The Dental cosmos . for the weight of a building to break the arch of a door or tongue exerts a much greater force in the act of swallowing, andwould prevent the inward movement of the teeth if so slight a press-ure as the muscles of the cheeks could exert were really the cause of the Fig. deformity. For the sake of the argument, let us suppose it were pos-sible for the buccinator muscle to produce this contraction ; we shouldthen expect to find the modification of the osseous structures would shut out semi-V-shaped (Fig. 3) and semi-saddle-shaped 926 THE DENTAL COS
The Dental cosmos . for the weight of a building to break the arch of a door or tongue exerts a much greater force in the act of swallowing, andwould prevent the inward movement of the teeth if so slight a press-ure as the muscles of the cheeks could exert were really the cause of the Fig. deformity. For the sake of the argument, let us suppose it were pos-sible for the buccinator muscle to produce this contraction ; we shouldthen expect to find the modification of the osseous structures would shut out semi-V-shaped (Fig. 3) and semi-saddle-shaped 926 THE DENTAL COSMOS. arches (Fig. 4) entirely, and a majority of other irregularities of theteeth in which there is bilateral asymmetry, for however much onemight incline to the prevalent theory, no one would dare to assertthat the muscle will act on one side of the mouth, while that on Fig. 5-
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Keywords: ., bookauthor, bookcentury1800, bookdecade1890, booksubjectdentistry
