Pilot Study - Early space closure for prevention of gingival invaginations

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00004248

Enrollment

Registered

2012-07-13

Start date

2012-12-01

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

Gingival invagination K05.6

Interventions

Group 1: Orthodontic space closure initiated 2-4 weeks after tooth extraction Group 2: Orthodontic space closure initiated >12 weeks after tooth extraction

Eligibility

Sex/Gender

All

Age

11 Years to 18 Years

Inclusion criteria

Inclusion criteria: - Orthodontic indication for extraction of premolars in the lower jaw - Agreement to compete in the study of the patient and his legal verbally and written Age 11 - 18 Years

Exclusion criteria

Exclusion criteria: - Medication, syndroms oder diseases with high impact on bone or connective tissues. - Complications during tooth extraction or wound healing (e.g. root fracture or infection)

Design outcomes

Primary

Measure	Time frame
Number of gingival invagination after orthodontic space closure	—

Secondary

Measure	Time frame
Dimension of gingival invaginations at the moment of orthodontic space closure. Measured in oral vertical and lingual direction.	—

Countries

Germany

Contacts

Public ContactChristoph Reichert

Universitätsklinikum Bonn Poliklinik für Kieferorthopädie

christoph.reichert@ukb.uni-bonn.de+49 228 28722433

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 23, 2026