K05.6 K05.5
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Participation at the randomized clinical trials "Guided tissue regeneration procedure with bioresorbable membranes versus conventional flap surgery in the treatment of infrabony periodontal defects" (Ratka-Krüger at al. 2000) and "Open flap debridement and guided tissue regeneration after 10 years in infrabony defects" (Nickles et al. 2010), (2) written informed consent
Exclusion criteria
Exclusion criteria: Disease or condition (e.g. valvular transplant), which triggers during the evaluation of different parameters (e.g. PPD and CAL) a transitory becteremia and is in need of an antibiotic prophylaxis
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| (1) PAL-V gained 240 months after therapy, i.e. change of PAL-V from 12/120 to 240 months after therapy, (2) number of defects with attachment loss >2mm from 12/120 to 240 months, (3) tooth loss | — |
Secondary
| Measure | Time frame |
|---|---|
| PBL-V-difference (bonesounding) between 12/120 and 240 months | — |
Countries
Germany
Contacts
Poliklinik für Parodontologie, Zentrum für Zahn-, Mund- und Kieferheilkunde der Johann Wolfgang-Goethe Universität Frankfurt am Main