| 摘要 |
<p>A dental post system (100, 200) includes a core (104, 204) having an outer surface and a thermoplastic coating (108, 208) on the outer surface. The thermoplastic coating (108, 208) includes a flexible polymer having different material properties than the underlying supporting core (104, 204). Heat, bonding agents or other plasticizers adapt the thermoplastic coating (108, 208) for fitting into the shape of the drilled root canal while the rigid core (104, 204) is relatively unaffected. Methods include plasticizing the coating before inserting the dental post system into a tooth canal, bonding the coating, the core, the resin cement and the tooth canal, and re-plasticizing the coating or dissolving the coating after insertion and retrieving the dental post system.</p> |
