A practical treatise on mechanical dentistry . ?with this surface, while the constrictor muscle contracts and closesaround it on a semicircle. This is the Suersen principle, and themain ideas are taken from that appliance. 39§ MECHANICAL DENTISTRY, The velum is of polished hard rubber, gold, or platinum, andmuch resembles a chestnut in form. It is attached to the plate with a hinge-joint, B B, thus giving Fig. i. free movement at the junction of the hard and soft palates. At thejunction of the hard and soft palates there is a stop, which preventsany downward pressure upon the muscles when in a


A practical treatise on mechanical dentistry . ?with this surface, while the constrictor muscle contracts and closesaround it on a semicircle. This is the Suersen principle, and themain ideas are taken from that appliance. 39§ MECHANICAL DENTISTRY, The velum is of polished hard rubber, gold, or platinum, andmuch resembles a chestnut in form. It is attached to the plate with a hinge-joint, B B, thus giving Fig. i. free movement at the junction of the hard and soft palates. At thejunction of the hard and soft palates there is a stop, which preventsany downward pressure upon the muscles when in a relaxed con-dition. Fig. 187.


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903