Long-Term Efficacy of Variable-Thread Tapered Implants—A Retrospective, Clinical and Radiological Evaluation
| Autor: | Michael Back, Florian Andreas Probst, Oliver Blume, Jan Ir Wildenhof, Eva Maria Schnödt, Sven Otto |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Male
Peri-implantitis Medicine (General) Radiography Dentistry Physical examination Article Cohort Studies R5-920 dental implants Humans Medicine risk factors Survival rate Aged Retrospective Studies health scale for dental implants variable-thread tapered implants medicine.diagnostic_test business.industry Implant failure General Medicine implant success peri-implantitis Radiological weapon Female Implant business Cohort study |
| Zdroj: | Medicina; Volume 56; Issue 11; Pages: 564 Medicina, Vol 56, Iss 564, p 564 (2020) Medicina Volume 56 Issue 11 |
| ISSN: | 1648-9144 |
| DOI: | 10.3390/medicina56110564 |
| Popis: | Background and Objective: There is multifaceted evidence that variable-thread tapered implants (VTTIs) offer high primary stability but few regarding the long-term success. This retrospective clinical and radiological cohort study assessed the long-term outcome of VTTIs. Material and Methods: All patients treated in an OMFS practice with NobelActive Internal® VTTI between October 2007 and September 2011 were invited for clinical examination. The outcome variables were (i) survival rate, (ii) implant success according to the &ldquo Health Scale for Dental Implants&rdquo and (iii) prevalence of peri-implantitis. Furthermore, the effect of local and systemic risk factors was investigated. Results: In 81 subjects (46 females and 35 males, mean age 65.6 years) 270 implants (157 VTTIs and 113 others as a control group) were analyzed. In 7 out of 81 patients (8.6%), 8 out of 157 VTTIs (5.1%) and 5 out of 113 other implants (4.4%) were lost. Peri-implantitis, defined as (i) presence of bleeding on gentle probing (0.25 N) or exudation and (ii) radiographic bone loss exceeding 0.5 mm since implant insertion to last follow-up, was the most common reason for implant loss (11 out of 13, 84.6%). Sixty-six out of 87 VTTIs (75.9%) were successful. Seventeen out of 42 patients (40.5%) developed peri-implantitis on 29 out of 79 VTTI sites (36.7%). Plaque and missing keratinized peri-implant mucosa were identified as potential risk factors for the development of peri-implantitis. Conclusion: Variable-thread tapered implants showed good long-term results, even in low bone quality. Peri-implantitis was the most common reason for implant failure and may be connected to certain risk factors. |
| Databáze: | OpenAIRE |
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