A PROSPECTIVE OBSERVATIONAL STUDY OF IMMEDIATELY LOADED PLATFORM SWITCHED 3I IMPLANTS by Jackie Chi
A Thesis Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE (CRANIOFACIAL BIOLOGY) May 2009 Copyright 2009 Jackie Chi
The present prospective clinical study investigated immediate occlusal loading in relation to long-term, clinical outcomes with the 3i Osseotite Certain IOL implant. Radiographs, bacterial sampling, and clinical measurements were obtained at baseline and at follow-up (up to 3 years). The overall survival rate was 70.6% (12/17) and mean crestal bone loss was 2.04 mm (SD = 1.26). Mesial implant sites had an average greater bone loss (2.22 ± 1.66 mm) than distal sites (1.85 ± 0.67 mm). Microbiological sampling of integrated and failed implants revealed similar periodontal pathogens compared with baseline and pool. VAS indicated patient satisfaction was highly correlated (r >0.91, p <0.002) with the ability to chew, pain on chewing, and comfort. 3i IOL implants did not provide a viable and predictable method of treatment and platform switching did not prevent crestal bone loss. Immediate loading did not notably influence the composition and quantity of periodontal pathogens.