Flexible post in a dental post and core system
DCFirst Claim
1. A dental reinforcement member for endodontic and reconstructive pin therapy comprising a post having a coronal end and an apical end, and further comprising a bundle of fibers having at least one non-axially aligned flexible fiber therein, said fibers extending from a coronal end to an apical end of said post.
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Abstract
A flexible post for endodontic or reconstructive tooth therapy having a modulus of elasticity which is less than or equal to that of dentin of 18 GPa (giga Pascals). The present invention is preferably made of medical grade optical glass fibers. The micro filaments of the present invention are treated to impart flexibility to each fiber. The fibers are twisted by twisting on other non-axial arrangements of the fibers to impart strength to the unit post. This allows it to function as a permanent post in a tooth. The dental post is flexible and the post conforms to the natural curved contours of a root canal to reduce machining of the tooth and mechanical weakening of the tooth structure.
50 Citations
25 Claims
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1. A dental reinforcement member for endodontic and reconstructive pin therapy comprising a post having a coronal end and an apical end, and further comprising a bundle of fibers having at least one non-axially aligned flexible fiber therein, said fibers extending from a coronal end to an apical end of said post.
- 2. A dental reinforcement member for endodontic and reconstructive pin therapy comprising a bundle of non-axially aligned flexible fibers wherein said fibers include a twisted bundle of medical grade optical fibers in a twisted bundle of linearly extending fibers.
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24. A dental reinforcement member for endodontic and pin reconstructive therapy comprising a prefabricated generally cylindrical post for extending from an apical end to a coronal end of a tooth, said post being a bundle of flexible fibers in a cured resin, said fibers having at least one non-axially aligned fiber therein.
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25. A dental reinforcement member for endodontic and pin reconstructive therapy comprising a prefabricated cylindrical, parallel sided flexible post for extending from an apical end to a coronal end of a tooth, said post being a unitary bundle of non-axially aligned flexible fibers.
Specification