单词 | disocclusion |
释义 | disocclusionn. 1. Dentistry. Failure of opposing teeth to make contact (when the jaws are closed); an instance of this; (also) treatment aimed at producing this; = disclusion n.2 Cf. occlusion n. 3, malocclusion n. ΘΚΠ the world > life > the body > digestive or excretive organs > digestive organs > mouth > tooth or teeth > [noun] > arrangement or position of > specific overbite1887 disocclusion1921 overjet1930 disclusion1964 1921 Dental Items of Interest 43 64 In those cases where a considerable amount of bone tissue has been involved, it is best to grind off enough to produce disocclusion of these particular teeth. 1959 Jrnl. Prosthetic Dentistry 9 990 The limits of grinding are esthetics and disocclusion in all but one of the functional positions and excursions. 2012 B. Ludwig & B. Glasl in Self-ligating Brackets in Orthodontics 105/3 Occlusal stops allow distal disocclusion of teeth. 2. The exposure of something to view or reappearance of something hidden from view (as a result of a change in the observer's perspective, removal of an obstruction in the line of sight, etc., or as a phenomenon in various types of image production); an instance of this. ΚΠ 1972 J. J. Gibson in J. R. Royce & W. W. Rozenboom Psychol. Knowing vi. 220 The optical transition between what I call two ‘vistas’ of the world (as when an observer goes from one room to another) entails the progressive occlusion of some parts of the world and the disocclusion of others. 1989 E. B. Barrett & J. J. Pearson Image Understanding & Man-Machine Interface II 136 In stereo vision, occlusions and disocclusions always occur near depth discontinuities. 2003 Jrnl. Vision 3 562 The change [sc. abrupt appearance of a new stimulus] may reflect an object new to the scene or instead be caused by disocclusion of a pre-existing object. 2005 C. Fehn in O. Schreer 3D Videocommunication ii. 32 Scene parts, which are occluded in the original image, might become visible in any of the ‘virtual’ left- and right-eye views, an event referred to as exposure or disocclusion in the computer graphics literature. This is a new entry (OED Third Edition, December 2013; most recently modified version published online March 2022). < n.1921 |
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