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- Title
The Longitudinal Clinical Effectiveness of ITI Solid-Screw Implants in Partially Edentulous Patients: A 5-Year Follow-up Report.
- Authors
Behneke, Alexandra; Behneke, Nikolaus; d’Hoedt, Bernd
- Abstract
A total of 114 ITI solid-screw implants was consecutively placed in 55 partially edentulous patients and restored with 68 fixed prostheses. The patients were followed for at least 5 years in a prospective study that focused on implant success and longitudinal reactions of the periimplant hard and soft tissues. During the study period, 5 implants failed and 15 implants were lost to follow-up, resulting in a cumulative survival rate of 95.3% after 5 years of loading. The success analysis included additional strictly defined events ("first occurrence of marginal bone loss = 4 mm," "first occurrence of pocket depth = 4 mm," and "first occurrence of crevicular fluid volume = 2.5 mm") and resulted in a cumulative 5-year success rate of 89.0%. Median loss of marginal bone, as observed on radiographs, was 0.7 mm between implant placement and prosthetic treatment and 0.5 mm between prosthesis placement and the 5-year evaluation. Compared to the previous year's value, the annual increase in marginal bone loss did not reach a level of statistical significance between 1 and 5 years of function, so that a steady state prevailed. The incidence of lingual-palatal surfaces affected with remarkable plaque deposits increased from 13% after prosthesis placement to 23% after 5 years. Sulcus Bleeding Index, probing depth, attachment level, and crevicular fluid volume were used to describe the health of the peri-implant soft tissues. The research parameters remained almost unchanged and indicated a soft tissue response within physiologic levels. Most mechanical complications were experienced during the first year of loading and were related to loosening of occlusal screws, which occurred in 8 (12%) of 68 restorations.
- Subjects
DENTAL screws; EDENTULOUS mouth; SURVIVAL analysis (Biometry); DENTAL radiography; GINGIVAL fluid; DENTAL plaque; BONE resorption; DENTAL implants; ENDOSSEOUS dental implants; ORAL mucosa; PATIENTS
- Publication
International Journal of Oral & Maxillofacial Implants, 2000, Vol 15, Issue 5, p633
- ISSN
0882-2786
- Publication type
Article