patients in 2200 opening- and-closing cycles were classified and analysed. On average there were three TMJ sounds in each cycle. Fifty-nine per cent of the sounds occurred on opening and 41 per cent on closing. Only 27 per cent of the sounds were clicks and 73 per cent were crepitus. The average duration of hard TMJ clicks, excluding background crepitus, was 10 ms and the average duration of soft clicks was 14 ms. Eighty-six per cent of all the sounds (clicks and crepitus) were soft and 14 per cent were hard. Ninety-four of the patients were studied more closely: 17 had only opening clicks, 7 had only closing clicks and 43 had reciprocal sounds; 28 had groups of 20 consecutive sounds, but in only 5 did they occur in both opening and closing. The significance of these findings is discussed. 相似文献
16.
Conventional dentures constructed for edentulous patients who have undergone maxillectomy have serious deficiencies, not the least being the lack of employable support and retention. This paper describes a method for the construction of a prosthesis which incorporates a removable flexible obturator. This technique overcomes the anatomical problems which limit conventional restorations, and provides dentures which are retentive and stable in function and comfortable for the patient to wear. 相似文献
17.
M.Elisabeth Corbett DDS LDS RCS J.L. Hardwick PhD MDS MSc FDS RCS 《Journal of dentistry》1981,9(4):302-310
Investigations were carried out into dental diseases in remains exhumed from two nineteenth-century Lancashire burial grounds. The methods used and the difficulties encountered are reported for the guidance of those undertaking similar studies. References to published findings are given. 相似文献
18.
Professor Barry C. Leighton M.D.S. F.D.S.R.C.P.S. H.D.D. D.Orth. RCS. 《Journal of orofacial orthopedics》1978,39(3):181-195
Zusammenfassung Die Arbeit versucht, nicht nur die Veränderungen darzustellen, welche von der Geburt bis zum Erwachsenenalter hinsichtlich Morphologie, Einordnung der Zähne und Lageverhältnis der beiden Zahnbögen eintreten, sondern auch die Variationen, die in irgendeinem besonderen Entwicklungsstadium gefunden werden können. Es ist diese Variabilität, die das Studium der normalen Entwicklung der Okklusion so vielseitig und interessant macht.
Mit 11 Abbildungen
Der Verfasser dankt Herrn Prof.G. Korkhaus, Bonn, für die Übersetzung dieser Arbeit in die deutsche Sprache. 相似文献
Summary An attempt has be made to indicate not only the changes that take place between birth and adulthood in the morphology, alignment and relationship of the two dental arches, but also the variation which might be found at any one particular stage of development. It is this variation which makes the study of normally developing occlusion so full of variety and interest.
Résumé Ce travail cherche à indiquer, de la naissance à l'âge adulte, non seulement les modifications de morphologie, de l'alignement dentaire et des relations des deux arcades dentaires, mais également les variations qui peuvent être trouvées à n'importe quel stade du développement. Ce sont ces variations qui rendent l'étude du développement normal de l'occlusion si variée et intéressante.
Mit 11 Abbildungen
Der Verfasser dankt Herrn Prof.G. Korkhaus, Bonn, für die Übersetzung dieser Arbeit in die deutsche Sprache. 相似文献
19.
An electrical stimulator was used to assess the onset of analgesia after inferior alveolar block injections. The findings were considered in relation to the anatomy of an inferior alveolar nerve, which was sectioned at three levels. It was found that lip and pulpal analgesia was achieved over a similar period, and the commonly held belief that lip anaesthesia occurs first is due to a lack of awareness of early pulpal sensory changes. 相似文献
20.
The diameter and internodal length of the fibres in the inferior alveolar nerve from a male cadaver were measured. The results were compared with other human and animal studies, and the possible changes in composition of the nerve following tooth loss were discussed. Clinical difficulties of local analgesia were related to the results. 相似文献