title: Localized vertical maxillary ridge augmentation using symphyseal bone cores: a technique and case report.
abstract: Vertical augmentation of the alveolar ridge is intended to restore resorbed alveolar ridges. This procedure is important for the placement of dental implants in a favorable position and also to enhance restoration esthetics. This article presents an approach for vertical ridge augmentation in the anterior maxilla utilizing symphyseal bone cores. A patient presented with 2 localized bony defects around the maxillary lateral incisors. Following extraction of these teeth, vertical bone defects of 7 mm on the right and 6 mm on the left were observed in relation to the cementoenamel junction of the adjacent teeth. Two bone cores were harvested from the mandibular symphysis using a trephine. These bone cores were tapped into 2 predrilled osteotomy sites with corresponding diameters until stabilization was achieved. The 2 sites were grafted with demineralized freeze-dried bone allograft and a titanium-reinforced expanded polytetrafluoroethylene membrane. After 5 months, the membranes were removed and vertical ridge augmentation of 5 mm on the right and 4 mm on the left was observed. The width of the ridge was increased as well. Two implants were placed in favorable positions, restored after 6 months, and followed successfully for 1 year after loading. This technique represents a viable approach for augmentation of deficient alveolar ridges prior to the placement of dental implants.
authors.affiliation: Division of Periodontics, Columbia University, School of Dental and Oral Surgery, New York, New York, USA. drkaufmandds@aol.com
authors.forename: Eliaz
authors.initials: E
authors.lastname: Kaufman
authors.forename: Peter D
authors.initials: PD
authors.lastname: Wang
mesh_terms: D000328:Adult; D016301:Alveolar Bone Loss / Q000601:surgery; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D001857:Bone Matrix / Q000637:transplantation; D016025:Bone Transplantation / Q000379:methods*; D002680:Chin / Q000601:surgery; D003442:Crowns; D003758:Dental Implantation, Endosseous / Q000379:methods*; D019250:Dental Implants, Single-Tooth; D005260:Female; D016557:Guided Tissue Regeneration, Periodontal; D006801:Humans; D008437:Maxilla / Q000601:surgery; D008567:Membranes, Artificial
chemical_list: D008567:Membranes, Artificial