title: Fabricating fiber-reinforced composite posts.
abstract: Endodontic posts do not increase the strength of the remaining tooth structure in endodontically treated teeth. On the contrary, depending on the post design employed (tapered versus parallel-sided), the root can be weakened relative to the amount of tooth removed during preparation. In many cases, if there has been a high degree of damage to the clinical crown, conservative preparation for an anatomic tapered (biomimetic) post with the incorporation of a ferrule on solid tooth structure is necessary to protect the reaming root structure as well as for the long-term retention of the composite resin core and the definitive restoration. Adhesively luted endodontic posts reinforced with glass or quartz fiber lead to better homogeneous tension distribution when loaded than rigid metal or zirconium oxide ceramic posts. Fiber-reinforced posts also possess advantageous optical properties over metal or metal oxide post systems. The clinician should realize that there are admittedly substantial differences in the mechanical loading capacity of the different fiber-reinforced endodontic posts and should be aware of such differences in order to research and select a suitable post system for use.
authors.affiliation: Department of Restorative Dentistry, LMU Dental School. manhart@manhart.com
authors.forename: Jürgen
authors.initials: J
authors.lastname: Manhart
mesh_terms: D000328:Adult; D002244:Carbon; D000077482:Carbon Fiber; D002484:Cementation; D003188:Composite Resins; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis; D055119:Elastic Modulus; D005898:Glass; D006801:Humans; D007180:Incisor; D008437:Maxilla; D011176:Post and Core Technique; D019553:Tooth, Nonvital / Q000534:rehabilitation*
chemical_list: D000077482:Carbon Fiber; D003188:Composite Resins; C009753:fiberglass; D002244:Carbon