The posterior maxilla: An update of anatomical notions based on advances in endosseous implant surface technology. A case report

Miguel Faria Lima, Raquel Parreiras Ferreira, Alex Martins Gomes, João Lima Rodrigues, Paulo Franco Taitson

Objective: Fixed implant-supported rehabilitation of the posterior maxilla is a challenge to dental professionals. Limitations of technique and material have established wrong concepts, especially with regard to bone classification. For instance, the concept of poor-quality bone has been associated with high rates of therapeutic failure because of implants with poorly evolved surfaces. A literature review on the embryological origin of tissues and the anatomy of the maxilla highlight the high regenerative ability of trabecular bone, which is rich in mesenchymal cells. Methods: The present report describes a case of failure of a machined-surface implant placed by osteotomy at the maxillary first molar region. The implant was replaced by a sandblasted, large grit, acid-etched SLA surface with a six-year survival rate follow-up. Clinical and radiographic assessments were performed every six months. Results: Data revealed implant osseointegration stability as well as tissue biocompatibility and prosthetic functionality. Conclusion: The literature on technically advanced implant surfaces suggests that the posterior maxilla is a safe and predictable site for fixed implant-supported rehabilitation.

Keywords: Maxilla. Dental implants. Osteotomy. Osseointegration. Anatomy.

How to cite: Lima MF, Ferreira RP, Gomes AM, Rodrigues JL, Taitson PF. The posterior maxilla: An update of anatomical notions based on advances in endosseous implant surface technology. A case report. Dental Press Implantol. 2013 July-Sept;7(3):61-5.

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