title: Restoring the single lower incisor implant with esthetics, antirotation, and retrievability.
abstract: The long-term success of restoring the lower incisor implant is partially dependent on retrievability of all components down to the implant. Because this implant is usually placed vertically or buccally in the bone, the ability to achieve esthetics without seeing the screw access hole becomes critical. The emergence profile of the crown overlying the implant fixture ultimately dictates the esthetics. The single crown can also become loose during function and, therefore, antirotation of the abutment is imperative. The Octa-Hex Implant Restoration System presents an alternative method of achieving gingival seal with a titanium-alloy connector to the implant, emergence profile with a custom-fabricated casting on this connector, antirotation from intimate contact with implant indexing, and retrievability by a fixation screw and cementation. With the lower incisor, this system offers retrievability without the screw access hole affecting esthetics.
authors.affiliation: Boston University School of Graduate Dentistry, Massachusetts.
authors.forename: G M
authors.initials: GM
authors.lastname: Marlin
authors.forename: D
authors.initials: D
authors.lastname: Baraban
mesh_terms: D003442:Crowns; D015921:Dental Implants; D017267:Dental Prosthesis Design; D017269:Dental Prosthesis Repair / Q000379:methods*; D017268:Dental Prosthesis Retention; D005260:Female; D006801:Humans; D007180:Incisor; D008334:Mandible; D008875:Middle Aged; D012399:Rotation; D014093:Tooth, Artificial
chemical_list: D015921:Dental Implants