Journal of Oral Implantology August 2014 - (Page 469)

CASE REPORT Calvarial Autogenous Bone Graft for Maxillary Ridge and Sinus Reconstruction for Rehabilitation With Dental Implants Alliny Souza Bastos, DDS, PhD1 Rubens Spin-Neto, DDS, PhD1,2 Nicolau Conte-Neto, DDS, PhD1 Keidy Galina, DDS3 Rodolfo Jorge Boeck-Neto, DDS, PhD4 ´ Claudio Marcantonio, DDS, PhD5 Elcio Marcantonio, DDS, PhD6 Elcio Marcantonio Jr, DDS, PhD1* Autogenous bone grafting is the gold-standard technique for bone augmentation procedures prior to implant placement. If the amount of available intraoral donor bone is insufficient, it is necessary to harvest bone graft from extraoral sites, such as calvaria. Although this technique is well established, only a few case reports show the histological analysis of the grafted bone at the moment of implant placement. This article reports the case of a 48-year-old female patient with a critical atrophic maxillary ridge reconstructed using autogenous calvarial bone graft prior to implant placement, with clinical and histological evaluation. Bone was collected under general anesthesia from the parietal bone. The outer cortical originated the bone blocks, and the medullar bone layer between was collected to be used in the sinus augmentation procedure, together with 5 of the bone blocks triturated. Six months after bone augmentation, 8 implants were placed in the grafted area and 2 biopsies were retrieved (anterior and the posterior regions), allowing the visualization of the bone-remodeling process in the grafted areas. The patient had a stable recovery. Our results showed that although necrotic bone could still be seen in the outer layer of the grafted area, the interface between this necrotic bone and the already remodeled bone was consistent with biocompatibility. Two-year radiographic evaluation showed success of the grafts and the implants in supporting an esthetic and functionally stable prosthesis. Summarizing, calvarial bone grafts are a viable alternative for the attainment of adequate bone volume prior to implant placement. Key Words: calvaria, bone graft, atrophic maxilla, dental implants 1 Department of Periodontology, Araraquara Dental School, ˜ UNESP-Univ Estadual Paulista, Araraquara, Sao Paulo, Brazil. 2 Department of Dentistry, Faculty of Health, Aarhus University, Aarhus, Denmark. 3 ˜ Private practice, Araraquara, Sa o Paulo, Brazil. 4 Department of Bucco-maxillo-facial Surgery, UNIARA-Centro ´ ˜ Universita rio de Araraquara, Araraquara, Sao Paulo, Brazil. 5 FAEPO-Araraquara Foundation for Research and Education in ˜ Dentistry, Araraquara, Sao Paulo, Brazil. 6 Department of Bucco-maxillo-facial Surgery, UNESP-Univ Es˜ tadual Paulista, Araraquara Dental School, Araraquara, Sao Paulo, Brazil. * Corresponding author, e-mail: elciojr@foar.unesp.br DOI: 10.1563/AAID-JOI-D-11-00090 INTRODUCTION T he presence of severely atrophic edentulous ridges in the maxilla is one of the most critical issues for oral and maxillofacial rehabilitation with dental implants, since loss of teeth leads to a pattern of bone resorption that can contribute to severe jaw atrophy.1 Many procedures have been suggested for anatomical reconstruction of severely resorbed Journal of Oral Implantology 469

Table of Contents for the Digital Edition of Journal of Oral Implantology August 2014

Helping, Rather Than Criticizing, a Colleague May Lead to a Lifetime of Referrals
Utilization of Ethyl Cyanoacrylate and 2-Octyl Cyanoacrylate Adhesives for Autogenous Bone Graft Fixation: Histomorphometric Study in Rats
Conventional Versus Implant-Retained Overlay Dentures: A Pilot Study of Masseter and Anterior Temporalis Electromyography
Axial Relationship Between Dental Implants and Teeth/Implants: A Radiographic Study
The Effect of Dynamic Loading on Bacterial Colonization of the Dental Implant Fixture–Abutment Interface: An In Vitro Study
Longitudinal Implant Stability Measurements Based on Resonance Frequency Analysis After Placement in Healed or Regenerated Bone
A Clinical Report on the Use of Closed-Tray, Hex-Lock-Friction-Fit Implant Impression Copings
Immediate Restoration of NobelActive Implants Placed Into Fresh Extraction Sites in the Anterior Maxilla
Clinical Study of Flap Design to Increase the Keratinized Gingiva Around Implants: 4-Year Follow-Up
Use of Subepithelial Connective Tissue Graft as a Biological Barrier: A Human Clinical and Histologic Case Report
Calvarial Autogenous Bone Graft for Maxillary Ridge and Sinus Reconstruction for Rehabilitation With Dental Implants
Staged Ridge Splitting Technique for Horizontal Expansion in Mandible: A Case Report
An Overview of Zirconia Dental Implants: Basic Properties and Clinical Application of Three Cases
Dental Gypsum Verification Jig to Verify Implant Positions: A Clinical Report
Platelet-Rich Preparations to Improve Healing. Part I: Workable Options for Every Size Practice
Platelet-Rich Preparations to Improve Healing. Part II: Platelet Activation and Enrichment, Leukocyte Inclusion, and Other Selection Criteria

Journal of Oral Implantology August 2014