The Dental cosmos . nterfered with by the teethof the opposite arch during their move-ment. Of the large number of cases of irregu-larity of the teeth treated, bur a smallpercentage require the appliance to bearranged to open the bite for their cor-rection. When the jaws are at rest the teethare not in occlusion, the full occlusion ofthe teeth taking place only at the time of. 3U THE DENTAL COSMOS. mastication, during the act of swallow-ing, during extreme muscular or physicalstrain, while enduring pain, and attimes during sleep, when suffering causedby some nervous disorder prompts thegrittin
The Dental cosmos . nterfered with by the teethof the opposite arch during their move-ment. Of the large number of cases of irregu-larity of the teeth treated, bur a smallpercentage require the appliance to bearranged to open the bite for their cor-rection. When the jaws are at rest the teethare not in occlusion, the full occlusion ofthe teeth taking place only at the time of. 3U THE DENTAL COSMOS. mastication, during the act of swallow-ing, during extreme muscular or physicalstrain, while enduring pain, and attimes during sleep, when suffering causedby some nervous disorder prompts thegritting of the teeth. The opening of the bite is the opera-tion which consists in the placing of an upper or lower arch; gold caps, andsometimes plates of gold or silver, werefastened to the occluding surfaces of themolars or bicuspids. Later, vulcanite inthe form of a plate, with the sides raisedas required, was used for this purpose, thethickened part being made to extendover the grinding surface of the teeth to Fig. Fig. 2.
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