Skip to content

Open flap debridement and guided tissue regeneration after 20 years in infrabony defects

Open flap debridement and guided tissue regeneration after 20 years in infrabony defects

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00012863
Enrollment
16
Registered
2017-08-03
Start date
2017-07-25
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

K05.6 K05.5

Interventions

Group 1: Open flap debridement: supportive periodontal therapy (SPT), patient information and consent form for use of all evaluated data (including measurement of CO level of exhalation air and bone s

Sponsors

Poliklinik für Parodontologie, Zentrum für Zahn-, Mund- und Kieferheilkunde der Johann Wolfgang-Goethe Universität Frankfurt am Main
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

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

MeasureTime 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

MeasureTime frame
PBL-V-difference (bonesounding) between 12/120 and 240 months

Countries

Germany

Contacts

Public ContactHari Petsos

Poliklinik für Parodontologie, Zentrum für Zahn-, Mund- und Kieferheilkunde der Johann Wolfgang-Goethe Universität Frankfurt am Main

petsos@med.uni-frankfurt.de00496963015642

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026