Retrospective study of changes in incisor inclination during the leveling phase: self-ligating brackets versus twin brackets

Retrospective study of changes in incisor inclination during the leveling phase: self-ligating brackets versus twin brackets - SLB versus TB

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00030857

Enrollment

256

Registered

2022-12-14

Start date

2022-12-01

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

K07

Interventions

Group 1: Self-ligating brackets (SLB) Group 2: Twin brackets (TWIN)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients of all malocclusions and dysgnathia with the exception of LKG clefts and syndromes (KIG group A) all ethnicities

Exclusion criteria

Exclusion criteria: Patients with cleft lip, jaw, palate, leaflets or other dentofacial abnormalities (KIG Group A) Patients with syndromic diseases (KIG group A) Patients with existing or previous pathologies (tumours, condylar hyperplasia/hypoplasia, etc.) or trauma/fractures in the cranial area no availability of a lateral cephalometric X-ray with scale prior to the start of orthodontic therapy Patients with extractions within the period between 1st and 2nd FRS Patients with functional appliances, fixed class II/III mechanisms, lingual arches, transpalatal arches with bite blocks, partial arches, intrusion mechanisms in the anterior region, Pendulum/Nance appliances, square arches, hyrax/quadhelix appliances, open coils in the anterior region, Topjet appliances , reverse arches and ASR in the anterior region within the period between 1st and 2nd lateral cephalogram

Design outcomes

Primary

Measure	Time frame
Incisor inclination [°]	—

Countries

Germany

Contacts

Public ContactChristian Kirschneck

Poliklinik für Kieferorthopädie, Universitätsklinikum Regensburg

christian.kirschneck@ukr.de+499419446093

Outcome results

None listed

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