Tooth-die dowel-pin and locking assembly and method of making a dental model incorporating said assembly
First Claim
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1. A tooth-die dowel-pin and locking assembly for locking only an individual tooth-die in a dental model against movement in all directions, comprising:
- an elongated dowel-pin means adapted to be secured to the base of only an individual tooth die, said dowel-pin means having a free end and a fastening end;
said dowel-pin means having first hole means which extends transversely therethrough between opposite ends thereof and which has spaced apart hole portions; and
locking pin means, having a free end and a grasping end, adapted to be transversely inserted through said first hole means and through corresponding mating second hole means in the base of a dental model, for locking said individual tooth die in the dental model against movement in all directions when said locking pin means is inserted through said first and second hole means, said first and second hole means being transversely aligned with each other when the tooth die is inserted in the dental model.
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Abstract
A dowel-pin for a tooth-die has two longitudinally spaced bore holes into which are inserted corresponding pins of a U-shaped locking device to form an assembly which is embedded in the base stone during the fabrication of a dental model. After trimming of the stone, the locking device is removed to permit a corresponding tooth die to be removed from the model. When the tooth die is returned to the model, the locking device is reinserted through the stone and into the bore holes of the dowel-pin, thereby locking the tooth die and dowel-pin against movement in all directions.
21 Citations
13 Claims
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1. A tooth-die dowel-pin and locking assembly for locking only an individual tooth-die in a dental model against movement in all directions, comprising:
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an elongated dowel-pin means adapted to be secured to the base of only an individual tooth die, said dowel-pin means having a free end and a fastening end; said dowel-pin means having first hole means which extends transversely therethrough between opposite ends thereof and which has spaced apart hole portions; and locking pin means, having a free end and a grasping end, adapted to be transversely inserted through said first hole means and through corresponding mating second hole means in the base of a dental model, for locking said individual tooth die in the dental model against movement in all directions when said locking pin means is inserted through said first and second hole means, said first and second hole means being transversely aligned with each other when the tooth die is inserted in the dental model. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification