1. Immediate loading of implants in the edentulous maxilla: use of an interim fixed prosthesis followed by a permanent fixed prosthesis: a 32-month prospective radiological and clinical study.
- Author
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Bergkvist G, Nilner K, Sahlholm S, Karlsson U, and Lindh C
- Subjects
- Acid Etching, Dental, Aged, Aged, 80 and over, Alveolar Bone Loss classification, Alveolar Bone Loss diagnostic imaging, Alveolar Process diagnostic imaging, Bone Density physiology, Dental Plaque Index, Dental Prosthesis, Implant-Supported, Dental Restoration Failure, Denture Design, Denture Retention, Denture, Complete, Immediate, Denture, Complete, Upper, Female, Follow-Up Studies, Humans, Jaw, Edentulous rehabilitation, Male, Middle Aged, Osseointegration physiology, Periodontal Index, Prospective Studies, Radiography, Surface Properties, Time Factors, Treatment Outcome, Dental Abutments, Dental Implants, Dental Prosthesis Design, Jaw, Edentulous surgery, Maxilla surgery
- Abstract
Purpose: The aim of this study was to prospectively evaluate the survival rate of splinted and immediately loaded Straumann sandblasted, large-grit, acid-etched, solid-screw dental implants in the edentulous maxilla after 32 months of loading., Materials and Methods: Twenty-eight patients (mean age 63 years) with edentulous maxillae received 168 implants (six each) and an implant-supported fixed interim prosthesis within 24 hours after surgery. After a mean healing time of 15 weeks, the patients received permanent screw-retained prostheses. Clinical and radiological examinations were made at implant placement and after 8, 20, and 32 months of loading. All permanent prostheses were removed at the 32-month follow-up; implant stability was checked with a torque device, and the implant stability quotient was determined with resonance frequency analysis., Results: Mean marginal bone loss from baseline to 8 months after loading was 1.6 mm (SD 1.16; p = .094), from 8 to 20 months 0.41 mm (SD 0.63; p = .094), and from 20 to 32 months 0.08 mm (SD 0.49; p = .039). The 32-month cumulative survival rate was 98.2%., Conclusions: The 32-month survival of solid-screw implants - immediately loaded within 24 hours after placement - was similar to survival rates reported for solid-screw implants with conventional loading. Immediate loading and splinting of implants in the edentulous maxilla is a viable treatment alternative.
- Published
- 2009
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