title: Distraction osteogenesis: a treatment tool to improve baseline conditions for esthetic restorations on immediately placed dental implants--a case report.
abstract: Replacement of two adjacent teeth in an anterior maxilla with deficient hard and soft tissues appears to be the utmost challenge in implant dentistry in the esthetic zone. In this case report, baseline conditions for implant placement were improved by alveolar distraction to enhance hard and soft tissues around the maxillary central incisors. Three months after the active phase of distraction, the roots of the central incisors were extracted and two screw-type dental implants were immediately placed into the extraction sockets. For immediate provisionalization, acrylic resin crowns were fabricated on UCLA abutments, providing the ideal emergence profile to support the periimplant soft tissue. Six months after implant placement, the prosthetic restoration of the case was finished with ceramic crowns cemented to individually fabricated zirconium oxide abutments. The described treatment strategy appears to have a great potential to restore natural esthetics in cases with major tissue deficiencies in the esthetic zone.
authors.affiliation: Department of Operative Dentistry and Periodontology, Albert Ludwigs University, Freiburg, Germany. huerzeler@t-online.de
authors.forename: Markus B
authors.initials: MB
authors.lastname: Hürzeler
authors.forename: Otto
authors.initials: O
authors.lastname: Zuhr
authors.forename: Günther
authors.initials: G
authors.lastname: Schenk
authors.forename: Uli
authors.initials: U
authors.lastname: Schoberer
authors.forename: Hannes
authors.initials: H
authors.lastname: Wachtel
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Bolz
mesh_terms: D000180:Acrylic Resins; D000328:Adult; D016301:Alveolar Bone Loss / Q000601:surgery; D000543:Alveoloplasty / Q000379:methods; D002516:Ceramics; D003238:Connective Tissue / Q000637:transplantation; D003442:Crowns; D000044:Dental Abutments; D003758:Dental Implantation, Endosseous / Q000379:methods; D015921:Dental Implants; D003764:Dental Materials; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D004955:Esthetics, Dental; D005500:Follow-Up Studies; D005881:Gingiva / Q000637:transplantation; D006801:Humans; D007180:Incisor; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation / Q000601:surgery; D008297:Male; D008437:Maxilla / Q000601:surgery; D019857:Osteogenesis, Distraction; D020390:Tooth Socket / Q000601:surgery; D015040:Zirconium
chemical_list: D000180:Acrylic Resins; D015921:Dental Implants; D003764:Dental Materials; D015040:Zirconium; C028541:zirconium oxide