INFLUENCE OF DIFFERENT BONDING PROTOCOLS FOR ALIGNER ATTACHMENTS ON TRANSFER ACCURACY, LOSS RATE AND ABRASION RESISTANCE - A RANDOMISED CONTROLLED TRIAL

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00031169

Enrollment

Registered

2023-03-22

Start date

2023-11-01

Completion date

Unknown

Last updated

2025-10-06

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

Conditions

K07

Interventions

Group 1: The observation period is 6 months independent of the total treatment time. Treatment planning is the same for both groups. Only when the necessary attachments are bonded, when the first alig

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Orthodontic correction planned with aligners (Shark Aligner) - Attachments necessary in both dental arches - Permanent dentition - No severe crowding in the front LII >7 - Signed consent

Exclusion criteria

Exclusion criteria: - Missing teeth - Microdont teeth or abnormal shape - Tooth non-unions (permanent dentition) - Previous or planned extraction of permanent teeth - Severe crowding in the front LII>7 - Existing amalgam or gold restorations - Periodontal / gingival damage (probing depth >3mm or radiologically detectable) - Craniofacial syndromes/LKG/genetic diseases - Systemic diseases, increased need for protection

Design outcomes

Primary

Measure	Time frame
Primary outcome is the deviation TARGET/ACTUAL from planning to T0.	—

Secondary

Measure	Time frame
Secondary outcome is the deviation TARGET/ACTUAL from planning to T1, T2, T3.	—

Countries

Germany

Contacts

Public ContactRebecca Jungbauer

Universitätsklinikum Regensburg, Poliklinik für Kieferorthopädie

rebecca.jungbauer@ukr.de+49 941 944 16052

Outcome results

None listed

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