title: Early implant placement in bilateral sinus floor augmentation using iliac bone block grafts in severe maxillary atrophy: a clinical, histological, and radiographic case report.
abstract: Effectively restoring a grossly atrophic maxilla can be difficult for the implant surgeon. The placement of dental implants in patients who are edentulous in the posterior maxilla can present difficulties because of deficient posterior alveolar ridge and increased pneumatization of the maxillary sinus, resulting in a minimal hard tissue bed. Implant placement requires adequate quality and quantity of bone, especially in the posterior maxilla. Insufficient bone height and width in this area of the maxilla, because of expansion of the maxillary sinus and atrophic reduction of the alveolar ridge, represents a contraindication for conventional insertion of dental implants. The reconstruction of edentulous patients with adequate bone volume and density by the use of bone graft and, subsequently, the placement of dental implants has become a viable treatment option with high predictability. It is commonly shared that autologous bone graft is the gold standard grafting method in the augmentation of Higmoro antrum and in any kinds of guided bone regeneration. In this article, the authors report a case of severe maxillary atrophy that is augmented by block bone graft harvested from iliac crest. An early placement of implants is possible due to the quick healing of the site, as proven by histologic examinations.
authors.affiliation: Department of Odontostomathology, Faculty of Medicine, University of Florence, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Acocella
authors.forename: Roberto
authors.initials: R
authors.lastname: Sacco
authors.forename: Paolo
authors.initials: P
authors.lastname: Niardi
authors.forename: Tommaso
authors.initials: T
authors.lastname: Agostini
mesh_terms: D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000601:surgery; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D001284:Atrophy; D001706:Biopsy; D015519:Bone Density / Q000502:physiology; D016025:Bone Transplantation / Q000000981:diagnostic imaging / Q000379:methods*; D000044:Dental Abutments; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D005260:Female; D048091:Guided Tissue Regeneration / Q000379:methods; D006801:Humans; D007575:Jaw, Edentulous / Q000000981:diagnostic imaging / Q000601:surgery; D008437:Maxilla / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D008443:Maxillary Sinus / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D016348:Osseointegration / Q000502:physiology; D010011:Osteocytes / Q000473:pathology; D010012:Osteogenesis / Q000502:physiology; D014057:Tomography, X-Ray Computed
chemical_list: D015921:Dental Implants