Nondestructive dental cap removal methods
OwnerJoseph A. Lynchinventor
Life of this patent
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Abstract
Dental bridge or crown caps are removed by drilling a hole in the crown for inserting the end of a bolt to contact the tooth stub. The bolt is in a metal stabilizing bar member which rests in balanced and aligned position upon the cap structure and is connected thereto as a unit that moves together by means of wire or equivalent flexible means wrapped thereabout and tightened so that the bolt pressure on the tooth stub will apically lift the crown without shear stresses.
Claims10
The improved non-destructive method of removing dental crown and bridge caps anchored on a least one shaped tooth stub, comprising the steps of,
- disposing a metal stabilizing member with a bolt threaded therethrough with the bolt extending through the hole in contact with the tooth stub in a substantially stabilized position for raising the cap without shear forces from the tooth stub by means of pressure on the stub when the bolt is pressed against the stub,
- securing flexible filamentary means about the cap and stabilizing member with the stabilizing member in said stabilized position to grasp the cap and form with the stabilizing member a composite unit that may be moved to dislodge the cap from the tooth stub, and
- producing a dislodging pressure for non-destructive unseating of the cap from the stub by rotation of the threaded bolt against the tooth stub to thereby move said composite unit away from said stub.
The improved non-destructive method of removing dental caps from a tooth stub comprising the steps of wrapping filamentary means about the cap to grasp it and engaging the filamentary means by an expandible member comprising a bar with a screw therethrough positioned on the tooth stub held together with the cap to move together as a unit to thereby pull the cap from the stub as the unit moves by means of pressure on the tooth stub exerted by the screw.
Dependencies are inferred from the claim text.