Dental review; devoted to the advancement of dentistry. . he year 1889, while at the Harvard Medical School, Ihad the privilege of making exhaustive investigations regarding themovements of the lower jaw, under the direction of Prof. H. ; the diagram, Fig. 4, to which I wish to draw your atten-tion, is taken from a work published at that time ;* without goinginto detail I will state that tracings of the movements of any givenpoint of the lower jaw were recorded by a photographic method,insuring accuracy, and many interesting results were obtained ; itwas found that certain errors exi
Dental review; devoted to the advancement of dentistry. . he year 1889, while at the Harvard Medical School, Ihad the privilege of making exhaustive investigations regarding themovements of the lower jaw, under the direction of Prof. H. ; the diagram, Fig. 4, to which I wish to draw your atten-tion, is taken from a work published at that time ;* without goinginto detail I will state that tracings of the movements of any givenpoint of the lower jaw were recorded by a photographic method,insuring accuracy, and many interesting results were obtained ; itwas found that certain errors existed in all descriptions of thetemporo-maxillary articulation, as given by the eminent anatomists * Movements of the lower jaw. Luce, 1889. 912 THE DENTAL REVIEW. and physiologists. Figure 4 shows tracings of the exact movementsof the lower jaw, the numbers indicating the positions occupiedsimultaneously by the various points. Referring back to the essayists statement that the center oraxis of movement is located in the articulation, I contend that this. Fig. 2. Adult. (Gray.) is not anatomically correct, rather anatomically incorrect, and anydevice based upon this principle will fail of true application. There is no center of movement in the lower jaw; its relativemovements vary in different individuals, but in the great majority ofcases, when the mouth is opened, the condyle advances and the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1901
