title: Maintaining interimplant crestal bone height via a combined platform-switched, Laser-Lok implant/abutment system: a proof-of-principle canine study.
abstract: Interimplant papillae are critical for achieving esthetic implant-supported restorations in the maxillary esthetic zone. Stable papillary anatomy, however, depends upon a stable volume of underlying crestal bone for support. Multiple studies have documented a critical interimplant distance of 3 mm under which crestal bone resorption occurs. This preclinical proof-of-principle canine study examines a novel implant-abutment system design, combining platform switching with precisely configured laser-ablated abutment and implant microgrooves to maintain interimplant crestal bone at interimplant distances of 2 and 4 mm. Results of this initial preclinical study suggest that it is possible through precise implant/abutment design modifications to place adjacent implants at distances of 2 to 4 mm without inducing subpapillary crestal bone loss.
authors.affiliation: Division of Periodontology, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA. nevinsperimp@aol.com
authors.forename: Myron
authors.initials: M
authors.lastname: Nevins
authors.forename: Marc
authors.initials: M
authors.lastname: Nevins
authors.forename: Luca
authors.initials: L
authors.lastname: Gobbato
authors.forename: Hyo-Jung
authors.initials: HJ
authors.lastname: Lee
authors.forename: Chin-Wei
authors.initials: CW
authors.lastname: Wang
authors.forename: David M
authors.initials: DM
authors.lastname: Kim
mesh_terms: D016301:Alveolar Bone Loss / Q000517:prevention & control*; D000539:Alveolar Process / Q000473:pathology; D000818:Animals; D003238:Connective Tissue / Q000473:pathology; D045662:Dental Etching / Q000379:methods; D059605:Dental Implant-Abutment Design; D003758:Dental Implantation, Endosseous / Q000379:methods; D004285:Dogs; D004846:Epithelial Attachment / Q000473:pathology; D005240:Feasibility Studies; D005881:Gingiva / Q000473:pathology; D007575:Jaw, Edentulous / Q000534:rehabilitation / Q000601:surgery; D007834:Lasers; D008334:Mandible / Q000473:pathology / Q000601:surgery; D016348:Osseointegration / Q000502:physiology; D010012:Osteogenesis / Q000502:physiology; D013499:Surface Properties; D013997:Time Factors