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These pliers have a ball and socket for creating one or
several new friction zones. The long lever of the pliers enables the
forces to be applied without much effort. |
The friction zones in the outer coping create 3 new
contact areas. Should the unit be activated too much, the surface can be
trimmed to reduce the friction. |
The activating pliers can also be used to reduce a
friction zone which is too retentive. If necessary, the facing should be
removed for activating the unit and rebuilt later. |
The problem: Conical and telescopic crowns have lost their friction
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