Immediate occlusal loading of extrasinus zygomatic implants: a prospective cohort study with a follow-up period of 8 years. 2012

Reginaldo Mário Migliorança, and Bruno Salles Sotto-Maior, and Plínio Mendes Senna, and Carlos Eduardo Francischone, and Altair Antoninha Del Bel Cury
Department of Implantology, São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil.

The aim of this study was to evaluate the long-term success rate of immediate occlusal loading of extrasinus zygomatic implants after an 8-year follow-up. From 62 patients who needed implant treatment in 2003, 25 patients who presented with maxillary atrophy met the inclusion criteria and agreed to participate in the study. All patients received fixed dentures under immediate occlusal loading supported by extrasinus zygomatic implants associated with anterior standard implants. No bone grafting procedures were performed. During the 8-year follow-up period, 21 patients underwent clinical evaluation and radiographic examinations every 6 months. This study conforms to the STROBE guidelines regarding prospective cohort studies. 40 extrasinus zygomatic and 74 anterior standard implants were evaluated. All patients were clinically free of signs and symptoms of sinus disturbance at all follow-up appointments. After 8 years, the success rates of extrasinus zygomatic implants, standard anterior implants and definitive prostheses were 97.5%, 95.9% and 95.2%, respectively. Within the limits of this study, immediate occlusal loading of extrasinus zygomatic implants presents a predictable treatment option for the atrophic maxilla.

UI MeSH Term Description Entries
D008439 Maxillary Diseases Diseases involving the MAXILLA. Disease, Maxillary,Diseases, Maxillary,Maxillary Disease
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D003758 Dental Implantation, Endosseous Insertion of an implant into the bone of the mandible or maxilla. The implant has an exposed head which protrudes through the mucosa and is a prosthodontic abutment. Dental Implantation, Osseointegrated,Endosseous Dental Implant Therapy,Endosseous Implantation,Osseointegrated Dental Implantation,Endosseous Dental Implantation,Implantation, Endosseous,Implantation, Endosseous Dental,Implantation, Osseointegrated Dental
D003781 Denture Retention The retention of a denture in place by design, device, or adhesion. Denture Stability,Retention, Denture,Stability, Denture
D003827 Denture, Complete, Upper A complete denture replacing all the natural maxillary teeth and associated maxillary structures. It is completely supported by the oral tissue and underlying maxillary bone.
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015050 Zygoma Either of a pair of bones that form the prominent part of the CHEEK and contribute to the ORBIT on each side of the SKULL. Cheek Bone,Jugal Bone,Malar Bone,Zygomatic Arch,Arches, Zygomatic,Zygomatic Arches,Arch, Zygomatic,Bone, Cheek,Bone, Jugal,Bone, Malar,Bones, Cheek,Bones, Jugal,Bones, Malar,Cheek Bones,Jugal Bones,Malar Bones,Zygomas
D015331 Cohort Studies Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesized to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics. Birth Cohort Studies,Birth Cohort Study,Closed Cohort Studies,Cohort Analysis,Concurrent Studies,Historical Cohort Studies,Incidence Studies,Analysis, Cohort,Cohort Studies, Closed,Cohort Studies, Historical,Studies, Closed Cohort,Studies, Concurrent,Studies, Historical Cohort,Analyses, Cohort,Closed Cohort Study,Cohort Analyses,Cohort Studies, Birth,Cohort Study,Cohort Study, Birth,Cohort Study, Closed,Cohort Study, Historical,Concurrent Study,Historical Cohort Study,Incidence Study,Studies, Birth Cohort,Studies, Cohort,Studies, Incidence,Study, Birth Cohort,Study, Closed Cohort,Study, Cohort,Study, Concurrent,Study, Historical Cohort,Study, Incidence
D015921 Dental Implants Biocompatible materials placed into (endosseous) or onto (subperiosteal) the jawbone to support a crown, bridge, or artificial tooth, or to stabilize a diseased tooth. Dental Implants, Mini,Dental Prosthesis, Surgical,Implants, Dental,Dental Implant,Dental Prostheses, Surgical,Implant, Dental,Prostheses, Surgical Dental,Prosthesis, Surgical Dental,Surgical Dental Prostheses,Surgical Dental Prosthesis,Dental Implant, Mini,Mini Dental Implant,Mini Dental Implants

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