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A multicenter report on 1,022 consecutively placed ITI implants: a 7-year longitudinal study.
The International Journal of Oral & Maxillofacial Implants
|October 31, 2000
Summary
This 7-year study on ITI implants in 440 patients found high cumulative survival rates, with success slightly declining after 5 years. Factors like patient age and bone regeneration influenced ITI implant outcomes.
Area of Science:
- Dentistry
- Oral Implantology
- Prosthodontics
Background:
- Dental implants are crucial for tooth replacement.
- Long-term success rates of specific implant systems require continuous evaluation.
- ITI implants are widely used, necessitating data on their 7-year performance.
Purpose of the Study:
- To evaluate the cumulative success and survival rates of ITI implants over a 7-year period.
- To identify factors influencing ITI implant success and survival.
- To assess ITI implant performance across various patient groups and indications.
Main Methods:
- A 7-year multicenter study involving 440 patients and 1,022 ITI implants.
- Annual clinical and radiographic examinations using predefined success criteria.
- Statistical analysis of cumulative survival and success rates, including subgroup comparisons.
Main Results:
- Global failure rate reached 6.6% over 7 years, with 1.4% early failures.
- Cumulative survival rates were 95.4% at 5 years and 92.2% at 7 years.
- Lower success rates observed in older, periodontally treated patients, and completely edentulous arches.
Conclusions:
- ITI implant success rates remain high up to 5 years, with a slight decline between 5 and 7 years.
- Factors such as patient age, periodontal status, and bone regeneration significantly impact ITI implant outcomes.
- Implants in younger patients without pathology, after bone regeneration, and for single-tooth replacements showed superior success rates.